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
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Pagina 27
... transverse to axis of saw as a whole , their posterior outlines a little more convex toward tips which are sharp or variously blunted by wear ; anterior edge sharp ; posterior edge flat transversely , or nearly so , on basal teeth but ...
... transverse to axis of saw as a whole , their posterior outlines a little more convex toward tips which are sharp or variously blunted by wear ; anterior edge sharp ; posterior edge flat transversely , or nearly so , on basal teeth but ...
Pagina 116
... transverse , their inner ends reaching the deep furrow that surrounds mouth , thus approaching closely to latter though separate from it ; all of nostril , except for a small circular aper- ture at outer end , roofed over by expansion ...
... transverse , their inner ends reaching the deep furrow that surrounds mouth , thus approaching closely to latter though separate from it ; all of nostril , except for a small circular aper- ture at outer end , roofed over by expansion ...
Pagina 457
... transverse row of six or seven short blunt papillae close behind line of emergence of upper dental plate ; margin of transverse curtain fringed ; floor of mouth with about six papillae ( Fig . 106 A ) . 5 Teeth in form of flat , narrow ...
... transverse row of six or seven short blunt papillae close behind line of emergence of upper dental plate ; margin of transverse curtain fringed ; floor of mouth with about six papillae ( Fig . 106 A ) . 5 Teeth in form of flat , narrow ...
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