Zoological Miscellany, 
63 
7. Hydrophis suhcinctus^ Gray. Hydrus major, var. Shaw, Misc. Above 
pale blackish ash in spirits, with some whitish cross bands, whitish beneath: 
scales of neck and back keeled ; 1 anterior and 2 posterior oculars : the 
lower rostral shield trigonal ; the first, second and third lower labial shields 
long, rest small, with 2 pair of large plates below them : temporal shields 
large. 
Inhabits Indian Ocean. Brit. Mus. ; Dr. Shaw’s specimen. 
8. Hydrophis nigrocinctus, Daud. Hydrus nigrocinctus, Merrem. An- 
guis Xiphura, Herm. — Russ. Ind. Serp. ii. t. 6. Above greenish, in spirits, 
dusky, beneath yellow, with close, rather narrow, dark brown rings : head 
yellow ; front of upper lip, crown, and band from the angle of the mouth 
across the nape brown ; rostral plates broad and low : 1 anterior 2 posterior 
shields: lower rostral plates triangular; the 4 front lower lip plates large, 
the hinder pair much the largest, rest small : chin-shields 2. 
Inhabits Bengal. Brit. Mus. 
B. The head covered with scales like the body. The nostrils surrounded 
by a small continued ring. Eyes surrounded by a series of small scales. La- 
bial shields serrated, with a larger series above them. Pupil round. Ventral 
shields very smalf scale-like, separate, on each side of a keeled ridge. Rivers. 
Acrochordina. 
X. Chersydrus. Tail compressed, sword-shaped: body fusifonn, co- 
vered with small rhombic scales with a central tubercular keel. 
1. Chersydrus granulatus, M.exxem. Hydrus granulatus,^chn. Pelamis 
granulatus, Daud. Acrochordus fasciatus, Shaw, iii. t. 130. Black, with 
alternating ovate-lanceolate spots on each side : head white-spotted. 
Inhabits India. Singapore ; Hardwicke. Brit. Mus. 
XI. Acrochordus. Tail moderate, conical, tapering: body fusiform, 
covered with tricuspid scales. 
I. Acrochordus Javanicus, Hornst. A. Javensis, Daud. A. duhius, Shaw, 
Zool. iii. t. 29, good. Adult brown ; young brown, with darker bauds and 
streaks. 
Inhabits Java. Brit. Mus. ; Dr. Shaw’s specimen and some young. 
II. Belly with more or less broad band-like shields. Tail conical, tapering. 
Head shielded. 
C. Tail scaly. , Nostril in a ring of small scales. The abdominal shield 
very small, keeled on each side, as if formed of two scales united. 
XII. Erpeton, Lacep. Rhinopirus, Merrem. Head, crown shielded, 
with some small shields between the vertical and superciliary shields, a dou- 
ble set of labial shields, and a compressed scaly beard on each side of the 
muzzle : nostrils in the middle of a series of small shields : dorsal scales 
imbricate, keeled : abdominal shield small, long, narrow : subcaudal shields 
scarcely different from the other scales. 
1. Erpeton tentaculatus, Lacep. Rhinopirus Erpeton, Merrem. Homo- 
lapsis Herpeton, Schlegel. Pale brown, with 3 white streaks continued on 
the tail. 
Inhabits ? Mus. Paris, from the old Dutch collection. 
