Full length paper

A new species of Liolaemus (Reptilia: Squamata: Tropiduridae) from Mendoza province, Argentina

Cuadernos de Herpetología 15 (1): 3-15, 2001 rether@sunstroke.sdsu.edu

Abstract

A new species,of the Liolaemus darwinii complex is described from central Mendoza Province, Argentina. It most closely resembles L. olongasta and L. laurenti in that adult males have black pigment in the antehumeral fold and scapular spots that are not enlarged. It differs from these species in having a smaller adult body size, a higher number of midbody scales, a shorter tail, more precloacal pores in males, and a different adult male ventral body pattern. Its range is bordered by L. darwinii on the north in northern Mendoza and San Luis provinces, and on the south in western La Pampa and northwestern Neuquén and Río Negro provinces, but it is unknown whether these northern and southern populations of L. darwinii are separated by the range of the new species. Cladistic analyses based on behaviour, morphology, and DNA sequences yield conflicting phylogenies, but agree that the new species is a member of the boulengeri group, with closest affinities to L. darwinii, L. olongasta, and L. laurenti.

Key words:

Liolaemus grosseorum; lizard; taxonomy; Mendoza; Tropiduridae

Received: Feb. 23, 2001 ▪ Accepted: May. 24, 2001

Etheridge, R. 2001. A new species of Liolaemus (Reptilia: Squamata: Tropiduridae) from Mendoza province, Argentina. Cuadernos de Herpetología 15: 3-15.