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
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Pagina 92
... smooth or are rimmed with short ten- tacular structures or papillae.52 But it is not possible to draw any sharp line even between those species in which the spiracles are the most evidently papillate and those in which they are ...
... smooth or are rimmed with short ten- tacular structures or papillae.52 But it is not possible to draw any sharp line even between those species in which the spiracles are the most evidently papillate and those in which they are ...
Pagina 93
... smooth or are rimmed with short ten- tacular structures or papillae.52 But it is not possible to draw any sharp line even between those species in which the spiracles are the most evidently papillate and those in which they are ...
... smooth or are rimmed with short ten- tacular structures or papillae.52 But it is not possible to draw any sharp line even between those species in which the spiracles are the most evidently papillate and those in which they are ...
Pagina 274
... smooth ; dorsals prickly ; caudal membrane smooth or with a few minute prickles . Alar spines of sexually mature males in 3-4 rows . Lower surface of disc smooth , but tail with a narrow prickly band along either margin rearward from ...
... smooth ; dorsals prickly ; caudal membrane smooth or with a few minute prickles . Alar spines of sexually mature males in 3-4 rows . Lower surface of disc smooth , but tail with a narrow prickly band along either margin rearward from ...
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 - 1953 |
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