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 75
Pagina 170
... exposed nostrils . Orbit 1.2-1.4 times as long as spiracle ; distance between orbits about 1.2 times as great as length of orbit . Distance between first gill openings about 1.9-2.1 times as long as distance between exposed nostrils ...
... exposed nostrils . Orbit 1.2-1.4 times as long as spiracle ; distance between orbits about 1.2 times as great as length of orbit . Distance between first gill openings about 1.9-2.1 times as long as distance between exposed nostrils ...
Pagina 330
... exposed nostrils . Orbit about 1.1 times as long as distance between orbits , and 2.2–2.9 times as long as spiracle , which is noticeably small . Gill openings minute ; first about 1 as long as breadth of mouth ; fifth about 2/3 as long ...
... exposed nostrils . Orbit about 1.1 times as long as distance between orbits , and 2.2–2.9 times as long as spiracle , which is noticeably small . Gill openings minute ; first about 1 as long as breadth of mouth ; fifth about 2/3 as long ...
Pagina 438
... exposed nostrils ; its origin close behind rear limits of pelvics . freminvillii Lesueur 1824 , p . 438 . 1 b . Base of dorsal fin not more than -3 ( 62-77 % ) as long as distance between exposed nostrils ; its origin posterior to rear ...
... exposed nostrils ; its origin close behind rear limits of pelvics . freminvillii Lesueur 1824 , p . 438 . 1 b . Base of dorsal fin not more than -3 ( 62-77 % ) as long as distance between exposed nostrils ; its origin posterior to rear ...
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