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Phymaturus felixi LOBO, ABDALA & VALDECANTOS, 2010

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Higher TaxaLiolaemidae, Iguania, Sauria, Squamata (lizards) 
Subspecies 
Common Names 
SynonymPhymaturus felixi LOBO, ABDALA & VALDECANTOS 2010 
DistributionArgentina (Chubut)

Type locality: 108 km s of Paso de Indios, on provincial road 24. Departamento Paso de Indios, Chubut province, Argentina. [44° 37’ S, 69° 09’ W] Map legend:
Type locality - Type locality.
 
Reproductionvivparous 
TypesHolotype: MCN 1280 (fig. 1). male. Abdala, c.; f. Lobo; i. martinez oliver; s. Quinteros col.
Paratypes: mcn 1279, 1281‐83. one adult male, two juveniles (males), one adult female. same data as holotype. 
CommentDiagnosis: Phymaturus felixi belongs to the patagonicus group (sensu Etheridge, 1995) because it has flat imbricate superciliaries, non‐rugose dorsal scales on tail, subocular usually not fragmented and subocular supralabials separated by one scale row. The new species is distinguishable from all other species of the group by the following character combination: pattern of double longitudinal row of rectangular ocelli over dorsum, surrounded by thin black lines (and white lines, but less distinguishable) (figs. 1 and 2 in Lobo et al. 2010); the color of posterior surface of thighs is brown, variegated in black and speckled with small white spots; males showing slender transversal with lines on tibia (even in juvenile) (fig. 3); female with precloacal pores and both sexes exhibiting a bright orange color over chest, abdomen and ventral surfaces of thighs (individuals of P. patagonicus from el sombrero collected the same week lack this coloration) (fig. 2). The morphologically most similar species to Phymaturus felixi are P. castillensis and individuals (not all) of P. patagonicus from el sombrero, P. felixi differs from both in the following characters: Phymaturus felixi has more scales around midbody, mean = 216,8; sd = 10,1; r = 204‐228 (P. castillensis: mean = 184,7; sd = 13,9; r = 173‐200; P. patagonicus: mean = 183; sd = 12.9; r = 160‐213); Phymaturus felixi exhib‐ its (all specimens) a pattern of ocelli marked by black lines, variegated posterior surfaces of thighs with three colors: black, white and brown, while in P. castillensis and P. patagonicus ocelli are vague and poorly marked, and in the case of P. patagonicus they are absent in most specimens, posterior surfaces of thighs are white or light gray with small and scarce white spots (not brown, no variegation). Phymaturus felixi differs from P. calcogaster and P. somuncurensis because their common dorsal pattern consists of a brown to black dorsal background speckled with Lobo, f. et al. 103 white spots, both species lack the dorsal pattern form‐ ing ocelli and their throats are strongly variegated. P. indistinctus and P. videlai have a common pattern formed by a brown dorsal background speckled with small markings in black; P. nevadoi and P. payuniae exhibit a white spotted pattern without dorsal ocelli, with the exception of females belonging to the second species (but those are not marked with black lines). Phymaturus felixi differs from P. excelsus and P. spectabilis because both species have their dor‐ sal pattern formed by a double longitudinal row of ocelli drawn on a homogeneous black or dark brown background. P. manuelae shows its occellated pattern (particularly well‐developed in females) margined with black thick lines, and in males the black color is widespread, background black color in P. felixi is restricted to males. in P. felixi there are small white spots scattered all over dorsum of trunk and tail. 
Etymologynamed after our colleague Felix Cruz, in recognition of his contribution to the knowledge of Liolaemid ecology and particularly because of his friendship to the authors. 
References
  • AVILA, LUCIANO JAVIER; CRISTIAN HERNAN FULVIO PEREZ, DANIEL ROBERTO PEREZ & MARIANA MORANDO 2011. Two new mountain lizard species of the Phymaturus genus (Squamata: Iguania) from northwestern Patagonia, Argentina. Zootaxa 2924: 1–21 - get paper here
  • Avila, Luciano Javier; Cristian Hernan Fulvio Perez, IGNACIO MINOLI & Mariana Morando 2014. A new lizard of the Phymaturus genus (Squamata: Liolaemidae) from Sierra Grande, northeastern Patagonia, Argentina. Zootaxa 3793 (1): 099–118 - get paper here
  • AVILA, LUCIANO JAVIER; LORENA ELIZABETH MARTINEZ & MARIANA MORANDO 2013. Checklist of lizards and amphisbaenians of Argentina: an update. Zootaxa 3616 (3): 201–238
  • Lobo, Fernando; Cristian Abdala and Soledad Valdecantos 2010. Taxonomic Studies of the Genus Phymaturus (Iguania: Liolaemidae): Description of Four New Species. South American J. Herp. 5 (2):102-126 - get paper here
  • LOBO, FERNANDO; CRISTIAN ABDALA & SOLEDAD VALDECANTOS 2012. Morphological diversity and phylogenetic relationships within a South-American clade of iguanian lizards (Liolaemidae: Phymaturus). Zootaxa 3315: 1–41 - get paper here
  • Minoli I, Morando M, Avila LJ 2015. Reptiles of Chubut province, Argentina: richness, diversity, conservation status and geographic distribution maps. ZooKeys 498: 103-126. doi: 10.3897/zookeys.498.7476 - get paper here
  • Scolaro, José Alejandro; Valeria Corbalán, Osvaldo Fabián Tappari<br />and Lorena Obregón Streitenberger 2016. LIZARDS AT THE END OF THE WORLD: A NEW MELANIC SPECIES OF PHYMATURUS OF THE PATAGONICUS CLADE FROM ROCKY OUTCROPS IN THE NORTHWESTERN STEPPE OF CHUBUT PROVINCE, PATAGONIA ARGENTINA (REPTILIA: IGUANIA: LIOLAEMIDAE) Boletín del Museo Nacional de Historia Natural, Chile, 65: 137-152
 
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