in the Collection of the British Museum. 125 
ventral and subcaudal plates, leaving only their narrow outer 
edges yellowish. Length of the head 1 inch, of the trunk 24, 
of the tail 9. 
This snake is probably from the East Indies. 
Spilotes Salvini. Pl. IX. fig. 5.° 
Scales in 19 rows, slightly keeled ; one anterior and two pos- 
terior 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 
two posterior temporals, the anterior not much larger than, and 
in contact with, the oculars; the lower posterior temporal 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 
rounded behind, as long as the vertical; the anterior ocular 
just reaching to 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 anterior part of 
the body larger than the rest ; each scale with two grooves at the 
apex. Ventral plates 215; anal entire; subcaudals 130. All 
the maxillary teeth of equal length. Ground-colour yellow, with 
broad black cross-bands, which are more regular and distinct 
from the ground-colour on the posterior half of the body than 
on the anterior, where they are more confluent, and many scales 
within the bands remain entirely or partly yellow. Lach scale 
of the yellow interspaces has a black tip. ach shield of the 
head with black margins; occipitals black, with some symme- 
trical small yellow spots ; suture of the eighth and seventh upper 
labials black. Lower parts yellow, many of the plates with 
black margins. 
This species was discovered by O. Salvin, Esq., at Ezabal 
(Guatemala). 
Zamems gracilis. 
Habit slender. Yellowish-olive, with a single series of large 
brown round spots edged with black, along the anterior half of 
the body; the spots become indistinct posteriorly, and only 
the black edges continue to form cross-bars on the back, being 
merely spots on the tail; head with two brown black-edged 
cross-bands, the anterior between the eyes, the posterior on the 
crown of the head, forming an acute angle on the vertical ; the 
brown spot on the neck is produced forward within the limbs of 
the band across the crown ; an irregular series of black spots on 
