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Remarks on the South American Iguanid Lizard Liolaemus anomalus Koslowsky, and the Synonymy of Phrynosaura werneri Muller (Reptilia, Lacertilia, Iguanidae)

1979; The Society for the Study of Amphibians and Reptiles; Volume: 13; Issue: 2 Linguagem: Inglês

10.2307/1563926

1937-2418

J. M. Cei,

Bat Biology and Ecology Studies

A description of the neotype of Liolaemus anomalus Koslowsky is given, with comments about its relationships, geographical variation and ecology.The comparison of new samples of this poorly known tropidurine lizard with the holotype of Phrynosaura werneri Müller suggests their synonymy.In 1896 Koslowsky described the tropidurine iguanid lizard Liolaemus anomalus from "la provincia de La Rioja" in western Argentina.No further specimens have been referred to this species, and a careful check in the Museo de La Plata by Dr. A. Alonso de Aramburu (pers.comm.1976), where Koslowsky's types were presumably deposited, failed to reveal them.However, during my recent field work in the arid territories of La Rioja, San Juan and Mendoza provinces from about 28° to 32° South Lat.) in western Argentina, several specimens were found that agree closely with the description and figures of this species provided by Koslowsky.Furthermore a comparison of these specimens and others collected earlier in the same region with the holotype of Phrynosaura werneri Müller 1928 has revealed that this species is a synonym of Liolaemus anomalus.According to Donoso Barros (1969) Liolaemus lentus Gallardo (1966) is a synonym of Phrynosaura werneri-, thus lentus may also be placed in the synonymy of Liolaemus anomalus.Because of the apparent loss of the types of Liolaemus anomalus I have selected a neotype and neoparatypes for this species, and provided a detailed redescription of the species below.A brief discussion of its geographical variation and ecology, and of its possible relationships with similar forms are also given, and its allocation to the genus Liolaemus is discussed.