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
Risultati 1-3 di 89
Pagina 7
... spiracles play a much more important role in respiration among most of the batoids than in any modern Shark . In many of the latter , water is taken in solely through the mouth in breathing and chiefly through the mouth even by such of ...
... spiracles play a much more important role in respiration among most of the batoids than in any modern Shark . In many of the latter , water is taken in solely through the mouth in breathing and chiefly through the mouth even by such of ...
Pagina 130
... spiracles about twice as long as breadth between spiracles , its length in front of mouth about 2.5 times as great as distance between outer ends of nostrils . Eyes separated from spiracles by a distance about equal to length of latter ...
... spiracles about twice as long as breadth between spiracles , its length in front of mouth about 2.5 times as great as distance between outer ends of nostrils . Eyes separated from spiracles by a distance about equal to length of latter ...
Pagina 455
... spiracles about 1.0-1.2 times as deep as distance between spiracles and at level of pec- toral girdle about 1.1-1.4 times as deep ( thus much deeper than in the dasyatids or Butterfly Rays ) ; progressively thinner posteriorly and ...
... spiracles about 1.0-1.2 times as deep as distance between spiracles and at level of pec- toral girdle about 1.1-1.4 times as deep ( thus much deeper than in the dasyatids or Butterfly Rays ) ; progressively thinner posteriorly and ...
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