Fishes of the Western North Atlantic: Sawfishes, guitarfishes, skates and raysJohn Tee-Van Sears Foundation for Marine Research, Yale Univ., 1948 |
Dall'interno del libro
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Pagina 93
... rear end of the first dorsal base is considerably posterior to the rear ends of the pelvic fin bases or is level with or even anterior to the latter.53 All of the four species of Torpedo known from the Atlantic ( T. torpedo Linnaeus ...
... rear end of the first dorsal base is considerably posterior to the rear ends of the pelvic fin bases or is level with or even anterior to the latter.53 All of the four species of Torpedo known from the Atlantic ( T. torpedo Linnaeus ...
Pagina 94
... rear parts of pectorals without spinous papillae , the skin naked there , as elsewhere . 2a . Rear end of base of first dorsal considerably posterior to rear ends of pelvic fin bases . 3a . Dorsal surface of disc with five ...
... rear parts of pectorals without spinous papillae , the skin naked there , as elsewhere . 2a . Rear end of base of first dorsal considerably posterior to rear ends of pelvic fin bases . 3a . Dorsal surface of disc with five ...
Pagina 153
... rear end of second dorsal fin only about 2/3 as long as distance from axils of pelvics to rear margins of orbits ; distance from origin of first dorsal to tip of tail considerably shorter than that from level of rear margins of orbits ...
... rear end of second dorsal fin only about 2/3 as long as distance from axils of pelvics to rear margins of orbits ; distance from origin of first dorsal to tip of tail considerably shorter than that from level of rear margins of orbits ...
Sommario
SAWFISHES GUITARFISHES SKATES and RAYS | 1 |
Genus Zapteryx | 74 |
Suborder Myliobatoidea | 331 |
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Fishes of the Western North Atlantic: Sawfishes, guitarfishes, skates and rays John Tee-Van Visualizzazione estratti - 1953 |
Parole e frasi comuni
Acad Amer batoids Bigelow and Schroeder biol Brazil breadth Breder Bull Carolina cartilage caudal fin center of cloaca Chesapeake Bay claspers Coast color Comp concave Copeia Dasyatis Dermal denticles descr distance between inner dorsal fin embryos Evermann exposed nostrils eyes fathoms female Florida Fowler front of mouth front of orbits Garman genus gill openings Gulf Gulf of Maine Harv Hist inner ends Interspace Jersey Jordan Lacépède length of base listed lobe long as distance Lower surface mature males median Müller and Henle nasal curtain pelvic fins Philad Poiss posterior margin prickles Proc Raja Rays rearward Rio de Janeiro rostral rostral cartilage rounded Sawfishes side Skates spiracles Study Material tail spine teeth thorns tip of snout tip of tail Torpedo transverse type species U. S. Bur U. S. Comm U. S. nat upper surface Woods Hole Zool