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 59
... Interspace between rear end of base of second dorsal and upper origin of caudal about 1.0-1.2 times as long as base ... interspace between dorsals ; lower posterior contour well rounded , without distinct lower lobe ; height of caudal ...
... Interspace between rear end of base of second dorsal and upper origin of caudal about 1.0-1.2 times as long as base ... interspace between dorsals ; lower posterior contour well rounded , without distinct lower lobe ; height of caudal ...
Pagina 79
... interspace between the two dorsals . Interspace between first and second dorsals about 1.5-1.6 times as long as base of first dorsal . Interspace between base of second dorsal and origin of caudal about as long as base of second dorsal ...
... interspace between the two dorsals . Interspace between first and second dorsals about 1.5-1.6 times as long as base of first dorsal . Interspace between base of second dorsal and origin of caudal about as long as base of second dorsal ...
Pagina 149
... interspace ; dorsal surface of disc not freckled with many small dark dots . Breviraja spinosa Bigelow and Schroeder 1950 , p . 306 . Iob . Snout anterior to orbits about 3.3 times as long as dis- tance between orbits ; first and second ...
... interspace ; dorsal surface of disc not freckled with many small dark dots . Breviraja spinosa Bigelow and Schroeder 1950 , p . 306 . Iob . Snout anterior to orbits about 3.3 times as long as dis- tance between orbits ; first and second ...
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