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Gerrhopilus ceylonicus (SMITH, 1943)

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Higher TaxaGerrhopilidae, Typhlopoidea, Serpentes, Squamata (snakes)
Common NamesE: Sri Lanka Worm Snake 
SynonymTyphlops ceylonicus SMITH 1943: 55
Typhlops ceylonicus — TAYLOR 1946: 286
Typhlops ceylonicus — TAYLOR 1950
Typhlops ceylonicus — DAS 1996
Typhlops ceylonicus — JANZEN et al. 2007
Gerrhopilus ceylonicus — VIDAL et al. 2010
Gerrhopilus ceylonicus — WALLACH et al. 2014: 308 
DistributionSri Lanka.

Type locality: Peradeniya, Ceylon  
Reproductionoviparous (manual imputation, fide Zimin et al. 2022) 
TypesHolotype: ASK = Asiatic Society, Museum, Kolkata, (was: Indian Museum Calcutta, IMC, fide SMITH 1943) 
DiagnosisDescription: Snout rounded, strongly projecting; nostrils lateral; rostral nearly half the width of the head; nasal completely divided, the lower suture passing to the second labial, the posterior shield very large, in good contact with its fellow behind the rostral; ocular and preocular smalI, the latter separated from the labials by a subocular, which is wedged in between them above, and is in contact with the 2nd, 3rd, and 4th labials below; no visible eye, the ocular shie!d in contact with the 4th labial only; tail blunt, without terminal spine; 18 scales round tbe body, the diameter of which is 35 times in the total Iength; about 330 transverse rows of scales (Smith 1943: 56).

Coloration: Brown above, yellowish-white below (Smith 1943: 56). 
CommentSynonymy after WALLACH (pers. comm.)

Similar species: Typhlops mirus. 
EtymologyNamed after the type locality. 
  • Janzen, P.; Klaas, P. & Ziesmann, S. 2007. Sri Lankas Schlangenfauna. Draco 7 (30): 56-64 - get paper here
  • Smith, M.A. 1943. The Fauna of British India, Ceylon and Burma, Including the Whole of the Indo-Chinese Sub-Region. Reptilia and Amphibia. 3 (Serpentes). Taylor and Francis, London. 583 pp.
  • Taylor, E.H. 1947. Comments on Ceylonese snakes of the genus Typhlops with descriptions of new species. Univ. Kansas Sci. Bull. 31 (13): 283-298 - get paper here
  • Taylor, Edward H. 1950. The snakes of Ceylon. Univ. Kansas Sci. Bull. 33 (14): 519-603 - get paper here
  • Vidal, Nicolas; Julie Marin, Marina Morini, Steve Donnellan, William R. Branch, Richard Thomas, Miguel Vences, Addison Wynn, Corinne Cruaud and S. Blair Hedges 2010. Blindsnake evolutionary tree reveals long history on Gondwana. Biology Letters 6: 558–561 - get paper here
  • Wallach, V. 1996. Two new Blind snakes of the Typhlops ater species group from Papua new Guinea (Serpentes: Typhlopidae). Russ. J. Herpetol. 3 (2):107-118. - get paper here
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
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