|
Platyrhinidae
The Platyrhinidae are a family (biology), family of Batoidea, rays, commonly known as thornbacks due to their dorsal rows of large thorns. They resemble guitarfishes in shape. Though traditionally classified with stingrays, molecular evidence suggests they are more closely related to electric rays in the order Torpediniformes. Genera and species * Genus ''Platyrhina'' Johannes Peter Müller, J. P. Müller & Friedrich Gustav Jakob Henle, Henle, 1838 ** ''Platyrhina hyugaensis'' Yukio Iwatsuki, Iwatsuki, Kei Miyamoto, Miyamoto & Kazuhiro Nakaya, Nakaya, 2011 (Hyuga fanray) ** ''Platyrhina sinensis'' Marcus Elieser Bloch, Bloch & Johann Gottlob Schneider, J. G. Schneider, 1801 (fanray) ** ''Platyrhina tangi'' Yukio Iwatsuki, Iwatsuki, Zhang Jie (ichthyologist), J. Zhang & Kazuhiro Nakaya, Nakaya, 2011 (yellow-spotted fanray) * Genus ''Platyrhinoidis'' Samuel Garman, Garman 1881 ** ''Platyrhinoidis triseriata'' David Starr Jordan, D. S. Jordan & Charles Henry Gilbert, Gilbert, 1880 (t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fanray
The fanray (''Platyrhina sinensis'') is a species of Batoidea, ray in the family (biology), family Platyrhinidae that lives in the western Pacific Ocean. It typically grows to a length of and a weight of , with a brown upperside and a white underside. It eats fish and crustaceans and has poor mobility. Males live to age five and females to age twelve, with both sexes maturing between two and five years. The species is found in China, Japan, Taiwan, Korea, Vietnam, and possibly Indonesia, in waters shallower than . It is probable that its population is declining due to being caught as a bycatch. Description The fanray grows to a maximum known length of , but most specimens are long and weigh . Its body is flat throughout and shaped like a fan. The species' upperside is brown in color, its underside white, and the edge of its body yellow. It has wide nostrils, small eyes, a short snout, and a transversal through its mouth splitting it. It has multiple small teeth and thorn-like ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platyrhina Sinensis
The fanray (''Platyrhina sinensis'') is a species of ray in the family Platyrhinidae that lives in the western Pacific Ocean. It typically grows to a length of and a weight of , with a brown upperside and a white underside. It eats fish and crustaceans and has poor mobility. Males live to age five and females to age twelve, with both sexes maturing between two and five years. The species is found in China, Japan, Taiwan, Korea, Vietnam, and possibly Indonesia, in waters shallower than . It is probable that its population is declining due to being caught as a bycatch. Description The fanray grows to a maximum known length of , but most specimens are long and weigh . Its body is flat throughout and shaped like a fan. The species' upperside is brown in color, its underside white, and the edge of its body yellow. It has wide nostrils, small eyes, a short snout, and a transversal through its mouth splitting it. It has multiple small teeth and thorn-like scales on the upperside of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platyrhina
''Platyrhina'' is a genus of rays in the family Platyrhinidae, containing three species. They are native to the warm-temperate to tropical marine waters in the western Pacific Ocean. They are little-known bottom-dwellers that feed on small invertebrates such as crustaceans, molluscs, and worms. The fanray is found inshore to a depth of 60 m on rocky or rock sandy bottoms. ''Platyrhina'' species have rounded, heart-shaped pectoral fin discs with short, blunt snouts. Their tails are long and shark-like, slightly flattened with lateral ridges. The two dorsal fins and the caudal fin are large and rounded; the caudal fin lacks a lower lobe. The teeth are small and arranged in pavement-like rows for crushing shelled prey. Their bodies are covered with minute dermal denticles; also, several rows of denticles are located inside the buccopharyngeal cavity. The shape of these denticles in ''Platyrhina'' and the similar '' Platyrhinoidis'' distinguish them from all other guitarfish species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platyrhina Hyugaensis
''Platyrhina'' is a genus of rays in the family Platyrhinidae, containing three species. They are native to the warm-temperate to tropical marine waters in the western Pacific Ocean. They are little-known bottom-dwellers that feed on small invertebrates such as crustaceans, molluscs, and worms. The fanray is found inshore to a depth of 60 m on rocky or rock sandy bottoms. ''Platyrhina'' species have rounded, heart-shaped pectoral fin discs with short, blunt snouts. Their tails are long and shark-like, slightly flattened with lateral ridges. The two dorsal fins and the caudal fin are large and rounded; the caudal fin lacks a lower lobe. The teeth are small and arranged in pavement-like rows for crushing shelled prey. Their bodies are covered with minute dermal denticles; also, several rows of denticles are located inside the buccopharyngeal cavity. The shape of these denticles in ''Platyrhina'' and the similar '' Platyrhinoidis'' distinguish them from all other guitarfish species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platyrhina Tangi
The yellow-spotted fanray (''Platyrhina tangi'') is a species of electric ray in the family Platyrhinidae. It lives in various countries in the northwestern Pacific Ocean and grows to a total length of about for males and for females. Taxonomy and etymology The yellow-spotted fanray was described by Y. Iwatsuki, J. Zhang and K. Nakaya in 2011 as one of the three species in the genus ''Platyrhina''. It is classified in the genus due to the patches of yellow on its central disc and thorns close to its orbit. Its specific name ''tangi'' is named after D.-S. Tang, a Chinese ichthyologist. Its holotype is located in Miyazaki, Japan. The species' closest relative is ''Platyrhina hyugaensis'', the Hyuga fanray, due to the similarity of the two rays' thorn patterns. Description The yellow-spotted fanray is primarily brown on its upper side, ranging from a darker to a grayer shade, and white on its underside, often containing patches of grey. Unlike the rest of its disk, the thorns at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platyrhinoidis Triseriata
The thornback guitarfish (''Platyrhinoidis triseriata'') is a species of ray in the family Platyrhinidae, and the only member of its genus. Despite its name and appearance, it is more closely related to electric rays than to true guitarfishes of the family Rhinobatidae. This species ranges from Tomales Bay to the Gulf of California, generally in inshore waters no deeper than . It can be found on or buried in sand or mud, or in and near kelp beds. Reaching in length, the thornback guitarfish has a heart-shaped pectoral fin disc and a long, robust tail bearing two posteriorly positioned dorsal fins and a well-developed caudal fin. The most distinctive traits of this plain-colored ray are the three parallel rows of large, hooked thorns that start from the middle of the back and run onto the tail. Encountered singly or in groups, the thornback guitarfish feeds on small, benthic invertebrates and bony fishes. It is aplacental viviparous, with the developing young drawing susten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platyrhinoidis
The thornback guitarfish (''Platyrhinoidis triseriata'') is a species of ray in the family Platyrhinidae, and the only member of its genus. Despite its name and appearance, it is more closely related to electric rays than to true guitarfishes of the family Rhinobatidae. This species ranges from Tomales Bay to the Gulf of California, generally in inshore waters no deeper than . It can be found on or buried in sand or mud, or in and near kelp beds. Reaching in length, the thornback guitarfish has a heart-shaped pectoral fin disc and a long, robust tail bearing two posteriorly positioned dorsal fins and a well-developed caudal fin. The most distinctive traits of this plain-colored ray are the three parallel rows of large, hooked thorns that start from the middle of the back and run onto the tail. Encountered singly or in groups, the thornback guitarfish feeds on small, benthic invertebrates and bony fishes. It is aplacental viviparous, with the developing young drawing sustenance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thornback Guitarfish
The thornback guitarfish (''Platyrhinoidis triseriata'') is a species of ray in the family Platyrhinidae, and the only member of its genus. Despite its name and appearance, it is more closely related to electric rays than to true guitarfishes of the family Rhinobatidae. This species ranges from Tomales Bay to the Gulf of California, generally in inshore waters no deeper than . It can be found on or buried in sand or mud, or in and near kelp beds. Reaching in length, the thornback guitarfish has a heart-shaped pectoral fin disc and a long, robust tail bearing two posteriorly positioned dorsal fins and a well-developed caudal fin. The most distinctive traits of this plain-colored ray are the three parallel rows of large, hooked thorns that start from the middle of the back and run onto the tail. Encountered singly or in groups, the thornback guitarfish feeds on small, benthic invertebrates and bony fishes. It is aplacental viviparous, with the developing young drawing sustenance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myliobatiformes
Myliobatiformes () is one of the four orders of batoids, cartilaginous fishes related to sharks. They were formerly included in the order Rajiformes, but more recent phylogenetic studies have shown the myliobatiforms to be a monophyletic group, and its more derived members evolved their highly flattened shapes independently of the skates. Classification Nelson's ''Fishes of the World'' arranges the Myliobatiformes as: *Suborder Platyrhinoidei **Family Platyrhinidae (thornbacks) *Suborder Zanobatoidei **Family Zanobatidae (panrays) *Suborder Myliobatoidei ( stingrays) **Superfamily Hexatrygonoidea ***Family Hexatrygonidae (sixgill stingray) **Superfamily Urolophoidea ***Family Plesiobatidae (deepwater stingray) ***Family Urolophidae (round stingrays) **Superfamily Urotrygonoidea ***Family Urotrygonidae (American round stingrays) **Superfamily Dasyatoidea ***Family Dasyatidae (whiptail stingrays) ***Family Potamotrygonidae (river stingrays) ***Family Gymnuridae The bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batoidea
Batoidea is a superorder of cartilaginous fishes, commonly known as rays. They and their close relatives, the sharks, comprise the subclass Elasmobranchii. Rays are the largest group of cartilaginous fishes, with well over 600 species in 26 families. Rays are distinguished by their flattened bodies, enlarged pectoral fins that are fused to the head, and gill slits that are placed on their ventral surfaces. Anatomy Batoids are flat-bodied, and, like sharks, are cartilaginous fish, meaning they have a boneless skeleton made of a tough, elastic cartilage. Most batoids have five ventral slot-like body openings called gill slits that lead from the gills, but the Hexatrygonidae have six. Batoid gill slits lie under the pectoral fins on the underside, whereas a shark's are on the sides of the head. Most batoids have a flat, disk-like body, with the exception of the guitarfishes and sawfishes, while most sharks have a spindle-shaped body. Many species of batoid have developed their pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Henry Gilbert
Charles Henry Gilbert (December 5, 1859 in Rockford, Illinois – April 20, 1928 in Palo Alto, California) was a pioneer ichthyologist and Fisheries science, fishery biologist of particular significance to natural history of the western United States. He collected and studied fishes from Central America north to Alaska and described many new species. Later he became an expert on Pacific salmon and was a noted conservation movement, conservationist of the Pacific Northwest. He is considered by many as the intellectual founder of American fisheries biology. He was one of the 22 "pioneer professors" (founding faculty) of Stanford University. Early life and education Born in Rockford, Illinois, Gilbert spent his early years in Indianapolis, Indiana, where he came under the influence of his high school teacher, David Starr Jordan (1851‒1931). When Jordan became Professor of Natural History at Butler University in Indianapolis, Gilbert followed and received his B.A. degree in 187 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samuel Garman
Samuel Walton Garman (June 5, 1843 – September 30, 1927), or "Garmann" as he sometimes styled himself, was a naturalist/zoologist from Pennsylvania. He became noted as an ichthyologist and herpetologist. Biography Garman was born in Indiana County, Pennsylvania, on 5 June 1843. In 1868 he joined an expedition to the American West with John Wesley Powell. He graduated from the Illinois State Normal University in 1870, and for the following year was principal of the Mississippi State Normal School. In 1871, he became professor of natural sciences in Ferry Hall Seminary, Lake Forest, Illinois, and a year later became a special pupil of Louis Agassiz. He was a friend and regular correspondent of the naturalist Edward Drinker Cope, and in 1872 accompanied him on a fossil hunting trip to Wyoming. In 1870 he became assistant director of herpetology and ichthyology at Harvard's Museum of Comparative Zoology. His work was mostly in the classification of fish, especially sharks, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2.jpg "Click for more on -> Batoidea")
