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 81
Pagina 151
... median row ; at least 34 large thorns in young and up to 50 or more in adults in median row from nuchal region to first dorsal fin . Raja lintea Fries 1838 , p . 232 . 22 b . Tail with only one ( the median ) row of large thorns ; not ...
... median row ; at least 34 large thorns in young and up to 50 or more in adults in median row from nuchal region to first dorsal fin . Raja lintea Fries 1838 , p . 232 . 22 b . Tail with only one ( the median ) row of large thorns ; not ...
Pagina 468
... median series five times as wide ( transversely ) as long ( anter- oposteriorly ) . brasiliensis Müller and Henle 1841 , p . 477 . 2 b . Upper teeth of median series not more than about three times as broad ( trans- versely ) as long ...
... median series five times as wide ( transversely ) as long ( anter- oposteriorly ) . brasiliensis Müller and Henle 1841 , p . 477 . 2 b . Upper teeth of median series not more than about three times as broad ( trans- versely ) as long ...
Pagina 478
... median series but eight on the other side , making a total of 13 series.54 In specimens with the normal number of nine series , the teeth of the median series at birth are about 3.5-4.0 times as broad ( transversely ) as long ...
... median series but eight on the other side , making a total of 13 series.54 In specimens with the normal number of nine series , the teeth of the median series at birth are about 3.5-4.0 times as broad ( transversely ) as long ...
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