Fishes of the Western North Atlantic: LanceletsSears Foundation for Marine Research, Yale Univ., 1948 |
Dall'interno del libro
Risultati 1-3 di 80
Pagina 7
... side , atrial chamber unclosed and gill slits in an unpaired medio - ventral series— are those of larval Lancelets ... side . 22. Series of gonads developed on each side ; both metapleura terminating close be- hind atriopore ...
... side , atrial chamber unclosed and gill slits in an unpaired medio - ventral series— are those of larval Lancelets ... side . 22. Series of gonads developed on each side ; both metapleura terminating close be- hind atriopore ...
Pagina 31
... side of nostril and I or 2 pairs at side of mouth ; single con- tinuous fin running posteriorly around tail and anteriorly on lower surface ; fin rays restricted to tail region ; nostril at tip of snout opening into mouth and serving as ...
... side of nostril and I or 2 pairs at side of mouth ; single con- tinuous fin running posteriorly around tail and anteriorly on lower surface ; fin rays restricted to tail region ; nostril at tip of snout opening into mouth and serving as ...
Pagina 32
... side open independently to exterior . 2a . Gill openings on each side ( 16 in number ) are close together . Paramyxine Dean , 1904 . Japan . 2b . Gill openings on each side ( 5-14 in number ) separated by interspaces of consider- able ...
... side open independently to exterior . 2a . Gill openings on each side ( 16 in number ) are close together . Paramyxine Dean , 1904 . Japan . 2b . Gill openings on each side ( 5-14 in number ) separated by interspaces of consider- able ...
Sommario
LANCELETS BY HENRY B BIGELOW and ISABEL PÉREZ FARFANTE I | 1 |
CYCLOSTOMES BY HENRY B BIGELOW and WILLIAM C SCHROEDER | 29 |
SHARKS BY HENRY B BIGELOW and WILLIAM C SCHROEDER | 59 |
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Parole e frasi comuni
1st dorsal 2nd dorsal Acad Amer anal Anal fin atriopore Aust biol Brazil Brit Bull Carcharhinus Carcharias Carolina Caudal fin caudal peduncle coast Comp concave convex Copeia corner of mouth Cuba cusps Dermal denticles descr diameter of eye distal margin distrib dorsal fin embryos Fauna feet female Fish Florida Fowler front of mouth Garman genus gill opening Gulf of Maine Harv Hist horizontal diameter inner corner inner margin Interspace Jersey labial furrow length in front length of base Linnaeus lobe long as base lower teeth Medit Müller and Henle myotomes North nostrils origin of pectoral outer margin ovoviviparous Pectoral fin Philad Poey Poiss posterior margin precaudal pit Proc Rafinesque refs ridges Second dorsal Shark snout in front specimens spiracles Squalus Stewart Springer total length type species U.S. Bur U.S. Comm U.S. nat upper tooth vertical height Woods Hole Zool zygaena