242 Mr. C. W. Andrews on the Structure 
XXXVI.—Description of a new Chinese Squirrel. 
By OLpFIELD THOMAS. 
I owe to the kindness of Mr. F. W. Styan, of Shanghai, the 
opportunity of describing the following striking new species 
of squirrel :— 
Scturus pyrrhomerus, sp. n. 
Allied to and of the same size as S. rufigenis, Blanf., and 
S. Pernyi, M.-Edw., with both of which it shares the oliva- 
ceous back, grey and white belly, yellowish post-auricular 
spots, and characteristically coloured tail, white-grizzled black 
above and brilliant red below. Sides of cheeks with a vague 
orange suffusion; anal region greyish white, like rest of 
underside. A large and prominent blotch on the outer side 
of each thigh brillant rufous. 
Skull with an enormously elongated muzzle, far longer 
than that of either of the above-named species, and but 
little excelled even by S. (Rhinosciurus) laticaudatus, a very 
different squirrel in all other respects. Postorbital processes 
very short. 
Dimensions of the type (an adult female, in skin) :— 
Head and body 220 millim. ; tail 124; hind foot 49. 
Skull: greatest length 58; greatest breadth 30; nasals 
19:2 x 6; tip of nasals to middle of a line connecting anterior 
corners of orbits 27; interorbital breadth 16-2; postorbital 
processes, length behind 274; palate length from henselion 
25; diastema 14; upper molar series (excluding p.’) 9-2. 
Hab. \chang, Yang-tse-kiang. 
Coll. F. W. Styan, Nov. 1893. 
This handsomely marked squirrel may be readily distin- 
guished from its only near allies, S. rufigents and &. Pernyé, 
by having no red either on the cheeks or anal region and by 
the red patch on the hips, Its extraordinarily long muzzle 
also widely separates it from any of its allies. 
XXXVII.—On the Structure of the Skull in Peloneustes phil- 
archus, a Pliosaur from the Oaford Clay. By C. W. 
ANDREWS, F.G.S8., Assistant in the Geological Department, 
British Museum. 
[Plate XIII.] 
THE structure of the skull in the post-triassic Sauropterygia 
is still in some respects very imperfectly known, a circum- 
stance that may be accounted for partly by the comparatively 
