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Cyclotyphlops deharvengi IN DEN BOSCH & INEICH, 1994

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Higher TaxaTyphlopidae (Asiatyphlopinae), Typhlopoidea, Serpentes, Squamata (snakes) 
Subspecies 
Common NamesE: Deharveng’s Blind Snake 
SynonymCyclotyphlops deharvengi IN DEN BOSCH & INEICH 1994
Cyclotyphlops deharvengi — MCDIARMID, CAMPBELL & TOURÉ 1999: 55
Cyclotyphlops deharvengi — KOCH 2011
Cyclotyphlops deharvengi — HEDGES et al. 2014
Cyclotyphlops deharvengi — WALLACH et al. 2014: 203 
DistributionIndonesia (Sulawesi)

Type locality: Malawa, between Maros and Watampone, South Sulawesi, Indonesia  
Reproductionoviparous 
TypesHolotype: MNHN 1990.4279 
CommentThe pileus constellation of Cyclotyphlops deharvengi is unique among reptiles. The large central circular head shield - around which smaller scales radiate - might cover what could be a parietal eye, which has never been found in snakes before.

Type species: Cyclotyphlops deharvengi IN DEN BOSCH & INEICH 1994 is the type species of the genus Cyclotyphlops IN DEN BOSCH & INEICH 1994.

Diagnosis. The single species of Cyclotyphlops has (1) eye, distinct, (2) snout, rounded, (3) head scale arrangement, circular, (4) frontorostral, absent, (5) nasal, completely divided, (6) nasal suture origin, junction of 1st and 2nd supralabial, (7) suboculars or subpreoculars, present, (8) postoculars, 1, (9) preocular-labial contact, absent, (10) midbody scale rows, 22, (11) scale row reduction, present, (12) total scale rows, 294, (13) caudals, unreported, (14) maximum total length, 146 mm, (15) total length/midbody diameter, 35.1, (16) total length/tail length, 32.3, (17) dorsal color, dark brown, (18) ventral color, brown, (19) dorsum darker than venter, (20) overall, patternless (Tables 1–2); no molecular phylogenetic information is available.
Cyclotyphlops differs from all other genera in the Asiatyphlopinae in having a circular arrangement of head scales (in den Bosch & Ineich 1994). [HEDGES et al. 2014: 36] For an alternative diagnosis see PYRON & WALLACH 2014: 58. 
EtymologyThe generic name is a masculine noun formed from the Greek nouns kyklos (circle) and typhlops (the blind), in reference to the circular arrangement of head scales in this species. 
References
  • Hedges, S.B., Marion, A.B., Lipp, K.M., Marin, J. & Vidal, N. 2014. A taxonomic framework for typhlopid snakes from the Caribbean and other regions (Reptilia, Squamata). Caribbean Herpetology 49: 1–61 - get paper here
  • In Den Bosch H A J. Ineich I. 1994. The Typhlopidae of Sulawesi (Indonesia): A review with description of a new genus and a new species (Serpentes: Typhlopidae). Journal of Herpetology 28 (2): 206-217 - get paper here
  • Koch, A. 2011. The Amphibians and Reptiles of Sulawesi: Underestimated Diversity in a Dynamic Environment. In: F.E. Zachos and J.C. Habel (eds.), Biodiversity Hotspots. Springer, Berlin, p. 383-404
  • Lang, R. de & G. Vogel 2005. The snakes of Sulawesi. A field guide to the land snakes of Sulawesi with identification keys. Frankfurter Beiträge zur Naturkunde, 25, Edition Chimaira, Frankfurt am Main, 312 pp.
  • McDiarmid, R.W.; Campbell, J.A. & Touré,T.A. 1999. Snake species of the world. Vol. 1. Herpetologists’ League, 511 pp.
  • Pyron, R.A. & Wallach, V. 2014. Systematics of the blindsnakes (Serpentes: Scolecophidia: Typhlopoidea) based on molecular and morphological evidence. Zootaxa 3829 (1): 001–081
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. Taylor and Francis, CRC Press, 1237 pp.
 
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