SPILOTES. 117 
Hab. Mexico, Huatusco * (Mus. Brit.), Vera Cruz, Tabasco (Mus. Paris), Atoyac (H. H. 
Smith), Tehuantepec (Sumichrast), Yucatan (U.S. Nat. Mus.); Britisn Honpvras, 
Belize (Salvin); Guatemata, Rio Motagua, Yzabal (Salvin), Atitlan (Bocourt) ; 
Nicaraava (Cope). 
Scales in nineteen rows, slightly keeled; one anterior and two posterior oculars ; 
eight upper labials, the fourth and fifth of which enter the orbit, the sixth very small, 
triangular, not quite so large as the fourth, the seventh the largest; one anterior and 
generally two posterior temporals, the anterior not much larger than, and in contact 
with, the oculars; the lower posterior temporal, if present, is in contact with the 
seventh and eighth labials, but not with the front temporal. 
Head rather thick ; neck and tail slender; body compressed. Rostral rounded, rather | 
small; anterior frontals half as large as the posterior; vertical five-sided, with the 
posterior angle slightly obtuse, not twice as long as broad ; occipitals obtusely rourded 
behind, as long as the vertical; the anterior ccular not extending to, or only just 
reaching, the corner of the vertical; loreal square. Scales on the anterior part of 
the body much imbricate, in very oblique rows, those of the vertebral line of the ante- 
rior part of the body larger than the rest; each scale with two pits at the apex. 
Ventral scutes 215; anal entire; subcaudals 130. All the maxillary teeth of equal 
length. 
Ground-colour yellow, with broad black cross-bands, which are much more regular 
and distinct on the posterior half of the body than on the anterior, where they are 
more confluent, and many scales within the bands remain eutirely or partly yellow. 
Each scale of the yellow interspace has a black tip. Each shield of the head with black 
margins ; occipitals black, with some symmetrical small yellow spots; suture of the 
eighth and seventh upper labials black. Lower parts yellow, many of the plates 
with black margins. 
The largest specimen measures 77 inches, of which the tail takes 18 f. 
8. Spilotes pecilonotus. (Tab. XLIII.) 
Spilotes pecilonotus, Giinth. Cat. Col. Sn. p. 100; Bocourt, Miss. Sc. Mex., Rept. p. 691, t. 43. 
figg. 4, 4 a—e. : 
? Tropidodipsas lunulatus, Cope, Proc. Ac. N. Sc. Phil. xi. p. 517 (1861) (an=juv. ?). 
? Phrynonax lunulatus, Cope, ibid. xiv. p. 348, nota (1863). 
? Spilotes lunulatus, Bocourt, Miss. Sc. Mex., Rept. p. 694, t. 42. figg. 1, 1 a-e. 
Hab. Mexico (Mus. Brit.), Orizaba (Sumichrast); GuareMata, Vera Paz, low forest 
(Salvin), Panzos, Rio Polochic (Bocourt) ; Honpuras (Mus. Brit.). 
* We have an adult and a young specimen from this locality ; the former has eighteen rows of scales, the 
latter nineteen, which is the normal number. 
+ Cope includes in his list of Central-American Reptiles Spilotes pullatus; but the occurrence of this species 
in Central America seems to me to require further confirmation. 
