You are here » home advanced search search results Geocalamus modestus

Geocalamus modestus GÜNTHER, 1880

Can you confirm these amateur observations of Geocalamus modestus?

Add your own observation of
Geocalamus modestus »

We have no photos, try to find some by Google images search: Google images

Higher TaxaAmphisbaenidae, Amphisbaenia, Lacertoidea, Squamata (lizards)
Common NamesE: Mpwapwa Wedge-snouted Worm Lizard 
SynonymGeocalamus modestus GÜNTHER 1880: 234
Geocalamus modestus — LOVERIDGE 1923
Geocalamus modestus — LOVERIDGE 1941: 402
Geocalamus modestus — BROADLEY & HOWELL 1991: 20
Geocalamus modestus — GANS 2005: 31
Geocalamus modestus — SPAWLS et al. 2018: 318 
DistributionC Tanzania (Mpwapwa, Ikikuyu)

Type locality: Mpwapwa, Ugogo, Tanzania.  
TypesSyntypes: BMNH R1946.9.1.10– 
DiagnosisDescription (genus): Head compressed, snout laterally compressed but rounded; nostril lateral or slightly inferior, pierced in a small nasal; a gular fold; no vertebral line, a faint lateral line, no ventral line; pectoral segments slightly enlarged forming an angular series; preanalpores; tail cylindrical, obtuse.

Description. Rostral large, its posterior angle inserted between the prefrontals; nasal distinct, or incompletely separated from first labial anteriorly, between rostral, first and second labials, and prefrontal; a pair of prefrontals; frontal moderate, distinct, or incompletely separated from the prefrontals; a pair of postfrontals; no parietals (being fused with postfrontals); a pair of rudimentary oceipitals; no supraocular; no preocular; ocular moderate, eye distinct; 3 upper labials, first small, second and third larger, subequal; 3-4 temporals descending to the commissure of the mouth; mental moderate, subquadrangular; 3 lower labials, first small, second and third subequal; postmental moderate; 4 chin shields in anterior row, 7 in posterior row, or outermost of the two rows fused to form an elongate sublabial; 238-241 annuli on body, 29 on tail; 34-38 (16-18 + 18-20) segments in a midbody annulus, the 2 median ventral segments nearly equilateral; pectoral segments feebly differentiated, slightly longer than broad, forming an anteriorly-directed angular series; 6 anals; 3-4 preanal pores.

Diagnosis: 34-38 segments in a midbody annulus; 238-241 annuli on body, 29 on tail; 3 upper labials; 3-4 preanal pores.

Dentition. Premaxillary teeth 3, maxillaries 3-3, mandibulars 7-7.

Coloration. Above uniformly violet brown (plumbeous in life) except for the intersegmental grooves which are white; below pure white (somewhat transparent in life).

Measurements. Total length 274 (240 + 34) mm.

Source: Loveridge 1941. 
CommentType species: Geocalamus modestus is the type species of the genus Geocalamus GÜNTHER 1880: 234. 
  • Broadley, D. G. & HOWELL, K. M. 1991. A check list of the reptiles of Tanzania, with synoptic keys. Syntarsus 1: 1—70
  • Gans C; Kraklau D M 1989. Studies on amphisbaenians (Reptilia) 8. Two genera of small species from east Africa (Geocalamus and Loveridgea). American Museum Novitates (2944) : 1-28 - get paper here
  • Gans, C. 2005. CHECKLIST AND BIBLIOGRAPHY OF THE AMPHISBAENIA OF THE WORLD. Bull. Am. Mus. Nat. Hist. 289: 1-130 - get paper here
  • Günther,C.A.L.G. 1880. Description of new species of reptiles from eastern Africa. Ann. Mag. nat. Hist. (5) 6 (33): 234-238 - get paper here
  • Loveridge, A. 1923. Notes on East African lizards collected 1920-1923 with the description of two new races of Agama lionotus Blgr. Proc. Zool. Soc. London 1923: 935-969 - get paper here
  • Loveridge, ARTHUR 1941. Revision of the African lizards of the family Amphisbaenidae. Bull. Mus. Comp. Zool. Harvard 87: 353-451. - get paper here
  • Spawls, S.; Howell, K.; Drewes, R.C. & Ashe, J. 2002. A field guide to the reptiles of East Africa. Academic Press, 543 pp. [reviews in HR 34: 396 and Afr. J. Herp. 51; 147] - get paper here
  • Spawls, Steve; Kim Howell, Harald Hinkel, Michele Menegon 2018. Field Guide to East African Reptiles. Bloomsbury, 624 pp. - get paper here
External links  
Is it interesting? Share with others:

As link to this species use URL address:

without field 'search_param'. Field 'search_param' is used for browsing search result.

Please submit feedback about this entry to the curator