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Anolis charlesmyersi KÖHLER, 2010

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Higher TaxaDactyloidae, Iguania, Sauria, Squamata (lizards) 
Common Names 
SynonymAnolis charlesmyersi KÖHLER 2010
Anolis pentaprion — WETTSTEIN 1934
Anolis pentaprion — TAYLOR 1956 (part.),
Anolis pentaprion — WILLIAMS & SMITH 1968 “1966”
Anolis pentaprion — MYERS 1971 (part.)
Anolis pentaprion pentaprion — ETHERIDGE 1959 (part.)
Norops charlesmyersi — NICHOLSON et al. 2012 
DistributionPanama, Costa Rica

Type locality: trail to Río Majagua, Los Algarrobos, 8.48927°N, 82.43333°W, ca. 130 m elevation, Province Chiriquí, Panama.  
TypesHolotype: SMF 89688, adult male; collected by Sebastian Lotzkat and Andreas Hertz on 23 April 2009. 
DiagnosisDiagnosis. A medium-sized species (SVL in largest specimen examined 78.0 mm in males, 76.7 mm in females) of the genus Anolis (sensu Poe, 2004) that differs from all Central American anoles except A. beckeri, A. cristifer, A. fungosus, A. pentaprion, A. salvini, A. utilensis by (1) having (1) extremely short hind legs (fourth toe of adpressed hindlimb usually reaching to level of tympanum; ratio shank length / head length 0.49–0.84); (2) smooth, juxtaposed ventral scales; (3) a relatively short tail (ratio tail length / SVL 1.0–1.5). Anolis charlesmyersi differs from A. beckeri by having a pronounced serrated caudal crest (versus lacking a pronounced serrated caudal crest). Anolis charlesmyersi differs from A. cristifer by having a double row of slightly enlarged middorsal scales, not forming a serrated crest (versus a serrated middorsal crest, at least on posterior portion of dorsum, present in A. cristifer). Anolis charlesmyersi differs from A. fungosus by lacking bony parietal protuberances (versus having a pair of small bony parietal protuberances posterior and lateral to interparietal plate). Anolis charlesmyersi differs from A. pentaprion by having a brick red (in life) dewlap with few large widely spaced gorgetal scales scattered across the dewlap or in loosely arranged rows with 4–9 widely spaced scales (versus a pink dewlap with purple pigment between rows of gorgetal scales and with regular rows of 17–25 small narrowly spaced gorgetal scales). Anolis charlesmyersi differs from A. salvini by having smooth, obliquely conical ventral scales (versus keeled), lacking a dark interorbital bar (versus present), and lacking enlarged postcloacal scales (versus males with a pair of greatly enlarged postcloacal scales). Anolis charlesmyersi differs from A. utilensis by having the proximal subdigital scales of toes differentiated as slightly broadened lamellae (versus those scales granular) and by having a pronounced serrated caudal crest (versus lacking a pronounced serrated caudal crest).
CommentSpecies group: Norops auratus Species Group (fide Nicholson et al. 2012) 
EtymologyThe specific name is a patronym for Charles W. Myers in recognition of his important contributions to the herpetology of Lower Central America in general and to the understanding of the taxonomy and sytematics of the anoles of the pentaprion group in particular. 
  • Arias, Erick; Federico Bolaños 2014. A checklist of the amphibians and reptiles of San Isidro de Dota, Reserva Forestal Los Santos, Costa Rica. Check List 10 (4): 870-877 - get paper here
  • Köhler, G. 2010. A revision of the Central American species related to Anolis pentaprion with the resurrection of A. beckeri and the description of a new species (Squamata: Polychrotidae). Zootaxa 2354: 1–18 - get paper here
  • NICHOLSON, KIRSTEN E. & GUNTHER KÖHLER 2014. A new species of the genus Norops from Darién, Panama, with comments on N. sulcifrons (Cope 1899) (Reptilia, Squamata, Dactyloidae). Zootaxa 3895 (2): 225–237 - get paper here
  • NICHOLSON, KIRSTEN E.; BRIAN I. CROTHER, CRAIG GUYER & JAY M. SAVAGE 2012. It is time for a new classification of anoles (Squamata: Dactyloidae). Zootaxa 3477: 1–108
  • Poe, S. 2013. 1986 Redux: New genera of anoles (Squamata: Dactyloidae) are unwarranted. Zootaxa 3626 (2): 295–299 - get paper here
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