Fishes of the Western North Atlantic: Sawfishes, guitarfishes, skates and raysJohn Tee-Van Sears Foundation for Marine Research, Yale Univ., 1953 |
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Pagina 341
... lower surface of the tail , with or without a fold or ridge above ( genus Dasyatis ) . I a . No spine on tail . Key to Genera Urogymnus Müller and Henle 1837.27 Australia , East Indies , Indian Ocean , Red Sea . Ib . Upper surface of ...
... lower surface of the tail , with or without a fold or ridge above ( genus Dasyatis ) . I a . No spine on tail . Key to Genera Urogymnus Müller and Henle 1837.27 Australia , East Indies , Indian Ocean , Red Sea . Ib . Upper surface of ...
Pagina 368
... lower side . Lower surface of disc and of anterior part of tail smooth at all stages of growth . Snout in front of eyes about 1.4 times as long as distance between outer margins of orbits , its length in front of mouth about 2.7-2.9 ...
... lower side . Lower surface of disc and of anterior part of tail smooth at all stages of growth . Snout in front of eyes about 1.4 times as long as distance between outer margins of orbits , its length in front of mouth about 2.7-2.9 ...
Pagina 457
... lower jaw bowed forward centrally . Roof of mouth with a transverse row of six or seven short blunt papillae close behind line of emergence of upper dental plate ; margin of transverse curtain fringed ; floor of mouth with about six ...
... lower jaw bowed forward centrally . Roof of mouth with a transverse row of six or seven short blunt papillae close behind line of emergence of upper dental plate ; margin of transverse curtain fringed ; floor of mouth with about six ...
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 - 1948 |
Fishes of the Western North Atlantic: Sawfishes, guitarfishes, skates and rays John Tee-Van Anteprima non disponibile - 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