132 
ON THE PHYSIOGNOMY OF SERPENTS. 
and in the last two varieties the spots are disposed in three 
rows. The Sumatran variety has large, thick-set, oval, 
dorsal spots. Rows of scales, 17. S. 145 -1- 35. 
12. Calamaria Scytale from the Philippines and Cey- 
lon, characterized by the existence of a pairless anterior 
frontal plate, and also by a tail provided with undivided 
scuta ; approaches in form to Cal. Badia. Above brownish, 
passing below to tarnished ochre-yellow ; three dark spots 
on the occiput ; as many rays, composed of dark points, 
along the back and flanks. B. of scales, 17- S. 140 + 30. 
The southern parts of North America produce, 
13. Calamaria Striatula, which is also found in the 
Isle of Martinique. It is recognised by its conical head, 
covered with plates like those of a Coluber, except that the 
frenals are wanting, by its large eyes, by a very pointed 
tail, and by lanceolate scales, always surmounted by a strong 
keel. Above of a pale greyish-brown ; below yellowish. 
B. of scales, 15 to 17- S. 120 + 35. 
14. Calamaria Elapsoides of Java has lanceolate cari- 
nated scales, like the preceding ; but it attains a larger 
size. The eyes are smaller, whilst the nostrils are very 
open ; the head differs in shape, and the tail is more slen- 
der ; the colours, which are most brilliant, distinguish it 
from all the other species. Above, carmine red ; below, 
pale azure blue. B. of scales, 15. S. 150 4 70. 
15. Calamaria Blumii, an anomalous species of 
South America, approaches both the Tortrix and certain 
Homalopsis. It has a more vigorous form than any other 
species, a cylindric trunk, a conical and strong tail. Its 
head is depressed, obtuse, the eyes are very small, and a 
very long tooth is perceived at the posterior part of the 
maxillary bone ; six labial plates, two oculars, and two 
frontals ; elongated occipitals. Above brown, marbled with 
dark points, and relieved with three obsolete rays ; lower 
parts and its half-collar yellowish. B. of scales, 15. S. 
180 + 35. 
16. Calamaria coronata. This Calamar, discovered 
on the coast of Guinea, has the plates of the head like those 
of the genus Coronella, but has the small size of a Calamar. 
Its tail is more slender than usual ; the trunk slightly 
