Fishes of the Western North Atlantic: Sawfishes, guitarfishes, skates and raysJohn Tee-Van Sears Foundation for Marine Research, Yale Univ., 1953 |
Dall'interno del libro
Risultati 1-3 di 86
Pagina 13
... pelvics than to tip of tail ; a well developed caudal fin ; pelvics with the outer margins convex , or at least not notched ; their unpaired fins , like those of the Sawfishes and Torpedoes , have horny rays as well as cartilaginous ...
... pelvics than to tip of tail ; a well developed caudal fin ; pelvics with the outer margins convex , or at least not notched ; their unpaired fins , like those of the Sawfishes and Torpedoes , have horny rays as well as cartilaginous ...
Pagina 44
... pelvics ; origin of first dorsal over or a little anterior to bases of pelvics . Rhynchobatidae , p . 44 . Ib . Caudal fin not bilobed , its axis bent upward only very little , if at all ; posterior edges of pectorals extending rearward ...
... pelvics ; origin of first dorsal over or a little anterior to bases of pelvics . Rhynchobatidae , p . 44 . Ib . Caudal fin not bilobed , its axis bent upward only very little , if at all ; posterior edges of pectorals extending rearward ...
Pagina 148
... pelvics as long as distance from origin of pelvics to rear tip , or longer . Breviraja plutonia ( Garman ) 1881 , p . 297 . 6b . Thorns on shoulders ( 0-2 ) , along midline of disc , and on tail , small and inconspicuous ; anterior ...
... pelvics as long as distance from origin of pelvics to rear tip , or longer . Breviraja plutonia ( Garman ) 1881 , p . 297 . 6b . Thorns on shoulders ( 0-2 ) , along midline of disc , and on tail , small and inconspicuous ; anterior ...
Sommario
SAWFISHES GUITARFISHES SKATES and RAYS | 1 |
Suborder Myliobatoidea | 331 |
Dasyatis say | 378 |
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Fishes of the Western North Atlantic: Sawfishes, guitarfishes, skates and rays John Tee-Van Visualizzazione estratti - 1953 |
Fishes of the Western North Atlantic: Sawfishes, guitarfishes, skates and rays John Tee-Van Visualizzazione estratti - 1948 |
Parole e frasi comuni
Acad Amer axils of pectorals batoids Bigelow and Schroeder biol Brazil breadth 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 Jersey Jordan Lacépède length of base Linnaeus listed lobe long as distance Lower surface mature males Müller and Henle Narcine nasal curtain pectoral fins pelvic fins Philad Poiss posterior margin prickles Proc Raja rearward Rio de Janeiro rostral rounded Sawfishes side Skates spiracles Study Material tail spine teeth thorns tip of snout tip of tail Torpedo transverse Trygon type species U. S. Bur U. S. Comm U. S. nat upper surface Woods Hole Zool