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Liolaemus grosseorum ETHERIDGE, 2001

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Higher TaxaLiolaemidae, Iguania, Sauria, Squamata (lizards)
Common Names 
SynonymLiolaemus grosseorum ETHERIDGE 2001
Liolaemus grosseorum — PEREZ et al. 2011
Liolaemus darwini (part) — CEI 1986: 217.
Liolaemus darwinii (part) — ETHERIDGE 1993: 148
Liolaemus sp. — HALLOY et al. 1998: 4.
Liolaemus darwinii — SCHULTE et al. 2000: 75
Liolaemus sp. — ETHERIDGE 2000: 338
Liolaemus grosseorum — AVILA et al. 2004 
DistributionArgentina (Mendoza, Neuquén, Rio Negro, La Pampa)

Type locality: “southeastern shore of Lago Nihuil (35 02’ 36.2” W- 68 ̊ 40’ 42.2” S, 1380 m), Department of San Rafael, Mendoza Province, Argentina".  
TypesHolotype: FML 3444 (Fundación Miguel Lillo) 
DiagnosisDiagnosis: Liolaemus grosseorum is a member of the boulengeri group of Liolaemus (Etheridge, 1995), characterized by the presence of a patch of enlarged scales on the posterior medial surface of the thighs. It differs from other members of the boulen- geri group, except L. cuyanus, L. darwinii, L. laurenti, and L. olongasta, in that adult males have black pigment within the ante- humeral fold. The largest adult male is smaller (55 mm SVL) than that of any of these species (L. darwinii: 62 mm, L. lau- renti: 63 mm, L. olongasta: 67 mm, and L. cuyanus: 117 mm), and the mean number of precloacal pores (7.7) is significantly higher than the means (6.2 - 7.0) of the species other than L. cuyanus (8.3) (Table 3). The new species further differs from L. cuyanus in having distinct dorsolateral light stripes. The absence of large, black, pre- and postscapular spots in adult males dis- tinguish it from L. darwinii. The presence of prominent dorsolateral stripes, which are distinctly lighter than the background color and, a significantly shorter tail (Table 1), distinguish the new species from L. laurenti (Etheridge, 1992; Plate I and II). In addition, L. laurenti and L. cuyanus lack the ventral bifurcation of the dark pigment of the antehumeral fold found in L. grosseorum and L. olongasta. The dorsal color pattern of L. grosseorum most closely resembles that of L. olongasta, but the ventral pattern of adult male L. grosseorum lacks the bold reticulation on the throat and chest of adult male L. olongasta (Etheridge, 1993; Plate 2.6). Compared with L. olongasta, L. grosseorum has a significantly lo- wer mean number of midbody and middorsal scales (Table 2) and azygous frontal sca- les (Table 3). Black pigment may be pre- sent on the sides of the neck in L. canqueli, L. fitzingerii, L. melanops, and L. xanthoviridis, but it is entirely or mostly ante- rior to the antehumeral fold (Etheridge, 2000). These species also have a much greater maximum SVL (83 - 102 mm) than L. grosseorum, and have expanded rather than straight-sided marginal tooth crowns. Liolaemus telsen exhibits some superficial resemblance to L. grosseorum, but differs in lacking black pigment within the antehumeral fold, and in having a greater number (74 - 78) scales around midbody [from ETHERIDGE 2001]. 
CommentMember of the darwinii group of Liolaemus. 
EtymologyThis species was first recognized as distinct by Monique Halloy, and at her request is being named to acknowledge the invaluable assistance given her in the field by her husband and children: Constantino, Ana, and Paul Grosse. 
  • Abdala, C.S. 2005. Una nueva especie del género Liolaemus perteneciente al complejo darwinii (Iguania:Liolaemidae) de la provincia de Catamarca, Argentina. Revista Española de Herpetologia 19:5-17 - get paper here
  • Abdala, C.S. 2007. Phylogeny of the boulengeri group (Iguania: Liolaemidae, Liolaemus) based on morphological and molecular characters. Zootaxa 1538: 1-84 - get paper here
  • ABDALA, CRISTIAN SIMÓN; ANDRÉS SEBASTIÁN QUINTEROS,, FEDERICO ARIAS, SABRINA PORTELLI & ANTONIO PALAVECINO 2011. A new species of the Liolaemus darwinii group (Iguania: Liolaemidae) from Salta Province, Argentina. Zootaxa 2968: 26–38 - get paper here
  • AVILA, L. J. & MORANDO, M. & PEREZ, C. H. F. & SITES, J. W. 2004. New records and natural history notes of lizards of the genus Liolaemus in northern Patagonia [Short Note]. Herpetozoa 17: - get paper here
  • Avila, Luciano J., Cristian H. F. Pérez and Mariana Morando. 2008. First records for Liolaemus grosseorum Etheridge, 2001 in eastern Neuquén province, Patagonia, Argentina. Herpetozoa 21 (1/2):86-87 - 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 - get paper here
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Brizio, M V; Perez, D R & Avila, L J; 2019. Liolaemus grosseorum Diet. Herpetological Review 50 (3): 579 - get paper here
  • BRIZIO, M. V., MINOLI, I., PÉREZ, D. R., & AVILA, L. J. 2023. Reptiles of the Auca Mahuida natural protected area, Argentina. Rev. Mus. Argentino Cienc. Nat., n.s. 25(1): 133-142 - get paper here
  • Etheridge, Richard 2001. A new species of Liolaemus (Reptilia: Squamata: Tropiduridae) from Mendoza Province, Argentina. Cuadernos de Herpetología 15 (1): 3-15 - get paper here
  • Perez, C.H.F.; N. Frutos; M. Kozykariski; M. Morando; D.R. Perez; L.J. Avila. 2011. Lizards of Rio Negro Province, northern Patagonia, Argentina. Check List 7 (3): 202-219 - get paper here
  • Pérez, Cristian Hernán Fulvio; Minoli, Ignacio; Morando, Mariana; Avila, Luciano Javier 2018. New records of Liolaemus grosseorum Etheridge, 2001 (Squamata, Liolaemini) in Neuquén and La Pampa Provinces, Argentina. Cuad. herpetol. 32 (2): 141-143 - get paper here
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