期刊
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
卷 277, 期 1683, 页码 915-922出版社
ROYAL SOC
DOI: 10.1098/rspb.2009.1662
关键词
lungless caecilian; terrestrial; Guayana
资金
- National Science Foundation [IBN 02-12027, EB 03-34939]
- GEN/UNDP Assistance Grant [GUY92/G31]
- Florida International University Provost's Office [571244850]
We report the discovery of a single specimen of a small, terrestrial, lungless caecilian, the second known taxon of lungless caecilians. It differs from all other caecilians in lacking open external nares, and from the large aquatic lungless species described by Nussbaum & Wilkinson (Nussbaum, R. A. & Wilkinson, M. 1995 Proc. R. Soc. Lond. B 261, 331-335) in having no significant skull modifications. All modifications are of 'soft morphology' (covered external nares and choanae, lung and pulmonary vessel loss, etc.). A new genus and species are described to accommodate this form. Aspects of its skull and visceral morphology are described and considered in terms of the possible life history and evolution of the species, and compared with those of other lungless amphibians.
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