MEXICAN HERPETOLOGICAL MISCELLANY—SMITH 393 
each scale black, and some larger dark marks medially; remainder of 
red interspaces with numerous black spots, smaller than a scale, at tips 
or bases of scales. 
Infralabial and lateral gular region with poorly defined, small 
black spots and fine black stippling; belly cream, unmarked save at 
ends of ventrals (black spotted, bands also encroaching) ; ventral 
surface of tail largely black, with irregular light areas and edges of 
caudals light, giving a mottled (not at all banded) appearance. 
Remarks.—The present species’ nearest relative appears to be that 
described by Cope? as Oxyrhopus doliatus semicinctus, the type of 
which is U.S.N.M. No. 28900, from Sipurio, Costa Rica. Conspecific 
with this are 4 others in the National Museum from Honduras (Se- 
govia River, No. 24533), Nicaragua (Escondido River, No. 19744) and 
Panama (Cana, No. 50111; Ancon, C. Z., No. 65867). These speci- 
mens show the following differences from baileyi: (1) ventrals more 
numerous, 200 to 209 (191, baileyi), caudals more numerous, 92 to 
111 (89, batleyz) ; (2) very little or no black spotting on light scales 
(a great deal in batley2) ; (8) ventral surface of tail banded, as dorsal 
surface (mottled in baileyi); (4) interspaces between black bands 
yellow (posteriorly red?) (all red in baileyi, except yellow nuchal 
collar) ; (5) nuchal collar usually (not in 1) involving posterior ends 
of parietals, nearly to eye laterally, covering 5 to 8 scale lengths on 
nape (not involving parietals, not reaching primary temporals lat- 
erally, covering 3 scale lengths on nape); (6) first spot on body 
longer, covering 10 to 16 scale lengths (8 scale lengths in bazleyz). 
So far as I am aware, the only other specimens of this group known 
from Mexico are two recorded by Boulenger ** from “Mexico” and 
Atoyac, Guerrero. The latter very likely is different from badleyi, 
not only because it has more numerous ventrals (204) but primarily 
because it is from an entirely different faunal province. 
This species is not pethola Linnaeus, since this name (fide Boulen- 
ger, op. cit., p. 102) refers to South American specimens with 50 to 
75 crossbands; the type of baileyé moreover does not fit the descrip- 
tions given by Linnaeus of the 9 varieties of pethola. The pattern 
description of petalartus Linnaeus does fit the characters of baileyi, 
however, in the few details mentioned; I do not believe the name 
refers to the Mexican form, however, since the ventrals and caudals 
are perhaps too numerous (212, 102, respectively), and the type lo- 
cality is given as “South America” and “India” (latter by error). 
Oxyrhopus doliatus aequifasciata Werner from Cobin, Guatemala, 
does not seem to be the same. It has 207 ventrals and 78 subcaudals, 
the underside uniform yellow, the light spaces between the dorsal 
bands not dark-spotted. 
22U. S. Nat. Mus. Bull. 32, p. 76, 1887. 
22 Cat. Snakes Brit. Mus., vol. 3, p. 103, 1896. 
