4 



(1993) retained the species in Argentinian lists. Study of old material identified as Herpetodryas 

 sexcarinatiis, showed it to be actually Chironius quadricarinatus maculoventris, with 4 and 8 rows of keeled 

 dorsal scales. This could be the cause of misidentification. Dixon et al. (1993) include Herpetodryas 

 sexcarinatus and Chironius sexcarinatiis in the synonymy of Chironius quadricarinatus maculoventris. 



Pseudoboa nigra (Dumeril, Bibron & Dumeril, 1854): Without any voucher material available Bailey (1970 

 a) included this species in the Argentinian fauna, and states that this species reaches northern Corrientes. 

 Abalos & Mischis (1975) included Misiones in its distribution. In an exhaustive revision of colubrids from 

 Corrientes and Misiones and several field trips to these provinces, Giraudo (1997) did not find any 

 specimens. 



Family Viperidae 



Bothrops atrox (Linnaeus, 1758): Mentioned for the first time by Serie (1915) based on a young specimen, 

 the citation was repeated by later authors. Williams & Francini (1991) stated the necessity of confirmation 

 and Cei (1991) does not mention the species. We assume that the original reference was a misidentification 

 of Bothrops moojeni that was described later. Williams & Francini (1991) and Cei (1993) arrived at the same 

 conclusion. 



2- Species of confirmed presence in Argentina 



Family Typlilopidae 



Typhi ops Op pel, 1811 



Typhlops Oppel, 1811. Ordnungen, Familien und Gattungen der Reptilien: 54. 

 Type species: Anguis lumbricalis Linnaeus, 1766. Subsequent designation, Fitzinger, 1843: 24. 



Typhlops brongersmiamis Vanzolini 1972 



Typhlops brongersmai Vanzolini, 1972. Zool. Meded. (Leiden) 47: 27. 



Typhlops brongersmiamis Vanzolini, 1976. Pap. Avulsos Zool. 29 (24): 247. 

 Type locality: Barra de Itaipe, llheus, Bahia, Brazil. 



Distribution: Buenos Aires, Chaco, Cordoba, Corrientes, Entre Ri'os, Formosa, Misiones, Salta, Santa Fe 

 and Tucuman (Cruz & Scrocchi, 1989; Dixon et al., 1993; Giraudo & Quaini, 1997). Wide distribution in 

 South America, from Amazon River to Argentina and from Peru and Ecuador to Colombia and Guayanas 

 (Dixon & Hendricks, 1979; Achaval & Olmos, 1997). Chaquena, Espinal and Paranaense provinces. 

 Comments: We do not include this species in La Rioja where it was listed by Williams & Francini (1991), 

 because this reference is based on a specimen from Estancia Breyer, Patquia, La Rioja, also mentioned by 

 Dixon & Hendricks (1979). These latter authors and others (Scrocchi, 1990; Giraudo & Scrocchi, 1998) have 

 noted that the data for this locality are incorrect. In Estancia Breyer, there was a herpetological collection 

 with material coming from different localities. Later, the various specimens were deposited in different 

 museums of the United States, and they were recorded as having been collected in La Rioja. 



Family Leptotyphlopidae 



Leptotyphlops Fitzinger 1843 

 Stenostoma Wagler, 1824 (preoccupied by Stenostoma Latreille, 1810). In Spix Sp. Nov. Serp. Bras.: 

 68. fig.3 pl.5. 



Leptotyphlops Fitzinger, 1843. Syst. Rept.: 24. 

 Bucephalus Fitzinger, 1843. Syst. Rept.: 24. 



Catodon Dumeril & Bibron, 1844 (preoccupied by Catodon Linnaeus, 1761). Erp. Gen. 6: 318. 

 Epictia Gray, 1845. Cat. Liz. Brit. Mus.: 139. 

 Glauconia Gray, 1845. Cat. Liz. Brit. Mus.: 139. 

 Rena Baird & Girard, 1853. Cat. N. Amer. Rept. 1:142. 

 Sabrina Girard, 1857. Proc. Acad. Nat. Sci. Philad. 1857: 181. 



Rhaniphostoma Jan, 1861 (preoccupied by Rhamphostoma Wagler, 1830). Arch. Zool. Anat. Fis. 1: 

 190. 



Tricheilostoma Jm, 1861. Arch. Zool. Anat. Fis. 1: 190. 



