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 99
... distance between outer ends of exposed nostrils . Eyes noticeably small but fully developed ; horizontal diameter about 11⁄2 - 1⁄2 as long as distance between ... inner ends of fifth gill openings about 2.0-2.3 times as great as breadth of ...
... distance between outer ends of exposed nostrils . Eyes noticeably small but fully developed ; horizontal diameter about 11⁄2 - 1⁄2 as long as distance between ... inner ends of fifth gill openings about 2.0-2.3 times as great as breadth of ...
Pagina 440
John Tee-Van. of pectorals less than distance between inner ends of first pair of gill openings in M. freminvillii ( as great or greater than distance between first gill openings in M. goodei of all sizes ) . Although the subrostral lobe ...
John Tee-Van. of pectorals less than distance between inner ends of first pair of gill openings in M. freminvillii ( as great or greater than distance between first gill openings in M. goodei of all sizes ) . Although the subrostral lobe ...
Pagina 449
... inner margins moderately convex ( Fig . 104 ) , about as long as breadth of mouth . Axis of greatest breadth about 2/3 of distance rearward from tip of subrostral fin toward axils of pectorals ; breadth between axils of pectorals about as ...
... inner margins moderately convex ( Fig . 104 ) , about as long as breadth of mouth . Axis of greatest breadth about 2/3 of distance rearward from tip of subrostral fin toward axils of pectorals ; breadth between axils of pectorals about as ...
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