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On the anatomy and evolution of the locomotor apparatus of the nipple-tailed ocean sunfish (Masturus lanceolatus). Bulletin of the AMNH ; v. 76, article 4

Show simple item record Raven, Henry Cushier, 1889-1944. en_US Pflueger, Albert. en_US 2005-10-06T15:48:43Z 2005-10-06T15:48:43Z 1939 en_US
dc.description p. 143-150, [1] folded leaf of plates : ill. ; 24 cm. en_US
dc.description Includes bibliographical references (p. 150). en_US
dc.description.abstract "The purpose of this study was to discover, through a structural series from primitive percomorph to Masturus, the evolutionary changes which gave rise to the peculiar locomotor apparatus of the molids. The structural series: (1) generalized percomorph, (2) acanthurid, (3) balistid, (4) diodont, (5) molid, which was worked out by Gregory on skull structure, was adopted as a provisional basis for the present study and the present study affords additional evidence for its validity. In general the following major changes are involved in passing from generalized percomorph to molid: (1) great shortening and deepening of body; (2) extreme emphasis and vertical growth of dorsal and anal fins; (3) corresponding hypertrophy of erector and depressor muscles of dorsal and anal, involving their great extension forward and eventual atrophy and disappearance of mm. inclinatores; (4) corresponding reduction and eventual loss of the lateralis mass of metameric musculature; (5) correlated reduction and loss of undulation of the body and of the true caudal fin; (6) formation of new or pseudo-caudal fin by extension of dorsal and anal, meeting around the shortened caudal end of the column; (7) crowding of the posterior dorsal and anal pterygiophores against the seventh neural and eighth haemal spines; (8) crowding of the body cavity by forward growth of the erector plus depressor muscles of the anal fin; (9) reduction and loss of the puffing habit (will be treated more fully in a paper on Ranzania); (10) the long ligament, from supraoccipital crest to the anterior border of the dorsal fin, probably represents a vestige of the trigger mechanism of balistoids. The characters of the alimentary tract suggest that these fishes are bottom-living forms; the skin, skeleton, and the loss of the air-bladder suggest that they live in deep water and the form of the fins with their powerful muscles indicates an active existence"--P. 149-150. en_US
dc.format.extent 8243204 bytes
dc.format.mimetype application/pdf
dc.language eng en_US
dc.language.iso en_US
dc.publisher New York : The American Museum of Natural History en_US
dc.relation.ispartofseries Bulletin of the American Museum of Natural History ; v. 76, article 4 en_US
dc.subject.lcc QH1 .A4 vol.76, art.4, 1939 en_US
dc.subject.lcsh Masturus lanceolatus -- Anatomy. en_US
dc.subject.lcsh Musculoskeletal system. en_US
dc.subject.lcsh Molidae -- Anatomy. en_US
dc.subject.lcsh Molidae -- Evolution. en_US
dc.subject.lcsh Tetraodontiformes -- Anatomy. en_US
dc.subject.lcsh Fishes -- Florida -- Anatomy. en_US
dc.title On the anatomy and evolution of the locomotor apparatus of the nipple-tailed ocean sunfish (Masturus lanceolatus). Bulletin of the AMNH ; v. 76, article 4 en_US
dc.title.alternative Anatomy and evolution of the nipple-tailed sunfish en_US
dc.type text en_US

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  • Bulletin of the American Museum of Natural History
    The Bulletin, published continuously since 1881, consists of longer monographic volumes in the field of natural sciences relating to zoology, paleontology, and geology. Current numbers are published at irregular intervals. The Bulletin was originally a place to publish short papers, while longer works appeared in the Memoirs. However, in the 1920s, the Memoirs ceased and the Bulletin series began publishing longer papers. A new series, the Novitates , published short papers describing new forms.

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