23 
DISTRIBUTION: Chaco-Bonariesian Plain of Argentina, Bolivia, and 
Paraguay. (see figure 2, p. 391, Dixon and Thomas 1982). 
Liophis taeniurus Tschudi 
Liophis taeniurus Tschudi 1845:164. Type locality: Peru, in der heissen 
waldregion. 
DISTRIBUTION: Middle and upper elevations of the Andes in southern Ecuador, 
south through Pert to the Cochabamba region of Bolivia. 
SUBSPECIES: None described; possibly two or more suggested from recent 
analysis of data from additional material. 
Liophis triscalis (Linnaeus) 
Coluber triscalis Linnaeus 1758:224. Type locality: India (in error). 
Coluber corallinus Linnaeus 1758:223. Type locality: Asia (in error). 
Liophis triscalis, Boulenger 1894:129. 
DISTRIBUTION: Known only from the Leeward Island of Curacao. (see figure 1, 
p; 2975.Dixon) 1981): 
Liophis typhlus (Linnaeus) 
Coluber typhlus Linnaeus 1758:218. Type locality: India (in error). 
Xenodon isolepis Cope 1870:155. Type locality: Pebas, Ecuador (= Perd) 
Opheomorphus brachyurus Cope 1887:57. Type locality: Chupada, Mato Grosso, 
Brasil. 
Liophis elaeoides Griffin 1916:187. Type locality: Prov. del Sara, Bolivia. 
Liophis macrops Werner 1925:57. Type locality: Paramaribo, Suriname. 
Liophis typhlus, Dixon 1980:16. 
DISTRIBUTION: Rainforests of the Guiana Shield and Amazon Basin, also the 
Chaco and Cerrado of Bolivia, Brasil, and Paraguay. (see figure 1, p. 175, 
Dixon 1987). 
SUBSPECIES: Three. 
l.a_ Ventrals 133-163 (x= 147.3); juveniles and adults 
with dark paravertebral chevron marks ........ typhlus typhlus 
b Ventrals 158-172 (x= 163.5); juveniles and adults 
without? dark ichevnon iMaricSiee ru. cteith at tatalciens aeetebotattode choplcteush teueve ote. os 
2.a Subcaudals 40-49 (x= 44.4); tail/total length ratios 
Os 1A O-OR1GO? (R= Or 4O seer tie steRiet cece typhlus brachyurus 
b Subcaudals 49-56 (x= 52.0); tail/total length ratios 
ONGO= 04200) m=O? Us) rieate 6 ap2'cs eiecs aser ors overseers typhlus elaeoides 
Liophis typhlus typhlus (Linnaeus) 1758. 
SYNONYMS: isolepis Cope; macrops Werner. 
