Fishes of the Western North Atlantic: Sawfishes, guitarfishes, skates and raysJohn Tee-Van Sears Foundation for Marine Research, Yale Univ., 1948 |
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Pagina 164
John Tee-Van. larger or smaller.81 Lower surface smooth , except along anterior part of tail where the lateral bands of prickles encroach somewhat on the lower surface . A comparison of larger with smaller specimens shows that the total ...
John Tee-Van. larger or smaller.81 Lower surface smooth , except along anterior part of tail where the lateral bands of prickles encroach somewhat on the lower surface . A comparison of larger with smaller specimens shows that the total ...
Pagina 218
... lower surface are marked by conspicuous black dots and dashes ( not so in R. spinicauda or in any other Raja of the western North Atlantic ) . Newly hatched specimens of R. laevis , on which the mucous pores are not yet pig- mented ( p ...
... lower surface are marked by conspicuous black dots and dashes ( not so in R. spinicauda or in any other Raja of the western North Atlantic ) . Newly hatched specimens of R. laevis , on which the mucous pores are not yet pig- mented ( p ...
Pagina 340
... lower surface of the tail , with or without a fold or ridge above ( genus Dasyatis ) . I a . No spine on tail . Key to Genera Urogymnus Müller and Henle 1837.27 Australia , East Indies , Indian Ocean , Red Sea . Ib . Upper surface of ...
... lower surface of the tail , with or without a fold or ridge above ( genus Dasyatis ) . I a . No spine on tail . Key to Genera Urogymnus Müller and Henle 1837.27 Australia , East Indies , Indian Ocean , Red Sea . Ib . Upper surface of ...
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 |
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