198 DR. J. E. GRAY ON THE TORTOISES. [Mar. 11, 
ceived from Holland as ‘‘ Clemmys sprengleri.”” The head of the 
younger specimens is rather more slender and thinner than that of 
the adult. 
A young specimen in spirit, sent with an adult and a half-grown 
specimen from Borneo, and presented by Mr. Dillwyn. The head 
is black, with an elongated yellowish white spot over each orbit, 
extended towards the nostrils, and a large round opake pure-white 
spot on each temple over the zygomatic arch, a triangular white spot 
on each side of the lower jaw, and a small white spot on the side of 
the head under the tympanum. 
The head of the adult specimen has not these distinct spots ; but 
the region of the orbit and temple is varied with white. Unfor- 
tunately, however, the older specimens are not in such a good state 
as the young one. 
Bellia crassicollis. 
Two skulls in the Museum, sent by Prof. Oldham, are very solid ; 
nose rather produced, conical ; nose-hole in front large, four-sided ; 
cheeks shelving outwards; crown flat, rhombic, narrow and acute 
behind ; zygomatic process moderately broad, from back of orbit to 
the upper front half of the oblong tympanic cavity; orbit oblong, 
large. The labial edge of the upper jaw arched on each side and 
overlapping. The palate nearly flat, with a concavity in front be- 
hind each internal nostril.. The alveolar plate broad, flat, smooth, 
broader behind, and with a slight oblong central pit and a larger 
