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Amphisbaena gracilis STRAUCH, 1881

IUCN Red List - Amphisbaena gracilis - Data Deficient, DD

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Higher TaxaAmphisbaenidae, Amphisbaenia, Lacertoidea, Squamata (lizards)
Common NamesE: Slender Worm Lizard 
SynonymAmphisbaena gracilis STRAUCH 1881
Amphisbaena gracilis — GONZALEZ-SPONGA & GANS 1971
Amphisbaena gracilis — GORZULA & SEÑARIS 1999
Amphisbaena gracilis — GANS 2005: 14 
DistributionVenezuela (Bolivar)

Type locality: ‘‘Unbekannt, wahrscheinlich Süd-Amerika’’ [= unknown, probably South America]  
TypesHolotype: ZISP (ZIL) 5517 
DiagnosisDiagnosis. A small to medium-sized Amphisbaena with a bluntly rounded, very wide first body annulus. Large and pentagonal parietals in broad contact along midline; two large supralabials; two large and one very small infralabials on each side, and no malars. There are 224 (holotype) to 248 body annuli; 21-22 (est.) caudal annuli with autotomy constriction falling on sixth to seventh postcloacal annulus. Tail medium long, rounded and of gradually reducing diameter. Four large suboval precloacal pores occur in all specimens.

The color is a uniform dark brown (with violet overtones-Strauch) dorsally and ventrally, with pale sutures on head, and faintly prognathous snout, covered dorsally by enlarged shields up to nuchal region and including dorsalmost segments of cephalic and caudal surfaces (Gonzalez-Sponga & Gans 1971; may need a check for OCR errors). 
CommentDistribution: map in HOOGMOED & AVILA-PIRES 1991. 
EtymologyNamed after Latin “gracilis”, meaning small or lanky, or gracile. 
  • Gans, C. 2005. CHECKLIST AND BIBLIOGRAPHY OF THE AMPHISBAENIA OF THE WORLD. Bull. Am. Mus. Nat. Hist. 289: 1-130 - get paper here
  • Gonzales Sponga, M.A. & Gans C. 1971. Amphisbaena gracilis Strauch rediscovered (Amphisbaena: Reptilia). Copeia 1971 (4): 589-595 - get paper here
  • Gorzula S J 1985. Geographic distribution. Amphisbaena gracilis (Morrona). Herpetological Review 16 (3): 83. - get paper here
  • Gorzula, Stefan & Senaris, J. Celsa 1999. In: Contribution to the herpetofauna of the Venezuelan Guayana. I: a data base. Scientia Guaianae, Caracas, No. 8 [1998], 269+ pp.; ISBN 980-6020-48-0
  • Hoogmoed M.S.; de Avila-Pires T C S 1991. A new species of small Amphisbaena (Reptilia: Amphisbaenia: Amphisbaenidae) from western Amazonian Brazil. BOLETIM DO MUSEU PARAENSE EMILIO GOELDI SERIE ZOOLOGIA 7 (1): 77-94
  • Hoogmoed, Marinus S.; Roberta R. Pinto, Wáldima Alves da Rocha, and Emiliane G. Pereira 2009. A NEW SPECIES OF MESOBAENA MERTENS, 1925 (SQUAMATA: AMPHISBAENIDAE) FROM BRAZILIAN GUIANA, WITH A KEY TO THE AMPHISBAENIDAE OF THE GUIANAN REGION. Herpetologica 65 (4): 436 - get paper here
  • RIVAS, GILSON A.; CÉSAR R. MOLINA, GABRIEL N. UGUETO, TITO R. BARROS, CÉSAR L. BAR- RIO-AMORÓS & PHILIPPE J. R. KOK 2012. Reptiles of Venezuela: an updated and commented checklist. Zootaxa 3211: 1–64 - get paper here
  • Strauch,A. 1881. Bemerkungen über die Eidechsenfamilie der Amphisbaeniden. Mel. Biol. Acad. Imp. Sci. St. Petersbourg 11: 355-479 (reprinted: Bull. Acad. Imp. Sci. St. Petersbourg 28: 45-131) - get paper here
  • Vanzolini, P.E. 2002. AN AID TO THE IDENTIFICATION OF THE SOUTH AMERICAN SPECIES OF AMPHISBAENA (SQUAMATA, AMPHISBAENIDAE). Pap. Avul. Zool., Sao Paulo 42(15):351-362 - get paper here
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