Chromosomal homology of Uraeotyphlus oxyurus group of species (Amphibia, Gymnophiona, Ichthyophiidae)

Abstract

Uraeotyphlus oxyurus (Dumeril et Bibron, 1841), Uraeotyphlus interruptus Pillai et Ravichandran, 1999, Uraeotyphlus narayani Seshachar, 1939 and Uraeotyphlus menoni Annandale, 1913 were cytogenetically analysed following conventional and differential staining techniques. These species show similar karyotypes with 2n=36 (FN=58). There were no traces of species-specific features in regard to C-banding and NOR staining. The comparative study of karyotypes shows chromosomal homologies among the four species. Chromosomal data seem to support the concept that two species groups exist in the genus Uraeotyphlus.

Morphology, biology, and distribution of Ichthyophis kodaguensis (Amphibia:Gymnophiona), a rare caecilian from the Western Ghats, India

“…The genus Ichthyophis is endemic to Asia and is widely distributed in parts of India and south and southeast Asia, but not east of Wallace's line (Taylor 1968;Nussbaum and Wilkinson 1989;Wilkinson et al 2007;Frost 2023). Uraeotyphlus is endemic to the State of Kerala, in the southern Western Ghats, India (Wilkinson and Nussbaum 1996;Venu et al 2011;Venu and Venkatachalaiah 2013).…”