Distribution: Colombia, Cundinamarca. 
L. beui (Amaral), fide Dixon & Kofron, 1985, Ibid. [1985] 
4:258. Distribution: Brasil, Mato Grosso to Parana, and 
Brasilian border of Paraguay. 
L. guentheri (Boulenger) = L. wilderi (Garman), fide Dixon & 
Koftron, 19854" Lbidks [09i83) 8147/25 1. 
L. incertus (Amaral) = L. ternetzii (Boulenger), fide Dixon & 
Kofron, 1985, Ibid. [1983] 4:255. 
L. schubarti Vanzolini. Distribution: known from the type 
locality and from Sapucai, Sao Paulo (22 19°S 46 42°W). 
L. ternetzii (Boulenger). Distribution: central Brasil and 
Paraguay. Comment: specimens from Para, Brasil (Cunha & 
Nascimento, 1975, Bol. Mus. Paraense Emilio Goeldi 
(Zool.) 82:1) are closer to beui than to ternetizii, 
but seem to represent still another species, perhaps 
incertus. 
L. wilderi (Garman). Distribution: Brasil, states of Minas 
Gerais and Rio de Janeiro. 
Lygophis Fitzinger, 1843 = Liophis Wagler, fide Dixon, 1980, 
Milwaukee Publ. Mus. Contrib. Biol. Geol. (31):1-40. 
The key contains disabling errors, e.g. L. coralliventris has 17 
dorsal scale rows. Specimens should be checked against the 
descriptions of geographically plausible species, after exclusion 
of the forms listed below. 
L. antioquiensis (Dunn) = Saphenophis antioquiensis (Dunn, 
1943); fide Myers, 1973, Amer. Mus. Novit. 2522:1-37. 
L. boursieri (Jan) = Saphenophis boursieri (Jan, 1867), fide 
Myers, 1973, Ebid. 25221317. 
- lineatus dilepis Cope, 1862, Proc. Acad. Nat. Sci. 
Philadelphia 1862:81. 
L. tristriatus (Rendahl & Vestergren) = Saphenophis 
tristriatus (Rendahl & Vestergren), fide Myers, 1973, 
Pbiiidts) 9215) 21272 We 7. 
|r 
Lystrophis Cope, 1826. 
L. nattereri (Steindachner). Revalidated by Hoge, Cordeiro & 
Romano, 1976, Mem. Inst. Butantan [1975] 39:37-50. 
Masticophis Baird & Girard, 1853. 
M. mentovarius D., B & D. See Johnson, 1977, J. Herpetol. 
11(3):287-309, for a key to all subspecies. 
Mastigodryas Amaral, 1935. 
M. bifossatus subspecies do not seem biologically sound. 
M. dorsalis (Bocourt). Distribution: also Baja Verapaz, 
Atlantic versant of Guatemala (MVZ). 
Micrurus Wagler, 1824. Includes Leptomicrurus Schmidt, 1937, fide 
Romano, 1972, Mem. Inst. Butantan [1971] 35:111-15. Number of bands 
is often more variable than range given in key. List of “all 
species in Roze, 2983, Ibid. [1982] 46:305-38. 
M. albicinctus Amaral = M. ornatissimus, fide Cunha & 
Nascimento, 1982, Bol. Mus. Paraense Emilio Goeldi 
AT. 
