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
Risultati 1-3 di 87
Pagina 63
... female at level of first dorsal fin , about 1.0X . D Dermal denticles along midline of back of female between nuchal region and pectoral girdle , anterior ends uppermost , about 10X . E Dermal denticle of female from beside mid - dorsal ...
... female at level of first dorsal fin , about 1.0X . D Dermal denticles along midline of back of female between nuchal region and pectoral girdle , anterior ends uppermost , about 10X . E Dermal denticle of female from beside mid - dorsal ...
Pagina 115
... female , 258 mm long , from New Smyrna Beach , Florida ( Harv . Mus . Comp . Zool . , No. 36398 ) , with skin dissected away from left - hand side to show electric organ somewhat diagramatically . G Eye and spiracle of another female of ...
... female , 258 mm long , from New Smyrna Beach , Florida ( Harv . Mus . Comp . Zool . , No. 36398 ) , with skin dissected away from left - hand side to show electric organ somewhat diagramatically . G Eye and spiracle of another female of ...
Pagina 193
... female would have to lay more than the maximum observed by us in aquarium experiments ( eight ) to maintain the stock . If the stock is to be held at the same level , each female must pro- duce two offspring which attain sexual maturity ...
... female would have to lay more than the maximum observed by us in aquarium experiments ( eight ) to maintain the stock . If the stock is to be held at the same level , each female must pro- duce two offspring which attain sexual maturity ...
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 Anteprima non disponibile - 1948 |
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