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Macropholidus huancabambae (REEDER, 1996)

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Higher TaxaGymnophthalmidae (Cercosaurinae), Sauria, Gymnophthalmoidea, Squamata (lizards) 
Common Names 
SynonymPholidobolus huancabambae REEDER 1996
Macropholidus huancabambae — TORRES-CARVAJAL & MAFLA-ENDARA 2013 
DistributionN Peru

Type locality: 33 km (by road) SW Huancabamba, elevation approximately 7000 ft (~2133 m) (west of Cruz Blanca; below summit of CordilleraHuancabamba), Departamento Piura, Peru.  
TypesHolotype: LSUM 27167, an adult male, collected on 28 November 1974 by Richard Thomas. 
DiagnosisDiagnosis: This species of Pholidobolus can be distinguished from all other members of the genus, except P. annec- tens (Parker, 1930) and P. anomalus (Muller,1923), by the presence of a single transparent palpebral disc in the lower eyelid. Those species not possessing a transparent palpebral disc have a lower eyelid composed of 3-6 opaque scales. Pholidobolus huancabambae can be dis- tinguished from P. annectens by the following characters. (1) Dorsal scales elon- gate (Fig. 2) (shorterin P. annectens); (2) dorsal scales strongly keeled (striated to weakly keeled in P. annectens); (3) pres- ence of a distinct, white labial stripe, ex- tending from the second or third supra- labial to the forelimb (generally absent in P. annectens; some specimens possessing a faint trace of a labial stripe that termi- nates anteriorto the anteriormargin of ear opening);(4)32-35 dorsalscalescounted from base of occipital to posteriormargin of hind limb insertion (39-44 in P. an- nectens); and (5) 20-24 ventral scales counted from posterior margin of collar fold to anterior margin of preanal scales
(25-27 in P. annectens). Pholidobolus huancabambaecan be distinguishedfrom P. anomalus by the following characters. (1) Dorsal scales strongly keeled (smooth anteriorly and weakly keeled posteriorly in P. anomalus); (2) usually two supra- oculars (three supraocularsin P. anoma- lus); (3) femoral pores absent (femoral pores present in P. anomalus); and, (4) smallersize, mean snout-vent length (SVL) of 47 mm (Table 1) [mean SVL of 58 mm (n = 3) in P. anomalus].
Superficially, Pholidobolus huanca- bambaealsocloselyresemblesP.prefron- talis Montanucci1973. However, P. huan- cabambae can be distinguished from P. prefrontalis by having a undivided, trans- parentpalpebraldisc in lower eyelid (com- posed of 3-6 opaque scales in P. prefrontalis) and usuallylacking prefrontal scales. Small, roundish prefrontals that do not touch each other are present in 17% of P. huancabambae; prominent prefrontals that often touch usually are present in P. prefrontalis [messed up formatting from JSTOR file]. 
  • Reeder, T. W. 1996. A new species of Pholidobolus (Squamata: Gymnophthalmidae) from the Huancabamba depression of northern Peru. Herpetologica 52 (2): 282-289. - get paper here
  • Torres-Carvajal, Omar; Paola Mafla-Endara 2013. Evolutionary history of Andean Pholidobolus and Macropholidus (Squamata: Gymnophthalmidae) lizards. Molecular Phylogenetics and Evolution 68 (2): 212–217 - get paper here
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