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 89
Pagina 154
... thorns anywhere on disc anterior to level of axils of pectorals . 7a . Distance from cloaca to tip of tail shorter ... thorns either along midline , around orbits , on scapular regions , or on all three parts . 8a . No thorns on scapular ...
... thorns anywhere on disc anterior to level of axils of pectorals . 7a . Distance from cloaca to tip of tail shorter ... thorns either along midline , around orbits , on scapular regions , or on all three parts . 8a . No thorns on scapular ...
Pagina 180
... thorns , the largest posteriorly ; 6-10 thorns on each shoulder region ; 2-3 behind each eye , with two or more in front of it ; 2-3 along inner margin of orbits , and a few in space between orbits ; a row along either edge of rostral ...
... thorns , the largest posteriorly ; 6-10 thorns on each shoulder region ; 2-3 behind each eye , with two or more in front of it ; 2-3 along inner margin of orbits , and a few in space between orbits ; a row along either edge of rostral ...
Pagina 244
... thorns on each shoulder and with others between orbits , surrounding eyes , and along margins of rostral ridge to tip of snout ; a row of 12-16 thorns , about uniform in size , along midline of disc from nuchal region ; 16-18 on tail to ...
... thorns on each shoulder and with others between orbits , surrounding eyes , and along margins of rostral ridge to tip of snout ; a row of 12-16 thorns , about uniform in size , along midline of disc from nuchal region ; 16-18 on tail to ...
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