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Acanthobothrium Dasi
''Acanthobothrium dasi'' is a species of parasitic onchobothriid tapeworms first found in the whiptail stingray, ''Dasyatis brevis The diamond stingray (''Dasyatis dipterura'') is a species of stingray in the family Dasyatidae. It is found in the coastal waters of the eastern Pacific Ocean from southern California to northern Chile, and around the Galápagos and Hawaiian I ...'', in the Gulf of California. It is relatively small, possesses few segments, relatively few testes, and shows asymmetrical ovaries. It also differs from its cogenerate species by its hook size and length of its hook prongs; cirrus sac size; the position of its genital pore, the number of testes columns that are anterior to the cirrus sac; as well as a number of postvaginal testes. References Further reading *Reyda, Florian B., and Janine N. Caira. "Five new species of ''Acanthobothrium'' (Cestoda: Tetraphyllidea) from ''Himantura uarnacoides'' (Myliobatiformes: Dasyatidae) in Malaysian Borneo." ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dasyatis Brevis
The diamond stingray (''Dasyatis dipterura'') is a species of stingray in the family Dasyatidae. It is found in the coastal waters of the eastern Pacific Ocean from southern California to northern Chile, and around the Galápagos and Hawaiian Islands. This bottom-dweller generally inhabits sandy or muddy flats near rocky reefs and kelp forests, to a depth of , though off Hawaii it may range considerably deeper. As its common name suggests, this species has an angular, diamond-shaped pectoral fin disc that is plain brown or gray above, with rows of tubercles along the midline and on the "shoulders". The long, whip-like tail has both dorsal and ventral fin folds, which distinguish this ray from the closely similar longtail stingray (''D. longa''). It typically grows to across. When searching for food, diamond stingrays may form groups of up to hundreds of individuals. It is most active at night and preys mainly on burrowing invertebrates and small bony fishes, which are ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
