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 365
... corners but weakly concave anterior to level of eyes ; outer corners abruptly rounded to subangular , forming approx- imately a right angle ; posterior corners more broadly rounded ; posterior margins weakly convex , increasingly so ...
... corners but weakly concave anterior to level of eyes ; outer corners abruptly rounded to subangular , forming approx- imately a right angle ; posterior corners more broadly rounded ; posterior margins weakly convex , increasingly so ...
Pagina 368
... corners , the lowers about uni- form in size all along jaw except near outer corners where somewhat smaller ; 6-7 rows in function simultaneously in upper jaw , 8-9 rows along central part of lower jaw , 6-8 rows toward outer corners ...
... corners , the lowers about uni- form in size all along jaw except near outer corners where somewhat smaller ; 6-7 rows in function simultaneously in upper jaw , 8-9 rows along central part of lower jaw , 6-8 rows toward outer corners ...
Pagina 492
... corners subangular ; rear corners narrowly rounded or subangular ; inner margins moderately convex , about half as long as distance between eyes . Dorsal fin with mod- erately convex anterior margin and broadly rounded apex ; posterior ...
... corners subangular ; rear corners narrowly rounded or subangular ; inner margins moderately convex , about half as long as distance between eyes . Dorsal fin with mod- erately convex anterior margin and broadly rounded apex ; posterior ...
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