1869. ] DR. J. E. GRAY ON THE TORTOISES. 219 
spots on the flap of the upper lip. The hinder part of the head is 
encircled by a broad black-edged white band or collar, which is in- 
terrupted by a small olive spot in the middle of the back of the neck. 
The collar is broader and more diffused on the sides of the throat ; 
it gives off a horizontal streak from its hinder side nearly as broad as 
itself, which is extended for a short distance on the sides of the neck. 
The alveolar surface of the lower jaw broad and slightly concave. 
Hab. Pegu. 
In its young state this Zrionyx is one of the most ornamental 
species, the dorsal shield being decorated with four large eyed spots, 
each surrounded by several concentric rings of different width, and 
the white interrupted collar on the neck is very striking. It has the 
four large spots on the dorsal shield so common with the young 
state of Trionyx gangeticus, figured in that state in my ‘ Illustrations 
of Indian Zoology’ as Trionyzx ocellatus, which is copied from Dr. 
Buchanan Hamilton’s drawing of Testudo ocellatus. But in this 
species and in the more advanced state of the young animal figured 
in my ‘Indian Zoology’ as Trionyx hurum, from another of Dr. 
Buchanan Hamilton’s drawings, there is a yellow spot on each temple 
just behind the eyes; while in 7’. ormatus the temples are olive, and 
the white collar is much further back—as far from the back edge of 
the eyes as the eyes are from the tip of the nose. 
The upper part of the head is olive, very closely and minutely 
dotted with black ; the underside is uniform greyish white, The 
nostrils are very close together, with a slight lobe on the inner side 
of each. This may be the species indicated as a T'rionyx phayrei by 
Mr. Theobald (Journ. Proc. Linn. Soe. vol. x. p. 18), but so indis- 
tinctly described as not to be recognizable. 
4. Forpia. 
. Head short, broad; face short, forehead convex. Anterior pala- 
tine groove narrow, linear, deep. Alveolar surface of the beak of 
the upper jaw very wide, flat; of the beak of the lower jaw very 
broad, as wide in front as on the sides, acute, flat, granular, with a 
yery indistinct indication of a longitudinal central ridge. The hinder 
pair of costals about half as broad as the pair of costals before them. 
Skull ——? Had. Africa. 
Known from Trionyzx by the flatness and width of the alveolar 
surface of the beaks. I have named this genus after Mr. Ford, who 
has illustrated so many of my papers. 
ForpDIA AFRICANA. 
The head and neck (and most likely the other parts of the body, 
limbs, and dorsal shield) olive, minutely and regularly speckled with 
small white spots. The hinder sternal callosities triangular, rather 
longer than wide, straight in front and on the inner side, very acute 
behind. 
Hab. Upper Nile, Chartoum (Petherick, adult male and female 
in the B. M.). 
