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
Risultati 1-3 di 93
Pagina 16
... rostral teeth of the Saw Sharks ( Pristiophoroidea ) but with the dorsal fin spines of Heterodontus and of some squaloid Sharks as well ; rostral teeth deeply and firmly embedded in deep sockets of the hardened cartilage of the saw in ...
... rostral teeth of the Saw Sharks ( Pristiophoroidea ) but with the dorsal fin spines of Heterodontus and of some squaloid Sharks as well ; rostral teeth deeply and firmly embedded in deep sockets of the hardened cartilage of the saw in ...
Pagina 53
... rostral cartilage widening rather noticeably toward its tip . Specimens of this sort which have the upper surface of the trunk and tail densely freckled with a large number of small pale dots were the basis for the species lentiginosus ...
... rostral cartilage widening rather noticeably toward its tip . Specimens of this sort which have the upper surface of the trunk and tail densely freckled with a large number of small pale dots were the basis for the species lentiginosus ...
Pagina 54
... rostral ridges . But we are not able to judge from the brief description ( p . 73 ) how it is related to these species in other respects . Provisional Key to North Atlantic , Western South Atlantic , and Tropical West African Species 1a ...
... rostral ridges . But we are not able to judge from the brief description ( p . 73 ) how it is related to these species in other respects . Provisional Key to North Atlantic , Western South Atlantic , and Tropical West African Species 1a ...
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