366 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXV 



the Thamin (Rucervtis tliamhi) from the Pegu Plains, and also two 

 of the same genus from the Ruby Mines District. 



' These two latter, however, coming from quite a distinct area, 

 appear to me to represent a special subspecies of the Thamin, which 

 I propose to name in honour of the sportsman by whom the 

 specimens were shot. 



RUCERVUS THAMIN BRUCEI, subsp. n. 



External characters, including foot structure, unknown. 



Skull as in R. thamin, except that in both specimens the ridge 

 which bounds on the upper side the lachrymal pit is comparatively 

 little developed, its edge rounded, as compared with the strong 

 and shai'p edged ridge found in other members of the group. 



Horns with much roughened surface. Brow-tine and beam not, 

 as in all the other Thamins, in the same, or nearly the same, 

 continuous line, but the former bent up at an angle more approach- 

 ing what is found in the Swamp deer (^R. duvauceli). Viewed from 

 the side the ordinary Thamins have the brow-tine at about 

 lyO^-iyS" with the beam, that is, nearly straight, while in 

 U.t.brucei it is slanted upwards at about 130°-140°. The same 

 slanting .up produces an angle of about 65° with the occipito- 

 premaxillary line, as compared with about 40°-45° in others 

 members. of the genus. 



Viewed from above the two beams are directed more backwards, 

 comparatively little divergent from each other, the middle third of 

 one beam forming an angle of 70° to 75° with the middle third of 

 the other, therefore decidedly less than a right angle. In E. eldi and 

 thamin, on the other hand, the two beams diverge widely outwards 

 from each other, the middle third of one forming considerably 

 more than a right angle (110°-120") with the middle third of the 

 other. This curvature is quite uniform in all the available adult 

 specimens of R. eldi and thamin. 



The tips of the antlers tend a little towards the broadening found 

 in R. platijceros, but less developed than in that animal. The 

 extreme tip consist in each case of two small subequal tines. 



Supplementary tines at the junction of beam and brow-tine of 

 moderate development, the type having one of 5 inches on one 

 side and two small ones on the other ; the second specimen has 

 two small ones on each side. 



Dimensions of the type : — 



Skull, greatest length 345 mm. j condylo-basal length 320 ; 

 zygomatic breadth 129 ; upper tooth row 82, 



Horns, length round curve from base 772 (30-4 in.). Circum- 

 ference of base 153 (6 in.) length of brow-tine 412 (16*3 in.). 

 The longer horn of the second specimen is 830 mm, in length. 



