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 239
... front ; tip of snout slightly blunted , projecting a little ; maximum anterior angle in front of spiracles about 115 ° ; anterior margins of pectorals from close behind tip of snout nearly straight or weakly concave abreast of eye and ...
... front ; tip of snout slightly blunted , projecting a little ; maximum anterior angle in front of spiracles about 115 ° ; anterior margins of pectorals from close behind tip of snout nearly straight or weakly concave abreast of eye and ...
Pagina 420
... front , or at least very obtuse , the snout in front of the eyes is only a little longer than the distance between the eyes , and its pelvics are rounded , whereas Urotrygon microphthalmum is angular in front , the pointed snout is ...
... front , or at least very obtuse , the snout in front of the eyes is only a little longer than the distance between the eyes , and its pelvics are rounded , whereas Urotrygon microphthalmum is angular in front , the pointed snout is ...
Pagina 517
... front of level of front of eyes , transverse , small . Lips thick and fleshy and supported by complex cartilages ; upper lip of three parts , a trans- verse median lobe and a large lateral lobe on either side separated from the median ...
... front of level of front of eyes , transverse , small . Lips thick and fleshy and supported by complex cartilages ; upper lip of three parts , a trans- verse median lobe and a large lateral lobe on either side separated from the median ...
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