Fishes of the Western North Atlantic: Sawfishes, guitarfishes, skates and raysJohn Tee-Van Sears Foundation for Marine Research, Yale Univ., 1948 |
Dall'interno del libro
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Pagina 108
... concave a little posterior to level of spiracles ; posterior contours of pectorals either curving inward and forward to junction with trunk or merging insen- sibly rearward with sides of latter . Snout in front of eyes rigid to the ...
... concave a little posterior to level of spiracles ; posterior contours of pectorals either curving inward and forward to junction with trunk or merging insen- sibly rearward with sides of latter . Snout in front of eyes rigid to the ...
Pagina 448
... concave , increasingly so outward ; outer corners moderately rounded ( a little more broadly so than in M. freminvillii ) ; posterior corners about a right angle , blunted at tip ; inner margins moderately convex ( Fig . 104 ) , about ...
... concave , increasingly so outward ; outer corners moderately rounded ( a little more broadly so than in M. freminvillii ) ; posterior corners about a right angle , blunted at tip ; inner margins moderately convex ( Fig . 104 ) , about ...
Pagina 524
... concave , or deeply concave or subdivided . The nature of the claspers is not a satisfactory character for generic diagnosis , for it is not known for all species , and in any case it would apply to the male sex only . Therefore , we ...
... concave , or deeply concave or subdivided . The nature of the claspers is not a satisfactory character for generic diagnosis , for it is not known for all species , and in any case it would apply to the male sex only . Therefore , we ...
Sommario
SAWFISHES GUITARFISHES SKATES and RAYS | 1 |
Genus Zapteryx | 74 |
Suborder Myliobatoidea | 331 |
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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 - 1953 |
Parole e frasi comuni
Acad Amer batoids Bigelow and Schroeder biol Brazil breadth Breder 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 Interspace Jersey Jordan Lacépède length of base listed lobe long as distance Lower surface mature males median Müller and Henle nasal curtain pelvic fins Philad Poiss posterior margin prickles Proc Raja Rays rearward Rio de Janeiro rostral rostral cartilage rounded Sawfishes side Skates spiracles Study Material tail spine teeth thorns tip of snout tip of tail Torpedo transverse type species U. S. Bur U. S. Comm U. S. nat upper surface Woods Hole Zool