Approximately 200 mm in length; primary folds more numerous than secondaries; 5-6 premaxillary teeth, 8-11 maxillary teeth; small tentacle that is nearer to the eye than the nostril; circular gill clefts present in adults (modified from Taylor 1968).
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Seychelles
Typically all Grandisonia species are fossorial and can be found under leaves, stones, decaying wood, and in wet soil. G. larvata is known from sea-level to at least 260 m. Distribution is thought to be limited to the availability of moist habitat rather than elevation.
Life History, Abundance, Activity, and Special Behaviors
All species of Grandisonia are believed to be oviparous. It has been reported that G. larvata has a larval stage.
Trends and Threats
Possible reasons for amphibian decline
General habitat alteration and loss
Morgan, L. A., and Buttemer, W. A. (1996). ''Predation by the non-native fish Gambusia holbrooki on small Litoria aurea and L. dentata tadpoles.'' Australian Zoologist, 30(2), 143-149.
Taylor, E.H. (1968). The Caecilians of the World. A Taxonomic Review. University of Kansas Press, Lawrence, Kansas.
Wake, M.H. (1977). ''The reproductive biology of caecilians: an evolutionary perspective.'' Reproductive Biology of Amphibians. D.H. Taylor and S.I. Guttman, eds., Plenum Press, New York., 73-101.
Written by D.C. Blackburn (dblackburn AT oeb.harvard.edu), Harvard University
First submitted 2002-11-13
Edited by Meredith Mahoney (2003-02-03)
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