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
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Pagina 208
... Specimens of all sizes usually with 2-4 large thorns on each shoulder , one close to inner end of spiracle and another close in front of orbit ; one on posterior part of orbital ridge and 1-3 smaller ones on some specimens ; a varying ...
... Specimens of all sizes usually with 2-4 large thorns on each shoulder , one close to inner end of spiracle and another close in front of orbit ; one on posterior part of orbital ridge and 1-3 smaller ones on some specimens ; a varying ...
Pagina 288
... specimens ; a little longer relatively in smaller specimens . Upper surface around posterior margins of pectorals and on tip of snout smooth , disc and tail rough elsewhere with small and sharp close - set prickles , many of them ...
... specimens ; a little longer relatively in smaller specimens . Upper surface around posterior margins of pectorals and on tip of snout smooth , disc and tail rough elsewhere with small and sharp close - set prickles , many of them ...
Pagina 458
... specimens , but others with a pale blotch on its anterior margin ; upper surface of tail dark brown or black posteriorly , sometimes with one or two pale blotches anterior to dorsal fin . Lower surfaces of disc and pelvics plain white ...
... specimens , but others with a pale blotch on its anterior margin ; upper surface of tail dark brown or black posteriorly , sometimes with one or two pale blotches anterior to dorsal fin . Lower surfaces of disc and pelvics plain white ...
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