CRANIA OR RUMINANTS RROM THE INDIAN TERTIARIES. 11—98 
Height from palate to tip of nasals 
Interval between orbit and base of horu-core 
Transverse diameter of left orbit 
Antero-posterior diameter of left orbit . 
Length of line of five molars 
Greatest width of palate 
Interval between outer surfaces of second molars 
Length of left horn-core, upper surface 
„ „ „ lower „ 
Antero-posterior diameter of base of left horn-core 
Circumference of ditto .... 
Transverse diameter of ditto 
Interval between tips of horn-cores 
„ „ supra-orbital foramina 
Width of nasals at widest part . 
. 3-2 
. 5-3 
. 27 
. 31 
. 5-9 
. 3-8 
. 5-8 
. 39-0 
. 32-0 
. 3-8 
. 12-5 
. 3-4 
. 360 
. 5-7 
. 2-7 
I will now notice another frontlet of the same species in the Indian Museum, 
collected by Mr. Hacket in the Nerhudda valley ; it belonged to a rather larger 
animal than the preceding specimen. The general form of the frontals of the 
two specimens is similar, the horn-cores, however, of Mr. Hacket’s specimen, 
instead of a nearly circular, present an elliptical cross section, while, continuous with 
the intercornual ridge, a well-marked ridge runs along the upper border of the 
horn-core; the form of the horn-core of this specimen indeed approaches very 
closely to that of the male Bibos gaurus. The horn-cores are more massive and 
taper less rapidly than in the preceding specimen, while the ridge between, the 
base of the horn-cores is quite straight, and without any median prominence ; the 
dimensions of the specimen are as follows : — 
Length from intercornual ridge to apex of nasals 
. 13-0 
Interval between superior curved line of occiput and intercornual ridge 
. 3'5 
Width at superior border of orbits 
. 10-4 
„ at constriction above ditto 
. 8-5 
Length of intercornual ridge 
. 9'0 
Interval between orbit and base of horn-core 
. 5-5 
„ „ supra-orbital foramina 
. 5-6 
Antero-posterior diameter of base of horn-cores 
, 5-2 
Transverse .ditto ditto 
. 4T 
Circumference of ditto 
. 160 
Two other specimens of the frontlet of the Nerhudda ox, in the Collection of 
the Indian Museum, have horn-cores of which the cross section is intermediate in 
form between those of the horn-cores of the two last specimens. The following 
measurements show the difference in the form of the horn-cores of fom’ individuals 
of this species ; the specimen in the first line is Mr. Hacket’s above-mentioned 
specimen, those in the two middle lines are the two frontlets here referred to, while 
that in the last line is the cranium figured in Plate XI ; the measurements are 
taken at the base of the horn-cores : — 
Ant.-post. diam. Tran, diam, Diif. Girth. 
Flat-horned variety 
.5-2 
4-1 
1-1 
16 
Intermediate ditto 
. 5T 
4-2 
0-9 
15 
2nd ditto ditto 
. 4-7 
3-8 
0-9 
13-5 
Round-horned ditto 
. 3-8 
3-4 
0'4 
12’5 
