1905. ] AMPHIBIANS AND REPTILES. 225 
Erythrolamprus and Oxybelis are likewise South and Central 
American genera, entering the Tierra Caliente; e. g. O. acwminatus 
from South America to Motzorongo in Vera Cruz, and through 
Guerrero to Mazatlan; it is also on the Tres Marias Islands. 
E. fissidens extends from Costa Rica along the Atlantic side of 
Mexico to Tamaulipas and thence into Texas. 
Conophis, South and Central American, with C. vittatus on the 
Isthmus and in Guerrero. 
Scolecophis.—The few species live in rather high altitudes. 
S. emule im the mountains of Chihuahua; S. michoacensis ; 
S. atrocinctus at Toluca (fide Cope) and in Guatemala. 
Homatocranium, with two dozen species, mostly in South and 
Central America, whence 8 Mexicans, chiefly on either side of the 
plateau, and north-eastwards, through Nuevo Leon into Texas. 
These last two genera are not arboreal. 
Stenorhina degenhardti from Kcuador into the Atlantic hot 
country. 
Manolepis puinani, hitherto known only from Jalisco, e. g. 
Cumbre de los Arrastrados, 8000 feet; I have found it on the 
Cumbre de los Cajones, south of Chilpancingo, in pine and oak 
forest, altitude 3000 feet. 
Petalognathus nebulatus. Of this South and Central American 
species I found one specimen in the forest of La Raya, south of 
Cordoba. 
AMBLYCEPHALID®.— With a few forms in South-eastern Asia, 
but many in South and Central America. Of the 20 species of 
Leptognathus, only L. elegans reaches the Isthmus of Tehuan- 
tepec. : 
Hiariy®.—Of the many species of the Neotropical genus Hlaps 
only 2 or 3 oceur in Mexico. ‘The commonest, #. fulvius, ranges 
from South Brazil far into the Eastern United States. In Mexico 
it seems to live in the whole southern half, including the plateau, 
e. g. Mexico and Guanajuato; it is curious that it has not yet 
been recorded from anywhere north of a line drawn from Mazatlan 
to Guanajuato and Tuxpan, but Cope mentions 2. ewrywanthus of 
Arizona from “ Chihuahua” and “Sonora.” #. elegans seems to 
range from Guatemala into the Atlantic Tierra Caliente near 
Jalapa. No Hlapine snakes occur in the Antilles. These 
“ Coralillos,” although well-known to be poisonous, are not feared 
because they do not bite unless handled clumsily ; when they bite 
they do not strike, but chew deliberately like our European 
Coronella. Although occasionally found basking, they lead a very 
retired life, preferring vegetation, hiding under rotten stumps, 
with a predilection for ants’ nests. They are practically nocturnal 
like nearly all the non-poisonous snakes which possess the same 
beautiful coloration; the combination of black and red rings has 
a most effacing effect in the dusk. 
Proc. Zoou. Soc.—1905, Vou, Il. No. XV. 15 
