IlEPTILIA. 
9 
aie °ften faint and small, or some of tlicm are wanting, whilst in other specimens 
additional spots are fonnd on the sides. It is evident that the colouration varies, in the case 
theobaldi, to a great extent, and therefore it would he impossible to found a specific 
sanction upon it without stronger differences. 
There is one difference which, if constant, would be of great importance. P. theobaldi , 
Theobald has shown, is viviparous (or, more correctly ovo- viviparous), and I find foeti in 
)e females, whereas I find only eggs in the oviducts of a female P. forsythi. But this 
Tna y depend on the time of year, the pregnant females of the former species having been 
captured at a later period of the season. 
Dr. Anderson omits to point out the characters which led him to suppose that P. 
'-tylhi was a distinct species. I may have overlooked some difference, but I have examined 
0 j 1 forms carefully, and I do not think the two can be distinguished by any constant 
character. 
The following is a description of P. theobaldi from the specimens before me : 
^ General form as in P. otivieri ; tail a little longer than the head and body, rather thick 
I ^ 1Q base, tapering beyond, but much thicker throughout in some specimens than in others. 
sorae cases the tip is laterally compressed, in others round. Limbs rather short, the 
, 1Uul hmb reaches beyond the shoulder, and often to the head ; the fore limb does not reach 
of 6 ^ l ^ l ‘ S ca l es of back small, flat, or convex, often granular. The scales in the middle 
V ’Te back usually larger than those of the sides. A few rather larger scales are some- 
nes scattered over the sides, but they are not much larger than the others. The black 
f, GS forming spots on the back are sometimes more pointed. Scales on the head larger 
1 n those on the back ; usually the largest are on the occiput. Upper labials with projecting 
on nctet ^ 5 or pointed margin along the edge of the lip, lower labials straight edged. Scales 
0r u Pper surface of limbs generally faintly, sometimes more strongly keeled, often almost 
cnd'D 11 * 0 smooth. Scales of lower parts smooth. Tail scales smooth, except towards the 
5 M Tcre they are usually keeled, more strongly below than above. 
Sr ^ SUa l colour above olive-grey, varying in tint, and more or less spotted with black ; 
^ copies the ground colour is pale, almost cream-coloured, and the spots form ocelli. 
p Girn.es, besides the black marks, there are whitish spots of various sizes. The variety 
T[- J°rsythi has usually four or five pairs of black spots on the back, and is bluish-grey in colour, 
a 6 ^ as dusky spots along each side ; these are never, except towards the tip, joined 
aot OSS ^ le lower surface as in P. otivieri, but they frequently meet above. Tip of the tail 
infrequently black, and in many specimens (especially males, though it is not confined 
wh oi ( -) the central portion of the abdomen is black ; this colour sometimes extending to the 
e ’ 0r nearly the whole, lower surface of the body and head. 
6. PlIRYXOCEPIIALtS AXILLARIS. Plate I, fig. 4. 
^ • fllanf. ; Jour. As. Soc. Bengal, 1875, xliv, Pt. 2 , p. 192. 
0r >m f* nta J 0r > Icevis, cauda elongata, pede anteriore in adulto r/ix femur attingente, squamis 
ozi/l )US cauda apicem versus exceptis ; supra griseus, macula rubra utrinque post 
notatus, membris cauddque f asciis fuscis transversis signatis, hac ad medium fusco* 
