Redescription of Ctenoblepharys adspersa Tschudi, 1845, and the taxonomy of Liolaeminae (Reptilia, Squamata, Tropiduridae). American Museum novitates ; no. 3142

Abstract

Ctenoblepharys adspersa is a highly derived ar- enicolous lizard that inhabits the sandy coast of central Peru.It differs from other Tropiduridae, and the outgroups Phrynosomatidae and Opluridae, in numerous autapomorphies ofthe skull and vertebral column, but shares no derived characteristics with either Phymaturus or Liolaemus oth- er than those that diagnose Liolaeminae.The re- lationships of Ctenoblepharys, Liolaemus, and Phymaturus are unresolved.All species of Liolae- minae that have been described in, or referred to Ctenoblepharys, other than C. adspersa, exhibit the synapomorphies that diagnose Liolaemus, and should be referred to that genus.All of the species that have been placed in the genera Abas, Ceiolaemus, Helocephalus, Pelusaurus, Phrynosaura, Velosaura, and Vilcunia and all ofthe species that have been placed in the subgenera Eulaemus, Rhytidodeira, Mesolaemus, and Ortholaemus also ex- hibit the diagnostic synapomorphies ofLiolaemus and, although some of these may represent mono- phyletic subsets of Liolaemus, they should not be used as formal names for taxa until their mono- phyletic status has been verified by cladistic analysis.Phymaturus indistinctus, P. nevadoi, P. pa- tagonicus, P. payunae, P. somuncurensis, and P. zapalensis, all formerly subspecies of P. patagon- icus, are elevated to species status. RESUMENCtenoblepharys adspersa es un lagarto arenicolo altamente derivado que habita en la costa arenosa de Centro Per'u.Se diferencia de otros Tropidur- idae y de los grupos externos Phrynosomatidae y Opluridae en numerosas autapomorfias del craneo y de la columna vertebral, pero no comparte nin- gun caracter derivado con Phymaturus o Liolae- mus excepto los que se diagnostican Liolaeminae.Las relaciones de Ctenoblepharys, Liolaemus, y Phymaturus no estan resueltas a(un.Todas las es-