38 COLUBRID. 
and fifth (or fifth and sixth) entering the eye; four or five lower 
labials in contact with the anterior chin-shields, which are as long 
as the posterior. Scales in 31 to 35 rows, posterior dorsals faintly 
keeled. Ventrals 243-282; anal divided; subcaudals 91-119. 
Young pale brown above, with one or two dorsal series of large 
dark brown black-edged spots, and an alternating lateral series of 
smaller spots; two or three dark brown stripes on the occiput and 
nape ; two dark brown curved bands across the snout; adult uniform 
brown ; lower parts uniform yellowish. 
Total length 610 millim.; tail 115. Reaches a length of over 
1 metre. 
Mexico and Central America. 
a. Her. (Sc. 35; V. 264; Mexico. M. Sallé [C.]. 
ae 95). 
. Yg. (Se. 85; V. 254; City of Mexico. Mr. Doorman [C.]. 
* ‘O1). 
ce. Yg. (Sc. 35; V. 260; Mexico. 
C. 102). 
d. aon (Se. 85; V. 267; Mezquital del Oro, Dr. A.C. Buller [C.]. 
C. 100). Zacatecas. 
10. Coluber chlorosoma. 
Coluber chlorosoma, Giinth. Biol. C.-Am., Rept. p. 115, pl. xli. 
(1894). 
Rostral considerably broader than deep, just visible from above ; 
internasals nearly as long as broad, or broader than long, much 
shorter than the prefrontals ; frontal once and one fourth or once 
and one third as long as broad, as long as its distance from the 
rostral or the end of the snout, shorter than the parietals; loreal 
longer than deep ; one preeocular ; two postoculars ; temporals3+3 
or 3+4; eight or nine upper labials, fourth and fifth or fifth and 
sixth entering the eye; four lower labials in contact with the 
anterior chin-shields, which are not longer than the posterior. 
Scales in 33 rows, smooth or posterior dorsals faintly keeled. Ven- 
trals 247-260 ; anal divided ; subcaudals 107-112. Uniform pale 
greyish above and on the outer ends of the ventrals, white beneath. 
Total length 1050 millim. 
Mexico. 
a. & (V. 260; C.?).  Atoyak, Guerrero, Mr. H. H. Smith ) 
[C.]; F.D. ae 
man, Esq. Fd > 
b. 3 (V. 247; C.112). Amula, Guerrero, Mr. H. H. Smith | $ 
(C.]; F. D. God- | = 
man, Esq. [P.]. | 
ce. Head and neck. S. Ramon, Jalisco, Dr. A. C. Buller 
1500 ft. a 
d. 3 (V. 247; C. 107). 8S. Mexico. EP ‘Godman, Renem 
Should perhaps rank as a variety of the following species. 
