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 85
Pagina 108
... side by side . Nostrils slightly oblique , apparently minute on cursory appearance because they are roofed inwardly by the joint nasal curtain , but actually they are about as long as the breadth of the isthmus between them , or longer ...
... side by side . Nostrils slightly oblique , apparently minute on cursory appearance because they are roofed inwardly by the joint nasal curtain , but actually they are about as long as the breadth of the isthmus between them , or longer ...
Pagina 518
... side ; carried pressed downward and forward into a groove on forehead normally but raised during mating . In color the chimaeroids vary from silvery ( variously marked with stripes or spots ) to uniform leaden or almost black , a range ...
... side ; carried pressed downward and forward into a groove on forehead normally but raised during mating . In color the chimaeroids vary from silvery ( variously marked with stripes or spots ) to uniform leaden or almost black , a range ...
Pagina 525
... side ( as determined by presence of horny rays ) extending rearward as a narrow band for a con- siderable distance beyond termination of upper side . Eyes oval , their vertical diameter about 1-3 as great as height of head at level of ...
... side ( as determined by presence of horny rays ) extending rearward as a narrow band for a con- siderable distance beyond termination of upper side . Eyes oval , their vertical diameter about 1-3 as great as height of head at level of ...
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