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 47
... nostrils more or less oblique ; inward extension of lobe - like expansion of anterior margin of nostrils ending some distance out- ward from inner corner of nostril . Rhinobatos Link 1790 , p . 50 . 4b . Posterior margin of spiracles ...
... nostrils more or less oblique ; inward extension of lobe - like expansion of anterior margin of nostrils ending some distance out- ward from inner corner of nostril . Rhinobatos Link 1790 , p . 50 . 4b . Posterior margin of spiracles ...
Pagina 51
... Nostrils more or less oblique , wholly separate from mouth and well separated one from the other . Anterior margin of nostrils expanded as a narrow lobe across middle of nasal aperture , the lobe's inward extension widely separated from ...
... Nostrils more or less oblique , wholly separate from mouth and well separated one from the other . Anterior margin of nostrils expanded as a narrow lobe across middle of nasal aperture , the lobe's inward extension widely separated from ...
Pagina 78
... nostrils , the second to fifth pairs a little shorter in succession ; distance between inner ends of fifth pair about as long as snout in front of mouth . Nostrils transverse or slightly oblique ; length about as great as distance ...
... nostrils , the second to fifth pairs a little shorter in succession ; distance between inner ends of fifth pair about as long as snout in front of mouth . Nostrils transverse or slightly oblique ; length about as great as distance ...
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