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
Risultati 1-3 di 83
Pagina 8
... pectorals may be of some aid in their swimming . " The Torpedoes swim chiefly with the posterior part of the trunk ... pectorals from front to rear . Each undulation originates as an elevation of the anterior margin of the pectoral ...
... pectorals may be of some aid in their swimming . " The Torpedoes swim chiefly with the posterior part of the trunk ... pectorals from front to rear . Each undulation originates as an elevation of the anterior margin of the pectoral ...
Pagina 257
... pectorals on newly - hatched specimens but becom- ing weakly concave with growth at level of eyes and spiracles and about equally so in both sexes to maturity ; 107 posterior corners much more broadly rounded than outer corners . Axis ...
... pectorals on newly - hatched specimens but becom- ing weakly concave with growth at level of eyes and spiracles and about equally so in both sexes to maturity ; 107 posterior corners much more broadly rounded than outer corners . Axis ...
Pagina 331
... pectoral , inner edge joined to side of tail nearly to tip . Anterior rays of pectorals extending forward to a little posterior to base of ter- minal expansion of snout ; firm rostral cartilage reaching about to base of terminal ...
... pectoral , inner edge joined to side of tail nearly to tip . Anterior rays of pectorals extending forward to a little posterior to base of ter- minal expansion of snout ; firm rostral cartilage reaching about to base of terminal ...
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