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The validity of Siren intermedia Leconte, with observations on its life history. American Museum novitates ; no. 532

Show simple item record Noble, Gladwyn Kingsley, 1894-1940. en_US Marshall, B. C. en_US 2005-10-06T17:24:41Z 2005-10-06T17:24:41Z 1932 en_US
dc.description 17 p. : ill. ; 24 cm. en_US
dc.description Includes bibliographical references (p. 16-17). en_US
dc.description.abstract "There are two species of Siren widely distributed throughout United States. These are distinguished by size at ovulation, the average number of costal grooves, the size of the eggs, thickness of the egg-capsules, the coloration of the young for nine months after hatching, and the body proportions for a more extended period. 2. LeConte did not distinguish between these species when describing Siren intermedia, but we reinstate this name usually placed in the synonymy of lacertina and restrict it to the smaller species described here. 3. The recently hatched young of S. intermedia is remarkable for its long body, short tail, and broad dorsal fin extending the full length of the back. 4. Changes taking place in the head and forelimbs during the first fifty-five days after hatching are described. No balancer ever appears. 5. Reduction of the dorsal fin begins about two months after hatching but is not complete in some specimens until nine months. 6. Both species of Siren are nocturnal. The adult intermedia devours quantities of Spirogyra and possibly other algae with its animal food which consists of crayfish and molluscs"--P. 16. en_US
dc.format.extent 2116789 bytes
dc.format.mimetype application/pdf
dc.language eng en_US
dc.language.iso en_US
dc.publisher New York City : The American Museum of Natural History en_US
dc.relation.ispartofseries American Museum novitates ; no. 532 en_US
dc.subject.lcc QL1 .A436 no.532, 1932 en_US
dc.subject.lcsh Siren intermedia. en_US
dc.subject.lcsh Sirenidae. en_US
dc.subject.lcsh Salamanders -- Southern States. en_US
dc.subject.lcsh Salamanders -- Mexico. en_US
dc.subject.lcsh Amphibians -- Southern States. en_US
dc.subject.lcsh Amphibians -- Mexico. en_US
dc.title The validity of Siren intermedia Leconte, with observations on its life history. American Museum novitates ; no. 532 en_US
dc.title.alternative Life history of Siren intermedia en_US
dc.type text en_US

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  • American Museum Novitates
    Novitates (Latin for "new acquaintances"), published continuously and numbered consecutively since 1921, are short papers that contain descriptions of new forms and reports in zoology, paleontology, and geology. New numbers are published at irregular intervals.

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