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 85
Pagina 266
... tip of snout ) . Description . Proportional dimensions in per cent of total length . Female , 424 mm , and male , 520 mm , from Emerald Bank , off Nova Scotia ( Harv . Mus . Comp . Zool . , No. 33919 ) . Disc : extreme breadth 62.0 ...
... tip of snout ) . Description . Proportional dimensions in per cent of total length . Female , 424 mm , and male , 520 mm , from Emerald Bank , off Nova Scotia ( Harv . Mus . Comp . Zool . , No. 33919 ) . Disc : extreme breadth 62.0 ...
Pagina 277
... snout ( distance from tip of snout to eye about 1 / 4-1 / 3 the width of disc in teevani , but only about 1 in laevis ) and by the fact that the anterior margin of the pelvic fin is longer than the distance from its own origin to the rear ...
... snout ( distance from tip of snout to eye about 1 / 4-1 / 3 the width of disc in teevani , but only about 1 in laevis ) and by the fact that the anterior margin of the pelvic fin is longer than the distance from its own origin to the rear ...
Pagina 325
... tip of snout to center of cloaca 48.2 ; from center of cloaca to Ist dorsal 36.7 ; to tip of tail 51.8 ; from base of 2nd dorsal to tip of caudal 3.2 . Interspace between : 1st and 2nd dorsals o.o. Disc including lateral lobes about 1.4 ...
... tip of snout to center of cloaca 48.2 ; from center of cloaca to Ist dorsal 36.7 ; to tip of tail 51.8 ; from base of 2nd dorsal to tip of caudal 3.2 . Interspace between : 1st and 2nd dorsals o.o. Disc including lateral lobes about 1.4 ...
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 - 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