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 64
Pagina 336
... spine has been dropped ( leaving only a scar ) before any trace is to be seen of the spine that should succeed it . At least in some species the replacement spine may develop either close anterior to the pre - existing one or close ...
... spine has been dropped ( leaving only a scar ) before any trace is to be seen of the spine that should succeed it . At least in some species the replacement spine may develop either close anterior to the pre - existing one or close ...
Pagina 355
... 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 specimens studied ; 65 distance from origin of first spine to ...
... 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 specimens studied ; 65 distance from origin of first spine to ...
Pagina 488
... spine and M. diabola ( Shaw ) 180486 without . One representative of the genus , Mobula lucasana Beebe and Tee - Van 1938,87 which lacks a tail spine , has been described from the eastern side of the Pacific ( Lower California ...
... spine and M. diabola ( Shaw ) 180486 without . One representative of the genus , Mobula lucasana Beebe and Tee - Van 1938,87 which lacks a tail spine , has been described from the eastern side of the Pacific ( Lower California ...
Sommario
SAWFISHES GUITARFISHES SKATES and RAYS | 1 |
Genus Zapteryx | 74 |
Suborder Myliobatoidea | 331 |
5 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 - 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