620 SYNOPSES AND DESCRIPTIONS, 
Bright vermillion, punctulate with brown, passing through orange to 
golden on the belly. Head and neck for ten scales backward black, 
Labials bordered and traversed by yellow lines. Parietals dotted with 
yellow. (rom descr.) Guadalaxara, Mexico, 
TACHYMENIS PROTEROPS. 
CoNn1oPHaNES PROTEROPS Cope, 1860, Pr. Ac. N. Sc., Phil., 249. 
Small; head scarcely distinct from the neck, muzzle not elevated. 
Anterior plates of the head small. Loreal a little longer than high. 
One pre, two postoculars. Labials seven, third and fourth in orbit. Fron- 
tal elongate. Parietals long. Infralabials nine. Submentals two pairs, 
subequal. Ventrals 130. Anal bifid. 
Light brown above, every scale densely punctulated with darker, 
especially near the margins. From the first to the fourth rows this is 
deeper, giving the sides a darker shade. The vertebral rows of scales 
from the occipitals to the end of the tail are also darker. Top of the head 
densely and obscurely vermiculated and punctulated. The dark shade on 
the fourth row of scales becomes a band anteriorly, and is bordered above 
and below with white on the neck. The lower white border is continued 
to the eye, and is bordered above on the labials with black. The upper 
white border is discontinued on the neck, but reappears as a spot three 
scales back of the occipitals. Inferior half of rostral, upper and lower 
labials, chin, throat, and belly, light brownish-yellow, densely punctulated 
with brown. Each labial with a darker spot in the center. Fewer punc- 
tulations on the urosteges. (From descr.) Jalapa, Mexico. 
TACHYMENIS FISSIDENS. 
CoRONELLA FISSIDENS Giinther, 1858, Cat. Col. Snakes, 36. 
Scales in 19—21 rows. Anal bifid. Labials eight, fourth and fifth in 
orbit. 
Back greyish-olive, the darker coloration of the sides well defined to- 
wards the back. A black streak, sometimes white-edged beneath, through 
the eye. On both sides of the anterior part of the trunk a white band, 
beginning at the occiput, and soon disappearing. Belly white, on the 
sides some irregular small black spots. Hinder maxillary tooth longest, 
grooved. Mexico. 
