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 78
... rounded denticles , a larger rounded tubercle ( similarly fluted ) emerging from the tip ; between first and second dorsals , two or three similar but smaller prominences , with tubercle at tip ; two series of tubercles on each shoulder ...
... rounded denticles , a larger rounded tubercle ( similarly fluted ) emerging from the tip ; between first and second dorsals , two or three similar but smaller prominences , with tubercle at tip ; two series of tubercles on each shoulder ...
Pagina 130
... rounded above , moderately flattened below ; sides of tail evenly rounded in small specimens ( at least in most cases ) , but each with a low dermal ridge in adults from about opposite origin of first dorsal to origin of caudal . Snout ...
... rounded above , moderately flattened below ; sides of tail evenly rounded in small specimens ( at least in most cases ) , but each with a low dermal ridge in adults from about opposite origin of first dorsal to origin of caudal . Snout ...
Pagina 507
... rounded longitudinal ridge extending rearward a short distance from opposite free edge of transverse curtain . Floor of mouth with a corresponding groove , narrowest anteriorly , broader posteriorly , reaching to point about opposite ...
... rounded longitudinal ridge extending rearward a short distance from opposite free edge of transverse curtain . Floor of mouth with a corresponding groove , narrowest anteriorly , broader posteriorly , reaching to point about opposite ...
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