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 86
Pagina 78
... front of mouth about 1.6-1.7 times as great as width of mouth and about 3.0-3.2 times as great as distance between inner ends of nostrils . Crown concave transversely , the margins of orbits prominent . Horizontal diameter of eyes ...
... front of mouth about 1.6-1.7 times as great as width of mouth and about 3.0-3.2 times as great as distance between inner ends of nostrils . Crown concave transversely , the margins of orbits prominent . Horizontal diameter of eyes ...
Pagina 330
... front of mouth 24.3 , 24.3 . Orbits : horizontal diameter 2.9 , 3.3 ; distance between 2.6 , 2.6 . Spiracles : length 1.0 , 1.5 ; distance between 5.1 , 5.0 . Mouth : breadth 4.5 , 4.8 . Nostrils : distance between inner ends 3.8 , 4.0 ...
... front of mouth 24.3 , 24.3 . Orbits : horizontal diameter 2.9 , 3.3 ; distance between 2.6 , 2.6 . Spiracles : length 1.0 , 1.5 ; distance between 5.1 , 5.0 . Mouth : breadth 4.5 , 4.8 . Nostrils : distance between inner ends 3.8 , 4.0 ...
Pagina 517
... front of mouth , each connected with outer corner of mouth by a deep groove roofed over by lateral lobe of upper lip , thus forming a closed channel through which water is drawn into mouth in breathing ; nasal aperture incompletely ...
... front of mouth , each connected with outer corner of mouth by a deep groove roofed over by lateral lobe of upper lip , thus forming a closed channel through which water is drawn into mouth in breathing ; nasal aperture incompletely ...
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