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The black endostyle is visible below the oral siphon, as well as a mid-dorsal black line below the atrial siphon. [11] Clavelina ossipandae is also recognizable by the black markings on its white anterior portion (a central dot between the oral and atrial siphons, surrounded by two lateral bands), uniquely distinctive in the genus Clavelina.
The endoskeleton of the fish is made up of two main components: the axial skeleton consisting of the skull and vertebral column, and the appendicular skeleton supporting the fins. [7] The fins are made up of bony fin rays and, except for the caudal fin, have no direct connection with the spine.
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The spotted ratfish has a very distinct appearance compared to unrelated fish species. The female is up to 97 cm (38 in) long, much bigger than the male. These fish have a smooth and scaleless skin that is a silvery-bronze color, often with sparkling shades of gold, blue, and green. The speckled white spots along their backs contribute to their ...
Chondrichthyes (/ k ɒ n ˈ d r ɪ k θ i iː z /; from Ancient Greek χόνδρος (khóndros) 'cartilage' and ἰχθύς (ikhthús) 'fish') is a class of jawed fish that contains the cartilaginous fish or chondrichthyans, which all have skeletons primarily composed of cartilage.
Mustelus palumbes J. L. B. Smith, 1957 (White-spotted smooth-hound) Mustelus punctulatus A. Risso, 1827 (Black-spotted smooth-hound) Mustelus ravidus W. T. White & Last, 2006 (Australian grey smooth-hound) Mustelus schmitti S. Springer, 1939 (Narrow-nose smooth-hound) Mustelus sinusmexicanus Heemstra, 1997 (Gulf smooth-hound)
Fish bone is any bony tissue in a fish, although in common usage the term refers specifically to delicate parts of the non-vertebral skeleton of such as ribs, fin spines and intramuscular bones. Not all fish have fish bones in this sense; for instance, eels and anglerfish do not possess bones other than the cranium and the vertebrae.
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