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Show 80 MR. K. ANDERSEN ON BATS [May 1C, 2 b. R hinolophus megaphyllus monachus, subsp. n. Diagnosis. On an average smaller than the typical form : forearm 46 mm. Details. Sella a trifle broader at base than in the typical form ; summit completely square-cut; front face a little more distinctly haired. Length of forearm almost as in the smallest individuals of the typical form, but metacarpals distinctly shorter. Tail also comparatively somewhat shorter. Brain-case decidedly more slender. Tooth-rows somewhat shorter. In colour scarcely different from the dark phase of the typical form. Measurements. Below. Type. 5 ad. (in alcohol). St. Aignan's Island (Misima), Louisiade Archipelago. Collected by Albert S. Meek, Esq. Brit. Mus. no. 98.4.1.1. Measurements of Rh. simplex and megaphyllus. Bh. simplex. IlJi. megaphyllus. ? ad. Type. f. typica. 11 specimens, 5 skulls. monachus. ? ad. Type. mm. 18 Min. mm. 18 Max. mm. 19o mm. 19-8 1 3 5 13-5 15 14-5 15 16-2 14-8 „ breadth of horseshoe........ 8'5 44-2 8-8 46‘5 9'8 50 8'8 46 31-8 33-8 36 32-7 III.i ............................... 13 13 14-6 13-2 111.2 ................................................ 17-8 17-5 20 17-8 32 3 4 3 36-8 3 3 5 IV.1 ................................... 9 2 9-8 11-2 9 ‘7 IV.2 ...................................................... 11 11-5 13-3 10 31-8 34-3 3 6 5 32-7 V.1 ............................................. 10 1 0 4 1 2 7 10-2 v .2 .................................................. 11-2 11-7 14 11-7 2 4 5 22-2 26-8 20-5 1 97 18-5 22 19 8'8 9 102 8-7 187 1 99 20-5 19-3 9 9-8 9-8 9'5 7-8 8‘5 8'6 8 9 4 10 9-6 6 6 6-8 „ width of nasal swellings ....... 5'2 12-8 5-8 1 3 3 6 14 5-7 1 3 2 7-2 7-7 8-1 7-3 Lower teeth ................................................... 7'8 8'2 8 7 8 3 . R h in o lo p h u s t r u n c a tu s Peters. Rhinolophus truncatus Peters, MB. Akad. Berlin, 1 8 7 1 , p. 3 0 7 . Rhinolophus megaphyllus (non Gray), var. «, Dobson, Cat. Chir. Brit. Mus. (1 8 7 8 ) p. 1 1 1 . Diagnosis. Allied to Rh. simplex. Sella more slightly constricted |