Uraeotyphlus narayani Seshachar, 1939a

Narayan’s caecilian, Kannan caecilian


Taxonomy & Nomenclature



Conservation Status

Last record: 1939 or before

Rediscovered or relocated or never missing

IUCN RedList status: Data Deficient



Kerala, India


Biology & Ecology




UMMZ 139811 (skull) (Nussbaum, 1979:1)

UMMZ 146887 (skull) (Nussbaum, 1979:1)






Original scientific description:

Seshachar, B. R. (1939a). On a new species of Uraeotyphlus from South India. Proceedings of the Indian Academy of Sciences. Section B 9: 224-228.

Other references:

Akbarsha, M. A., Jancy, G. M., Smita, M., & Oommen, O. V. (2006). Caecilian male Müllerian gland, with special reference to Uraeotyphlus narayani. In J.-M. Exbrayat (Ed.), “Reproductive Biology and Phylogeny of Gymnophiona (Caecilians)” (pp. 157e182). Enfield, NH: Science Publishers Inc.

Bhatta, G. (1997). Caecilian diversity of the Western Ghats: In search of the rare animals. Current Science [1997]: 183-187.

Bhatta, G. (1998). A field guide to the caecilians of the Western Ghats, India. Journal of Biosciences 23(1): 73-85.

Chanda, S. K. (2002). Handbook - Indian Amphibians. Zoological Survey of India, Kolkata.

Dutta, S. K. (1997). Amphibians of India and Sri Lanka. Odyssey Publishing House, Bhubaneswar.

Sushil Dutta, Gopalakrishna Bhatta, David Gower, Mark Wilkinson, Oommen V. Oommen. (2004). Uraeotyphlus narayani. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. ( Downloaded on 17 February 2013.

Ganesh, S. R. and Asokan, J. R. (2010). Catalogue of Indian herpetological specimens in the collection of the Government Museum Chennai, India. Hamadryad 35(1): 46-63.

George, J. M., Smita, M., Kadalmani, B., Girija, R., Oommen, O. V., & Akbarsha, M. A. (2004). Secretory and basal cells of the epithelium of the tubular glands in the male Mullerian gland of the caecilian Uraeotyphlus narayani (Amphibia: Gymnophiona). Journal of Morphology, 262(3), 760-769.

George, J. M., Smita, M., Kadalmani, B., Girija, R., Oommen, O. V., & Akbarsha, M. A. (2005). Contribution of the secretory material of caecilian (amphibia: Gymnophiona) male Mullerian gland to motility of sperm: a study in Uraeotyphlus narayani. Journal of Morphology 263(2): 227-237.

George, J. M., Smita, M., Oommen, O. V., & Akbarsha, M. A. (2004). Histology and ultrastructure of male mullerian gland of Uraeotyphlus narayani (Amphibia: Gymnophiona). Journal of Morphology 260(1): 33-56.

Gower, D. J., Kupfer, A., Oommen, O. V., Himstedt, W., Nussbaum, R. A., Loader, S. P., Presswell, B., Müller, H., Krishna, S. B., Boistel, R. and Wilkinson, M. (2002). A molecular phylogeny of ichthyophiid caecilians (Amphibia: Gymnophiona: Ichthyophiidae): Out of India or out of southeast Asia? Procceedings of the Royal Society B 269: 1563-1569.

Gower, D. J. and Wilkinson, M. (2002). Phallus morphology in caecilians and its systematic utility. Bulletin of the Natural History Museum, Zoology Series 68(2): 143-154.

Gower, D. J. and Wilkinson, M. (2005). Conservation biology of caecilian amphibians. Conservation Biology 19(1): 45-55.

Gower, D. J. and Wilkinson, M. (2007). Species groups in the Indian caecilian genus Uraeotyphlus Peters (Amphibia: Gymnophiona: Uraeotyphlidae), with the description of a new species. Herpetologica 63: 401-410.

Nussbaum, R. A. (1979). The taxonomic status of the caecilian genus Uraeotyphlus Peters. Occasional Papers of the Museum of Zoology of the University of Michigan 687: 1-20.

Nussbaum, R. A. (2003). ''Kannan caecilian, Uraeotyphlus narayani.'' Grzimek's Animal Life Encyclopedia, Volume 6, Amphibians. 2nd edition. M. Hutchins, W. E. Duellman, and N. Schlager, eds., Gale Group, Farmington Hills, Michigan.

Pillai, R. S. and Ravichandran, M. S. (1999). Gymnophiona (Amphibia) of India - A taxonomic study. Records of the Zoological Survey of India (Occ. Paper) 172: 1-117.

Ramaswami, L. S. (1941). Some aspects of the cranial morphology of Uraeotyphlus narayani Seshachar (Apoda). Rec. Indian Mus. 43: 143-207. [automatic download]

Seshachar, B. R. (1939b). The spermatogenesis of Uraeotyphlus narayani Seshachar. La Cellule 48: 63-76.

Smita, M., Oommen, O. V., George, J. M. and Akbarsha, M. A. (2003). Sertoli cells in the testis of caecilians, Ichthyophis tricolor and Uraeotyphlus cf. narayani (Amphibia: Gymnophiona): light and electron microscopic perspective. Journal of Morphology 258(3): 317-326.

Smita, M., Oommen, O. V., Jancy, M. G. and Akbarsha, M. A. (2004). Stages in spermatogenesis of two species of caecilians, Ichthyophis tricolor and Uraeotyphlus cf. narayani (Amphibia: Gymnophiona): Light and electron microscopic study. Journal of Morphology 261(1): 92-104.

Taylor, E. H. (1968). The Caecilians of the World. A Taxonomic Review. University of Kansas Press, Lawrence, Kansas.

Venu, G. and Venkatachalaiah, G. (2013). Chromosomal homology of Uraeotyphlus oxyurus group of species (Amphibia, Gymnophiona, Ichthyophiidae). Comparative Cytogenetics 7(1): 11-23.

Wilkinson, M. and Nussbaum, R.A. 1992. On the phylogenetic position of the Uraeotyphlidae (Amphibia: Gymnophiona). Copeia [1992]: 550-562.


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