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Amphisbaena medemi GANS & MATHERS, 1977

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Higher TaxaAmphisbaenidae, Amphisbaenia, Lacertoidea, Sauria, Squamata (lizards)
Subspecies 
Common Names 
SynonymAmphisbaena medemi GANS & MATHERS 1977
Amphisbaena medemi— HOOGMOED & AVILA-PIRES 1991
Amphisbaena medemi — GANS 2005: 16 
DistributionColombia (La Guajira, Cesar, Atlántico)

Type locality: Colombia, Atlantico, Cienaga de Amajehuevo, Canal.  
Reproductionoviparous 
TypesHolotype: FMNH 165245; paratypes: FMNH 
DiagnosisDIAGNOSIS: A small to medium-sized form of Amphisbaena with the nasals totally separated or reduced to medial point contact by the ascending rostral which generally contacts the frontals. Specimens often have azygous fusion of postocular and parietal head scales; three equally sized supralabials; one medium, one large, and one small infralabial on each side; two postgenial and no postmalar rows of chin shields. There are 230-235 body annuli; 17-18 caudal annuli with the autotomy constriction falling on the fifth to seventh postcloacal annulus; 16 dorsal and 18 ventral segments per midbody annulus; and four large circular precloacal pores in both sexes. The specimens are brown dorsally, fading to a lighter color ventrally. The color is densest in the rectangular centers of each segment, with the dark area decreasing along the sides and dropping out by segments in the neck and caudal regions. Many specimens show a light nuchal band (Gans & Mathers 1967). 
CommentDistribution: map in HOOGMOED & AVILA-PIRES 1991 and Meza-Joya 2015. 
EtymologyNamed after Dr. Federico Medem (1912-1984) [obituary in Herpetologica 40: 468 [1984]. 
References
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Blanco-Torres, Argelina; Lina Báez S., Edgar Patiño-Flores, Juan M. Renjifo-R. 2013. Herpetofauna from the middle valley of the Ranchería river, La Guajira, Colombia. Rev. Biodivers. Neotrop. 3 (2): 113-22 - 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
  • Gans, C. & Mathers, S. 1977. Amphisbaena medemi, an intersting new species from Colombia (Amphisbaenia, Reptilia) with a key to the Amphisbaenians of the Americas. Fieldiana: Zoology 72: 21-46 - get paper here
  • 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
  • Meza-Joya, Fabio Leonardo 2015. New records of Amphisbaena medemi Gans & Mathers, 1977 (Squamata: Amphisbaenidae) from the Caribbean region of northern Colombia. Check List 11 (1): 1526 - 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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