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 153
... orbits to tip of snout ; upper surface of anterior part of disc with black spots and streaks , marking mucous pores . 5a . Tail with three rows of thorns ; margins of orbits and scapular regions also with thorns ; snout anterior to orbits ...
... orbits to tip of snout ; upper surface of anterior part of disc with black spots and streaks , marking mucous pores . 5a . Tail with three rows of thorns ; margins of orbits and scapular regions also with thorns ; snout anterior to orbits ...
Pagina 254
... orbits 3.5-4.0 times as long as orbit , its length in front of mouth 2.2-2.3 times as great as distance between exposed nostrils . Orbit 1.9-2.2 times as long as spiracle ; distance between orbits 1.0-1.2 times as great as length of orbit ...
... orbits 3.5-4.0 times as long as orbit , its length in front of mouth 2.2-2.3 times as great as distance between exposed nostrils . Orbit 1.9-2.2 times as long as spiracle ; distance between orbits 1.0-1.2 times as great as length of orbit ...
Pagina 422
... orbits , or about half as long as distance from its origin to center of cloaca ; its origin a little posterior to midlength of tail from center of cloaca ; spine with about 20-25 recurved and sharp lateral teeth toward tip but smooth ...
... orbits , or about half as long as distance from its origin to center of cloaca ; its origin a little posterior to midlength of tail from center of cloaca ; spine with about 20-25 recurved and sharp lateral teeth toward tip but smooth ...
Sommario
SAWFISHES GUITARFISHES SKATES and RAYS | 1 |
Suborder Myliobatoidea | 331 |
Dasyatis say | 378 |
10 sezioni non visualizzate
Altre edizioni - Visualizza tutto
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