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 61
Pagina 355
... tail ; maximum breadth of lower tailfold ( under middle of spine or spines ) about 1 / , as great as height of tail at same point . Tail spines one , sometimes two or three , with replacement spine growing anterior to older ones on ...
... tail ; maximum breadth of lower tailfold ( under middle of spine or spines ) about 1 / , as great as height of tail at same point . Tail spines one , sometimes two or three , with replacement spine growing anterior to older ones on ...
Pagina 372
... tail are not notice- ably larger than those on the posterior part of the ... spine 50.7 , 46.0 . Disc in both sexes rhomboid , varying from about as long ... Tail noticeably depressed dorsoventrally and oval in cross section anterior to ...
... tail are not notice- ably larger than those on the posterior part of the ... spine 50.7 , 46.0 . Disc in both sexes rhomboid , varying from about as long ... Tail noticeably depressed dorsoventrally and oval in cross section anterior to ...
Pagina 488
... tail spine and M. hypostoma ( Bancroft ) 1831 without . A Mobula , whose specific identity cannot be deter- mined because information is lacking as to the presence or absence of a tail spine , has been pictured from the Island of St ...
... tail spine and M. hypostoma ( Bancroft ) 1831 without . A Mobula , whose specific identity cannot be deter- mined because information is lacking as to the presence or absence of a tail spine , has been pictured from the Island of St ...
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