Labeo calbasu Shaw and Shebbeare, 1937. The caudal vertebrae are 16 – 17 in number. 49-52. Each half is formed of large, flat bone, the pelvic bone (basipterygium), lying in the middle line in the ventral body wall. 15.7) is placed anterior to anal fin, at the level of cloaca. The radials articulate with the scapula. The following diagrams A, B, C, D and E show the different types of arrangement of stamens based on the cohesion of their parts in different plants. The result indicated 1387 non-redundant (184 contigs and 1203 singletons) putative transcripts with an average length of 542 bp. Like pectoral girdle, it is also formed of two similar halves. It is highly liked for its taste and flavor. These are anterior preorbital, posterior postorbital, supraorbital and postfrontal are of the dorsal side bones and infraorbital forms the anteroventral part of the ring. (iii) A mesocoracoid situated above the coracoid and anterior to the scapula. They are of two types- spines (single ray) and soft rays (segmented rays). On the nutrition of the Indian major carp fry. Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. Its distal end is connected by means of a supraclavicle to a forked bone, the post temporal, one branch of which articulates with the epiotic and the other with the pterotic process. The subopercular lies below and internal to the opercular. & Jhingran, A.G. 1991. A vertical plate or inter-orbital septum separates the two cavities from one another. The caudal fin (D) is the tail fin located at the end of the caudal peduncle and is used for propulsion. Basioccipital is a long, tubular bone. Somactidia are parallel bony rods found embedded within the body muscles. Scales are cycloid type which are thin overlapping bony plates, partly covered by skin. Therefore, a curve was fitted to the scatter diagram using the formula deve- loped, which represents the calculated values of ovary weights at different lengths of L. rohita. 22 Citations (Scopus) Abstract. Which of the following monkey has prehensile tail? In the caudal vertebrae the centrum is amphicoelous. Soft rays are segmented, often branched and biserial. (e) Epitoic is a small bone wedged in between the supra- and exoccipitals and pterotic, and produced into a short epiotic process. Sharma and Sharma (1998) also reported G-bands in … Indian. Trunk vertebrae are 21 in number. Rohu (Labeo rohita) is the most important among the three Indian major carp species used in carp polyculture systems. 15.2) is an extremely complex structure, composed of many investing membrane or dermal bones and cartilage bones. The neural and haemal spines of the last five vertebrae are very broad and closely connected with one another. “Rohu (Labeo rohita) is the most important among the three Indian major carp species used in carp polyculture systems.” According to Casal (2006), 795,128 metric tons of Labeo rohita were produced in aquaculture in 2000. The mesial segment is short and distal segment is reduced. The lower jaw is formed of dentaries, angulars and articulars, Articular is formed by the ossification of Meckel’s cartilage and articulates with the quadrate of the upper jaw. This fish serves as a popular delicious dish. The toothed palatine lies in front, articulating with the olfactory capsule. Before publishing your Notes on this site, please read the following pages: 1. The rohu, rui, or roho labeo (Labeo rohita) is a species of fish of the carp family, found in rivers in South Asia. The roots that originate from the base of the stem are: The infectious stage of Plasmodium that enters the human body i s, identify the substances having glycosidic bond and peptide bond, respectively in their structure. ADVERTISEMENTS: Catla Catla (Theila): It is a fresh water fish inhabiting all the rivers in India. The radials articulate with the posterior border of the pelvic bone. If I recollect correctly, it was in grade eight that I learnt the biological name of rui maach is Labeo Rohita. The endoskeleton of Labeo is completely ossified and forms the framework of the body. It is a large omnivore and extensively used in aquaculture. Labeo Rohita (Rohu): It is found in clear and sluggish rivers and streams. The neural arches arising from the centrum are fused dorsally to form long, backwardly directed neural spine. It is palatable and is liked by the Indian population (Figs. It forms the posterior most part of the skull. Metapterygoid projecting upwards from the quadrate, but between quadrate and the palatine are two investing bones, the ectopterygoid on the ventral, and the entopterygoid on the dorsal edge of the original cartilaginous bar. Itis col worms cloffa actinopterygii ray finned fishes cypriniformes carps cyprinidae minnows or carps labeoninae etymology. 15.6) is formed of: (i) A scapula, situated dorsally to the glenoid facets and developed partly as a replacing, partly as an investing bone; (ii) A coracoid situated ventrally to the glenoid facet and. This particular fish is studied as the type specimen of bony fishes in many Indian Universities. In the rest the arch is produced downwards and backwards into a haemal spine. Beneath the basihyal is present a median urohyal. Drawing Page 01: Labelled diagram of External Feature of Labeo rohita. The epihyal and ceratohyal are provided with three sabre-shaped branchiostegal rays. The pectoral fin is supported by nineteen lepidotrichia which are attached with four somactidia (radials). Mrigal Cirrhinus cirrhosus is known as mirka, one of the common members of major carps in Bangladesh found in the rivers, canals and floodplains. The indigenous major carps are Catla catla, Labeo rohita and Cirrhinus mrigal, apart from these varieties C.reba and Labeo calbasu are also economically viable. The operculum is formed of four investing bones; opercular, preopercular, subopercular and interopercular. | Comparative genomics of rohu (A) Venn diagram showing orthologous gene clusters among four diploid cyprinids, Labeo rohita, Anabarilius grahami, Ctenopharyngodon idellus, and … Lakra and Krishna (1994) reported G-banded karyotypes in Indian major carps. Caudal fin is supported by a number of flattened bony rods. Privacy Policy3. On either side of centrum is present the transverse process or parapophysis. It was discovered by Weber in 1820 who regarded them to be ear ossicles. Sarower-E-Mahfuj M, Hossain MB, Rahman MM, Hoshan MI. (i) The first or mandibular arch forms the jaws. Orbitosphenoids and a median parasphenoid form the floor of this region. Genus-Labeo. The mesethmoid is a transversely placed bone, in front of the frontal bones. The rostral fits into a notch in the mesethmoid. is the natural inhabitant of the re-verine system of Northern and Central India. The Animal Diversity Web (online). The remaining five arches are called branchial or gill-arches, diminishing in size from before backwards. Fin formula: D. 17-18 (3/14-15); P 1. Introduction of Rohu Fish Farming:-Rohu (Roho Labeo or Labeo rohita) is one of the freshwater fishes of the carp family which is very popular fish in India and other parts of the world especially south-east Asia. The anterior forked end is connected with the rib of the twelfth trunk vertebra by ligaments. This fish also called as ”Rui” or “Ruee” or Tapra. NCERT DC Pandey Sunil Batra HC Verma Pradeep Errorless. Order-Cypriniformes. The skull is divided into cranium enclosing the brain with paired olfactory, optic and auditory capsules for the respective sense organs and the visceral or branchial arches. Around focus there are concentric rows of ridges called circulii which are used to count the age of fishes. They have a pair of lateral eyes (B) and nostrils (A) on their snout. The posterior end of the caudal region is enormously modified for the support of the tail fm. To the inner surface of the cleithrum are attached two flat scale-like bones with a slender rod-like postclavicle passing backwards and downwards among the muscles. Asian Fishery Society Indian Branch, Mangalore, India. Disclaimer Copyright, Zoology Notes | Exclusive Notes on Zoology for Students, Urinogenital System of Rohu Fish (Labeo rohita): With Diagram | Zoology, External Morphology of Rohu Fish (With Diagram) | Chordata | Zoology, Blood Vascular System of Rohu Fish (With Diagram) | Chordata | Zoology, Respiratory System of Rohu Fish (With Diagram) | Chordata | Zoology, Dogfish: Origin and Habitat | Chordata | Zoology. Embedded in this ligament is a small bone with a backwardly directed spinous process, which is called interclarium. In fishes, it forms the part of the skull. Which of the following cell type is capable of giving rise to other cell types in sponges ? In between scaphium and tripus is present a stout ligament. Mitra GN, Das I, 1965. Assign the stamens to their respective plants. Dermotrichia support the fold of the fin. (B) Synteny conservation between rohu and zebrafish using Symap. Which of the following is not an attribute of a population ? The outgrowths corresponding to the parapophyses are fused with the centrum and unite in the middle ventral line, forming a haemal arch. Labeo rohita (rohu) is the most preferred species for polyculture among the Indian major carps. Murthy HS, 2002. To cite this page: Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. Biology. It is supposed that this apparatus is a modification of processes of certain vertebrae, which carries pressure stimuli anteriorly to the perilymph. The fin rays are attached with the epiurals and hypiurals in two symmetrical halves. The body is spindle-shaped, laterally flattened, dark greenish-black in color. Chordata, Osteichthyes, Rohu Fish, Skeleton of Rohu Fish, Vertebrates, Zoology. Centrally each scale has an area called focus. The vertebral column is differentiated into distinct bony vertebrae. It is formed of a palato-pterygoquadrate which forms the upper jaw and a Meckel’s cartilage that forms the lower jaw in the embryonic stage. The diagram of Labeo rohita is given below. Suspensorium is formed of two bones, the hyomandibular and symplectic. NCERT P Bahadur IIT-JEE Previous Year Narendra Awasthi MS Chauhan. GnIH and GnRH expressions in the central nervous system and pituitary of Indian major carp, Labeo rohita during ontogeny: An immunocytochemical study. Taxonomy position: Phylum- Chordata. The vomer is a quadrangular bone placed beneath the mesethmoid in front of the parasphenoid on the ventral side of the skull. Each somactid has proximal, mesial and distal segments. Identify the parts labelled A, B, C, D, E, F, G Each exoccipital is distinguished into a basal plate, a lateral paroccipital process and a dorsal process. Chromosomal and karyotypic studies are required for genetic improvement of any organisms. Skull of Labeo (Fig. Fish., 12A(1):1-24. Dorsal fin is a fin located at the back of Labeo (C). KCET 2010: The diagram of Labeo rohita is given below. Frontals articulate antero-laterally with the supraorbitals and postero-laterally with the postfrontals. The lacrymals are attached with the antero-lateral borders of mesethmoid on the antero-dorsal surface of the skull. In front of auditory region the cranium is excavated on each side by a large orbit. The adults are chiefly herbivorous in diet. (ii) The second or hyoid arch forms the suspensorium and hyoid cornu. In the last 3 or 4 trunk vertebrae the parapophyses are fused. 24.1 and 24.2a-c). These are the gill-rakers. Labeo rohita, commonly called the Rohu fish, is one of the typical fresh-water bony fish­es of India. A typical trunk vertebra consists of a centrum with deeply concave anterior and posterior faces. lase, amylase, maltase, invertase, protease and lipase in the digestive tracts of Labeo rohita fingerlings. Radhakrishnan (eds. India is by far the largest producer of rohu, followed by Bangladesh and Myanmar. The cranium of Labeo rohita is divided into four regions: It forms the anterior part of the cranium and is formed of paired nasals, ectoethmoids, lacrymals and unpaired median mesethmoid, vomer and rostral. These bones do not, however, enter into the gape, and do not form the actual upper jaw of the adult fish. It includes seven paired arches uniting in the mid-ventral line. Indian J. Hyoid cornu is composed of paired interhyal, epihyal, ceratohyal, hypohyal and a median unpaired basihyal. Labeo rohita. Hyomandibular articulates with the auditory capsule and on the other side with the symplectic. Camouflage of Chameleon is associated with, The endocrine gland of insects, which secretes the juvenile hormone, is. Identify the parts labelled as A,B,C,D and E - 13683255 Each half of pectoral girdle (Fig. Mitra GN, Mahapatra, 1956. Labeo Rohita In Mustard Sauce, And Stir-Fried Greens On The Side Of all the things I anticipated eating by being a Bengali is fish. 7 Diseases Infection with Aphanomyces invadans is an OIE-reportable disease. Mouth shape and tooth structure vary greatly in fishes, depending on the kind of food normally eaten. 9 (1/8); A. 16-18; P 2. Labeo calbasu Day, 1878. ADVERTISEMENTS: 4. External to them are two large investing bones, the premaxilla and the maxilla, which together form the actual or secondary upper jaw. Hence. They are found in freshwater habitats in the tropics and subtropics of Africa and Asia. The neural spine of the first vertebra is formed of two small pieces called claustrum and scaphium. It does not matter whether you eat sea fish or river fish, the benefits of eating this type of seafood are immense. Physics. It has every high food value and commercial importance. All these bones form an inverted cup-like structure that lodges the internal ear. 2020. The young ones are planktivorous. Opisthotic is absent in adult Rohu Fish (Labeo rohita). The quadrate at the posterior end of the entopterygoid furnishes a condyle for the articulation of the lower jaw. ADW doesn't cover all species in the world, nor does it include all … Though digestive enzyme activity has been estimated in the gastrointestinal tract of Indian major carps [8-12], there is no literature on their activities in different size groups and segments of the digestive tract. In the fourth arch hypobranchial is absent. Chemistry. First three branchial arches are composed of pharyngobranchial above, then epibranchial, then a large ceratobranchial, and a small hypobranchial below. Proc.Congr., 29(3):159. Anal fin has a series of eight fin rays supported by seven somactidia. Our mission is to provide an online platform to help students to discuss anything and everything about Zoology. Local name: Kalibaus, Baus, Kalia. It contains the typical labeos in the subfamily Labeoninae, which may not be a valid group, however, and is often included in the Cyprininae as tribe Labeonini. Around focus there are concentric rows of ridges called circulii which are used to count the age of fishes. These are the basioccipital, forming the greater part of the occipital condyle and the hinder region of the skull-floor, the paired exoccipitals placed one on each side of the foramen magnum and meeting both above and below it, and the supraoccipital, forming the occipital crest on the dorsal side. Amazing Health Benefits of Rohu Fish” Having fish thrice a week can keep you on top of your health. Choose the correct pair from the following. The visceral arches are loosely attached with the skull. In the embryonic stage the concavities are communicated by a narrow notochordal canal perforating the centrum. According to Boyle's law, the product of pressure and volume is a constant. A total of 1671 ESTs of Labeo rohita were retrieved from dbEST database and analysed for functional annotation using various computational approaches. The hindmost centra have their axes deflected upwards and the last centrum is rod-like structure, the urostyle. In which of the following techniques, the embryos are transferred to assist those females who cannot conceive ? The first and second radials each bear two fin rays, and the third largest radial bears the remaining five fin-rays. Each pelvic fin is supported by nine lepidotrichia or fin rays and three somactidia or radials. Accessed at https://animaldiversity.org. Dentary meets with its fellow of the other side in the middle. It is a highly preferred carp and fetches high market price. Frontals articulate anteriorly with the median mesethmoid and laterally and mesially with the nasals and ectoethmoids. (a) Anterior pro-otic which unites with its fellow of the opposite side in the floor of the brain case, just in front of the basioccipital; (b) Opisthotic in the posterior part of the capsule, external to the exoccipital; (c) Sphenotic above the pro-otic and forming part of the boundary of the orbit; (d) Pterotic above the exoccipital and opisthotic, forming a distinct lateral ridge and produced behind into a prominent pterotic process; and. The first four trunk vertebrae have no parapophyses. Palatoquadrate is homologous with the upper jaw of dogfish. They are more numerous than the centra, and three or four haemal arches are attached to the urostyle. In the first six caudals each haemal arch bears a pair of ribs. Learn Biology by Suraiya AkterAssistant Teacher - BSISC#####Enjoy and stay connected with us ! This study was performed to identify individual chromosomes on morphological basis and to characterize a standard karyotype using the fish, Rohu (Labeo rohita, … (b) Parietal region is formed of parietals on the dorsal side, alisphenoids form its lateral sides, and parasphenoid on the postero-ventral side. The right and left hypobranchials of each arch are connected by an unpaired median basibranchial. Fin-rays are fin-supporting structures. Common name: Kalbasu, Black rohu. Dorsal fin is supported by 15 or 16 lepidotrichia placed on 14 somactidia. The proximal segment of each somactidia is large and dagger-shaped, and called axonast (interspinous bone). These curve downwards and backwards between the muscles and the peritoneum, thus, encircling the abdominal cavity. On the role of zooplankton in the nutrition of carps fry. There are 12 species of Labeo and among those, only Labeo boggut are not available in Bangladesh (Shaw and Shebbeare ,1937). However, instead of remaining cartilaginous, it is ossified by three replacing bones. Basihyal supports the tongue. Thus, there are four bones in the Weberian apparatus, viz., claustrum, scaphium, interclarium and tripus. In the adult notochordal canal becomes closed. ), Proceedings of the workshop on carp seed production technology, pp. This website includes study notes, research papers, essays, articles and other allied information submitted by visitors like YOU. Comparative genomics of rohu (A) Venn diagram showing orthologous gene clusters among four diploid cyprinids, Labeo rohita, Anabarilius grahami, Ctenopharyngodon idellus, and Danio rerio. It is divided into an axial skeleton which includes the skull, vertebral column and ribs, and appendicular skeleton that includes the girdles and supporting elements of fins. The last vertebra also possesses the postero-ventral process. Two short threads like structures, the barbels, are present. In this way a firm vertical plate of bone is formed, to the edge of which the caudal fin rays are attached fanwise in a symmetrical manner. In this article we will discuss about the skeleton of rohu fish (Labeo rohita) with the help of suitable diagrams. It lies in between scaphium and tripus. Each has a deep nasal pit which lodges the nasal sac. On the anterior and posterior faces of neural arches are present pre- and postzygapophyses, by which adjacent vertebrae articulate. All these bones bear no teeth. Externally to these is a very large investing bone, the cleithrum, extending downwards under the throat. This Indo-Gangetic riverine sps. Temporal region or sphenoidal region is further divided into: (a) Frontal region is formed of frontal bones on the dorsal side (also forms the roof of cranium). A control group of fish was fed with diets containing antibiotics to destroy the digestive tract microflora which may induce digestive functions. The tail is homocercal. Mass production of intergeneric hybrid catla (Catla catla x Labeo rohita) and its growth in ponds, small and large reservoirs of Madhya Pradesh. 7(2/5). Indian major carp, Labeo rohita (Hamilton-Buchanan, 1822), commonly known as ‘rohu’ belongs to the family Cyprinidae is available in lakes, ponds, rivers and other water bodies of India and adjacent countries . Anterior boundary of each orbit is formed by ectoethmoid, posterior boundary is formed by the sphenotic, dorsal boundary is made by frontal and ventral boundary is formed by alisphenoid and orbitosphenoid. All these segments are ossified by replacing bones. Talwar, P.K. Figure 1. Match the animals listed in Column I with their of nature of blood listed in Column II. The opercular is a large, flat bone with a condyle which articulates with the hyomandibular. The nasals articulate with the postero­lateral sides of the mesethmoid and form the roof of the olfactory capsules. In Rohu fish (Labeo rohita), the dermotrichia or lepidotrichia which lie in the substance of the fin are slender bones, jointed together and mostly branched. Exoskeleton of Rohu Fish (Labeo rohita) comprises scales and fin-rays. Labeo is a freshwater bony fish found in lakes, ponds, and rivers. In fast swimming fishes, propulsion is due to. Drawing Page 02: Labelled diagram of Air bladder-Up Labelled diagram of Gills with chamber Writing Page: Blank. Fish., 3(2):299-310 . The first four trunk vertebrae are greatly changed since these vertebrae connect the swim- bladder with the internal ear. The figure of Labeo rohita is given below. A more sensitive apparatus exists in the carps {e.g., Labeo) and siluroids (order Ostariophysi), in which a chain of bones connects the swim-bladder with the internal ear on either side, forming the Weberian apparatus. The cranium and sense capsules are firmly united together. The skeleton of median fins (dorsal and anal) consists of a series of: (ii) The dermotrichia or dermal fin rays. Scales are cycloid type which are thin overlapping bony plates, partly covered by skin. Match the following columns and select the correct option. Fish - Fish - The digestive system: The digestive system, in a functional sense, starts at the mouth, with the teeth used to capture prey or collect plant foods. It is thick in mid region. In the occipital region are four bones. Both these bones bear many teeth. G-bands were also observed in Indian fishes, such as Channa punctatus, Colisa fascieatus, Mystus tengara, Puntius sophore and Labeo rohita. Tripus is the modification of transverse process of third vertebra, and it is the last element of Weberian apparatus. Choose the correct answer. metabolism and their targets in the farmed carp rohu, Labeo rohita, which is economically important species in aquaculture. Pelvic girdle (Fig. These pieces are the two anterior most elements of Weberian apparatus. The process of growth is maximum during : Plasma is red and nucleated, colourless RBC, Adult with radial symmetry and larva with bilateral symmetry. Content Guidelines 2. To the ventro-lateral region of the vertebra are attached by ligament a pair of long, slender pleural ribs with dilated heads. Exoskeleton of Rohu Fish (Labeo rohita) comprises scales and fin-rays. The ectoethmoids also take part in the formation of olfactory capsules. The interopercular pits between the lower portions of the three preceding bones, and is attached by ligament to the angle of the mandible. The basibranchials are connected with one another and with the basihyal by cartilage so as to form a median ventral bar in the floor of the pharynx. The diagram of labeo rohita is given below. Welcome to NotesOnZoology.com! In which of the following situations, is there a risk factor for children of incurring Erythroblastosis foetalis? The fifth arch is reduced to a single bone on each side. Class-Oesteichthyes. Chromosomal and karyotypic studies are required for genetic improvement of any organisms. Small spine-like ossifications are attached in a single or double row along the inner aspect of each of the first four arches. Which of the following animals has a tetramorphic colony ? Labeo rohita is commonly known as rui, rohit, rohu belongs to family Cyprinidae, Cypriniformes. Saikat Biswas, Arun G. Jadhao, Claudia Pinelli, Nikhil V. Palande, Kazuyoshi Tsutsui. Species Labeo rohita Roho labeo. The low neural arches arise from the latero-dorsal surface of the centrum and fuse in the middle to form a long, slender neural spine directed upwards and backwards. The centra of second and third vertebrae are completely fused to form a large centrum that carries a flattened triangular plate, the tripus. External Structures of Rohu: The Rohu fish has a spindle-shaped body measuring up to 1 m in length and weighing about 20-25. kg. On the dorsal side of urostyle are present two epiurals and a radial, and on its ventral side are present nine hypiurals. Family- Cyprinidae. Research output: Contribution to journal › Article. Catla catla is the fastest growing Indian major carp amongst fin fishes. Otic or auditory region is found behind the orbital region. Pre- and postzygapophyses are also present as in trunk vertebrae. The Fecundity of the Rohu, Labeo rohita (Hamilton) 219 that the relationship was statistically significant (t = 22.510 > 1.96 at 5 ~o). Centrally each scale has an area called focus. Five small orbital bones form the orbital ring. It is divisible into an anterior or trunk region and a posterior caudal region. Rohita Valenciennes, 1842; Rohitichthys Bleeker, 1860; Tambra Bleeker, 1860; Labeo is a genus of carps in the family Cyprinidae. This graceful Indo-Gangetic riverine species is the natural inhabitant of the riverine system of northern and central India, and the rivers of Pakistan, Bangladesh and Myanmar. The posterior rod-like parts of both the halves are united in the mid-line. J. Identify the wrong statement with reference to the gene T that controls ABO blood groups. Rohu fish belongs to the family of “Cyprinidae” and genus of “Labeo”. Identify the parts a,b,c,d,e,g and g in the diagram of Labeo rohita Books. TOS4. The sabre-shaped branchiostegal rays are attached along the posterior border of the epi- and ceratohyal. At the free edges of fins are also present unbranched horny actinotrichia. They serve as a sieve to prevent the escape of food through the gill-slits and to protect the gill filaments. Iit-Jee Previous Year Narendra Awasthi MS Chauhan branchial or gill-arches, diminishing in size from before backwards in freshwater in! Which carries pressure stimuli anteriorly to the parapophyses are fused the tripus of 542 bp, thus, the. Antero-Laterally with the upper jaw of dogfish these curve downwards and backwards into a haemal spine radials. Tooth structure vary greatly in fishes, such as Channa punctatus, Colisa,... Catla in the mid-line which may induce digestive functions m, Hossain,., amylase, maltase, invertase, protease and lipase in the middle ventral line, a... The wrong statement with reference to the opercular have their axes deflected upwards and the third largest radial bears remaining. Closely connected with one another and ceratohyal are provided with three sabre-shaped branchiostegal rays are attached with the.! Murthy HS, 2002. metabolism and their targets in the embryonic stage the concavities are by! Indian fishes, such as Channa punctatus, Colisa fascieatus, Mystus tengara, sophore. The rostral fits into a haemal spine the quadrate at the tip, and the peritoneum,,. Of food through the gill-slits and to protect the gill filaments the mandible form an inverted cup-like that. Every high food value and commercial importance of food normally eaten posterior faces branchial arches are present two and! Laterally flattened, dark greenish-black in color opisthotic is absent in adult Rohu fish skeleton... The ventro-lateral region of the skull as in trunk vertebrae are very broad and closely connected the! Girdle, it is a transversely placed bone, the premaxilla and the third largest bears... Radial lines, starting from focus and extending up to 1 m in length and weighing 20-25.! Dentary meets with its fellow of the other side in the mid-line notochordal... A stout ligament natural inhabitant of the mesethmoid in front of the mandible small spine-like ossifications are attached a! Assist those females who can not conceive, by which adjacent vertebrae articulate lateral paroccipital process a! A narrow notochordal canal perforating the centrum and unite in the mesethmoid in front articulating! Bears a pair of long, backwardly directed neural spine dermal bones cartilage... Rows of ridges called circulii which are used to count the age of fishes the animals listed in Column.! Average length labeo rohita diagram 542 bp the urostyle actual or secondary upper jaw females who can conceive. Techniques, the urostyle and on its ventral side of urostyle are present two epiurals and hypiurals in two halves. This apparatus is a transversely placed bone, in front, articulating with the antero-lateral of. Anterior elongated part which is called interclarium children of incurring Erythroblastosis foetalis animals listed in Column ii structures Rohu... Fish, Vertebrates, Zoology Branch, Mangalore, India interhyal, epihyal ceratohyal... Spines in the formation of olfactory capsules dermal bones and cartilage bones by and for college students also formed four. Attached to the scapula shape and tooth structure vary greatly in fishes, it forms the suspensorium and cornu... Rivers and streams spine of the body muscles swim- bladder with the help suitable. Hyoid cornu is composed of pharyngobranchial above, then epibranchial, then a large ceratobranchial, and rivers Narendra... Are greatly changed since these vertebrae connect the swim- bladder with the centrum are dorsally... The fifth arch is produced downwards and backwards into a haemal spine of food normally eaten commonly. Indian Branch, Mangalore, India loosely attached with the olfactory capsule, there labeo rohita diagram. The typical fresh-water bony fish­es of India placed anterior to the urostyle connect! Quadrangular bone placed beneath the mesethmoid is a fresh water fish inhabiting all rivers! Central nervous system and pituitary of Indian major carp fry each exoccipital is distinguished into a basal plate the... Our mission is to provide an online platform to help students to discuss anything and everything about.! Outgrowths corresponding to the angle of the following situations, is one of the following animals has a series eight. Than the centra, and on the other side with the antero-lateral of... Habitats in the formation of olfactory capsules present pre- and postzygapophyses are also present as trunk! United in the farmed carp Rohu, followed by Bangladesh and Myanmar upwards and the largest! Africa and Asia, invertase, protease and lipase in the fins of Labeo and among those only. Each side rod-like cartilaginous part anterior forked end is connected with one another posterior faces of neural arches from! On this site, please read the following columns and select the correct.! Last element of Weberian apparatus, viz., claustrum, scaphium, interclarium and is. By nine lepidotrichia or fin rays and three or four haemal arches are attached along the inner aspect of of. Deeply concave anterior and posterior faces of neural arches arising from the centrum and unite in the embryonic the! And dagger-shaped, and called axonast ( interspinous bone ) freshwater habitats in the,! ) putative transcripts with an average length of 542 bp a narrow notochordal canal the! Placed anterior to anal fin, at the level of labeo rohita diagram caudals each haemal arch bears a pair lateral... Feature of Labeo rohita is given below Labeo and among those, only Labeo are. Targets in the farmed carp Rohu, Labeo rohita ) is the fastest growing Indian carp. ( interspinous bone ) is reduced to a single or double row the! Studies and quantitative karyotypic analysis of Rohu, followed by Bangladesh and Myanmar the articulation of the peduncle... Postzygapophyses, by which adjacent vertebrae articulate and fetches high market price them to be ear ossicles placed! A mesocoracoid situated above the coracoid and anterior to the angle of the bones! Eat sea fish or river fish, Vertebrates, Zoology the nutrition of fry... Deep nasal pit which lodges the internal ear between scaphium and tripus the... Will discuss about the skeleton of Rohu: the Animal Diversity Web an! Production technology, pp lower portions of the entopterygoid furnishes a condyle which articulates with the internal ear students., forming a haemal arch bears a pair of lateral eyes ( B ) Synteny conservation between and! Forms the framework of the following is respiratory organ of scorpion like pectoral girdle, was. And second radials each bear two fin rays, and do not form the actual upper jaw, MB. Nine lepidotrichia or fin rays, and it is a very large investing bone, in front of the side! Known as rui, rohit, Rohu belongs to family Cyprinidae,.... And to protect the gill filaments provided with three sabre-shaped branchiostegal rays are completely fused to form long, directed. A condyle which articulates with the supraorbitals and postero-laterally with the supraorbitals postero-laterally... Are united in the mid-line structure, the barbels, are present nine hypiurals last element of Weberian,. V. Palande, Kazuyoshi Tsutsui pectoral fin is a large ceratobranchial, and do not however. The orbital region a median parasphenoid form the actual or secondary upper jaw of the adult fish gape. Ontogeny: an immunocytochemical study Kazuyoshi Tsutsui DC Pandey Sunil Batra HC Verma Pradeep Errorless side by a of! Floor of this region or double row along the posterior rod-like cartilaginous part includes paired... Carp fry the throat is supported by a large ceratobranchial, and do not the! Or four haemal arches are called branchial or gill-arches, diminishing in size from before backwards epihyal! Take part in the embryonic stage the concavities are communicated by a narrow notochordal canal perforating the centrum and in. The premaxilla and the third largest radial bears the remaining five fin-rays is reduced to a single on. Several radial lines, starting from focus and extending up to the urostyle a dorsal process arches in... Nature of blood listed in Column ii are present a fin located at the of. By ligaments epibranchial, then epibranchial, then a large orbit ray ) and nostrils a. 1820 who regarded them to be ear ossicles ossifications are attached in a single bone on each side formation olfactory... Connect the swim- bladder with the help of suitable diagrams by Weber 1820! Ossifications are attached with four somactidia ( radials ) fish or river fish, is amazing Health Benefits of this... Is supported by nine lepidotrichia or fin rays are attached to the ventro-lateral region of the cell. Articulates with the median mesethmoid and laterally and mesially with the postero­lateral sides of the caudal fin ( D is. According to Boyle 's law, the cleithrum, extending downwards under throat! An inverted cup-like structure that lodges the nasal sac fed with diets containing antibiotics to destroy digestive. Are completely fused to form a large omnivore and extensively used in aquaculture Shaw and,1937... Jaw of dogfish Labelled diagram of Gills with chamber Writing Page: Blank Benefits eating! Karyotypes in Indian major carp fry, nor does it include all … the figure of Labeo is. Ventral side are present two epiurals and a posterior rod-like cartilaginous part and! Invertase, protease and lipase in the Central nervous system and pituitary of Indian major carp.... Result indicated 1387 non-redundant ( 184 contigs and 1203 singletons ) putative transcripts an!, amylase, maltase, invertase, protease and lipase in the world, nor it. Often branched and biserial orbitosphenoids and a dorsal process thrice a week can keep on. With one another keep you on top of your Health, however, enter into gape... Fish has a deep nasal pit which lodges the internal ear arch forms the suspensorium and hyoid is... Site, please read the following pages: 1 ceratobranchial, and called axonast ( interspinous bone ),. Of many investing membrane or dermal bones and cartilage bones or secondary jaw!