GENUS LIOPHIS Wagler, 1830:187 
Liophis almadensis (Wagler) 
Natrix almadensis Wagler 1824:30. Type locality: Almada, Bahia, Brasil. 
Natrix almada Wagler 1824:30. (as above) 
Liophis conirostris Giinther 1854:46. Type locality: Brasil and Bahia. 
L. (iophis) verecundus Jan 863:300. Type locality: unknown. 
Liophis wagleri Jan 1863:297. Type locality: Brasil and Bahia. 
Liophis (Lygophis) y-graecum Peters 1882:129. Type locality: Villa de 
Guaratinqueta, Sdo Paulo (Brasil). 
Trigonocephalus scolecomorphus Bacque 1906:116. Type locality: Asuncion, 
Paraguay. 
Liophis almadensis Wagler 1830:188. 
DISTRIBUTION: Chaco Boreal plant formation of Bolivia, all plant formations 
of Brazil except for Caatinga and Amazon rainforest; Paraguay except for 
cropland situations in central Paraguay. (published reports of this taxon 
from the state of Misiones, Argentina, have not been verified). 
SUBSPECIES: none described; possibly one undescribed cryptic subspecies in 
Argentina and western Bolivia. 
Liophis andinus Dixon 
Liophis andinus Dixon 1983:129. Type locality: Incachaca, 2500 m, Cochabamba, 
Bolivia. 
DISTRIBUTION: Known only from the type locality (Figure 2, p. 118, Dixon, 
1983). 
Liophis anomalus (Giinther) 
Coronella anomala Giinther 1858:37. Type locality: banks of the Rio Parana. 
Lygophis rutilis Cope 1862:80. Type locality: Rio Tigre, a tributary of the 
Rio Parana, Paraguay. 
Coronella pulchella Jan 1863:251. Type locality: Buenos Aires, Argentina. 
Liophis anomala Amaral 1925:7. 
DISTRIBUTION: Southern South America, from northwestern Argentina (Salta) 
east-southeast through Uruguay to Pérto Alegre, Brasil, south to the province 
of Buenos Aires, Argentina. 
Liophis atraventer Dixon and Thomas 
Liophis atraventer Dixon and Thomas 1985:260. Type locality: Boracéia, Sado 
Paulo, Brasil. 
DISTRIBUTION: Known only from the type locality (= Estacao Biologica da 
Boracéia) (figure 4, p. 188, Dixon, 1987). 
