On new Species of Geoclemmys and Emys, ete. 149 
quite distinct from any which have hitherto come under my obser- 
vation. 
EmMyYs FULIGINOSUS, 
Depressed, flexible, black. Shields convex, rather irregular, with 
deep, irregular, subconcentric grooves of unequal depression. Under- 
side black, with white blotches on the front margin of the sternum 
and on the inner edge of the central marginal plates near the sterno- 
costal suture, and a small irregular white blotch on the middle of the 
under side of the front marginal plates. Head rather depressed ; 
crown covered with a continuous, smooth, rather horny skin. Jaws 
mottled with sinuous white lines or spots; sides of the neck with 
narrow white lines; the chin and throat mottled with broader white 
streaks, often interrupted or coalescing, or short and sinuous; the 
temple with a distinct round white spot, with two or three small white 
dots in front of it; the tympanum with a central white spot, and 
edged with a white streak in front. Legs and feet black ; the front 
of the fore legs varied with white irregular streaks or spots, espe- 
cially on the inner side, and with a white streak down the centre of 
the upper side of each toe. Toes distinctly webbed ; claws rather 
elongate, curved, acute, black, with pale edges ; the toes with a single 
central series of larger scales above. Fore legs with four large 
conical scales on the outer part of the upper side, and with a cross 
series of three square scales on the under side of the wrist. The 
hind legs and feet covered with equal, small triangular scales. Tail 
conical, black, with two transverse streaks before the vent. 
Hab. North Africa? 
DescripTIoN OF HOMALOCRANIUM LATICEPS, A NEW SNAKE 
FROM CARTHAGENA. By Dr. ALBERT GUNTHER. 
A Snake presented by Capt. Garth to the British Museum proves 
to be a new species. It was procured at Carthagena. 
HoMALOCRANIUM LATICEPS. 
Diagnosis.—Scales in fifteen rows. Head broad, depressed as in 
Elaps. Seven upper labial shields, the third and fourth of which 
enter the orbit ; two posterior oculars. Above black, with about 
twenty-three narrow brownish-yellow rings, the first forming a collar ; 
belly brownish-yellow. 
Description.—This Snake much resembles an Elaps in general 
habit ; but there is no fang anteriorly, and the last maxillary tooth is 
longer than the others, and appears to be grooved. The rostral 
shield is rather low, triangular, and somewhat bent backwards on 
the upper surface of the head ; the anterior frontals are much broader 
than long, and only one-fourth of the size of the posterior ; the ver- 
tical is six-sided, not much longer than broad; occipitals moderate. 
The nostril is between two shields, the anterior of which is the 
largest ; loreal none ; one anteorbital. Seven upper labial shields, 
the second of which is in immediate contact with the posterior frontal ; 
