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 84
Pagina 111
... posterior margin approximately vertical , its lower margin only weakly convex at most . 3a . Disc conspicuously marked above with white vermiculations on a dark . ground . vermiculatus Breder 1928 . Pacific Coast of Mexico . 3b . Disc ...
... posterior margin approximately vertical , its lower margin only weakly convex at most . 3a . Disc conspicuously marked above with white vermiculations on a dark . ground . vermiculatus Breder 1928 . Pacific Coast of Mexico . 3b . Disc ...
Pagina 492
... posterior to spiracles and on a level with latter , or a little higher ; anterior margins of pectorals nearly straight from points of origin but increas- ingly convex toward outer corners ; posterior margins moderately and evenly ...
... posterior to spiracles and on a level with latter , or a little higher ; anterior margins of pectorals nearly straight from points of origin but increas- ingly convex toward outer corners ; posterior margins moderately and evenly ...
Pagina 542
... posterior margin ; its base ( from origin of spine to bottom of interdorsal notch ) about 2/3 ( 65-66 % ) as long as height along anterior margin . Distance between first dorsal and first sensible elevation of second dorsal a little ...
... posterior margin ; its base ( from origin of spine to bottom of interdorsal notch ) about 2/3 ( 65-66 % ) as long as height along anterior margin . Distance between first dorsal and first sensible elevation of second dorsal a little ...
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 Visualizzazione estratti - 1953 |
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