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Show 8 8 MR. K. ANDERSEN ON BATS [May 16, (as might perhaps be expected) in the measurements of them. It may well be that the few examples from N.W. Borneo, Labuan, and Banguey (four only) happen to be rather short-eared (and short-armed), and therefore do not show the true limits of individual variation in these respects. I prefer to keep them separate, provisionally at least, to call attention to the possible existence of two very slightly differing forms of the species. 7. R h in o lo ph u s v ir g o , sp. n. Diagnosis. Similar to borneensis, but much smaller. Forearm 3;7 ‘ 5 - 3 8 -8 mm. Details. This is decidedly the smallest species of the present group. The horseshoe is markedly narrower than in any other form of the borneensis type ; the sella considerably smaller than in borneensis, but of the same shape; the ears much shorter and narrower. Colour. Probably not far from being the same as in the dark phase of borneensis (the two specimens examined are evidently somewhat faded in alcohol). Measurements of Rh. borneensis and virgo. Ears, length ...................................... „ greatest breadth ................... Nose-1 eaves, total length .............. „ breadth of horseshoe Forearm ................................................ 3rd metacarpal I I I .' .................... I I I ." 4th metacarpal IV.i iv.-' ...................... 5th metacarpal ...... V................... i V.2............... Tail ............................................ ;;;;;;;; Lower le g ................................................ Foot ......................................................... Skull, total length ............................ „ mastoid width ........................ „ width of brain-case.............. ,. zygomatic w id th ................... „ supraorbital length.............. „ width of nasal swellings.... Mandible, length ............................. Upper teeth ........................................... Lower teeth .............................. Rh. borneensis. Rh. virgo. f. typica. 4 specimens, 4 skulls. spadix. 6 specimens, 7 skulls. 2 specimens, 2 skulls. Min. Max. Min. Max. Min. Max. mm. mm. mm. mm. mm. mm. 16 171 17-2 1 9 5 14-7 15-2 12'2 12-8 1 2 5 1 4 2 10-7 10-8 12-5 13-7 12-7 14-2 10-7 112 8 8 3 8 9 7'2 7‘2 41-2 4 3 7 42'5 4 6 3 3 7 5 38'8 28'7 31-2 28-8 32 7 27-2 28'2 12-1 13-5 11-7 142 10'2 10'7 162 18'7 16-6 1 9 9 1 5 2 152 29-7 32-2 30-7 3 4 5 28 28-6 8'8 9-7 8-2 9-8 7'3 8'2 10 11-8 9'8 12 9 9 29'8 32-2 30-7 3 3 8 27 28-2 9'5 10-3 9 1 0 3 8-1 8'8 10-2 11-8 9-8 12-2 8'2 8-3 18 1 9 2 1 8 3 21-5 17'9 20-2 17'8 1 9 2 1 7 2 19 1 4 2 15-2 8-8 9 8 5 9 1 7'2 8 1 9 5 18-2 20 1 6 2 1 69 9-2 8-8 9-5 8 8'2 8 7-8 8'2 7-1 7'7 9 8 9 9'9 8"1 8'2 5 1 5'2 5 5-2 4 7 5 5-3 5'7 5 2 5-5 4-3 4 3 122 131 122 1 3 7 10-8 11-5 7 7'2 7 7-6 6 1 6'2 7 5 7-8 7-4 8 6 5 6-8 |