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Show 1905.] OF THE GENUS RHINOLOPHUS. 129 (three); in none, completely in contact, p2 in row; a well-developed cusp, pointing inwards. Upper canine and pl widely separated ; in one skull there is a small interspace between p" and p‘ (the former place of p3). Distribution. Japan proper. Remarks. In general size, as well as in the skull and dentition, the Tsu-sima Bat agrees with the typical form; but the colour is that of Rh. c. pumilus *. 20. R h in o l o p h u s g r a c i l i s , sp. n. (Plate IY. fig. 18 a, b, c.) Rhinolophus minor (partim, nec Horsf.) Dobson, ut supra. Diagnosis. Skull: the minor-type. Sella parallel-margined ; tail extremely short. Yery small: forearm 36‘2 mm. Details. This is an aberrant species of the minor-type. The connecting process is quite of the same shape as in the foregoing species (very different from that of subbadius). But the sella is parallel-margined, as broad at the summit as at the base ; by means of a lens (probably not without) an exceedingly faint trace of a constriction can be observed ; the summit of the sella is broadly rounded off, as in borneensis, not with a tendency towards a subacute shape, as in the foregoing forms of this group ; length of sella 2-8 mm. ; width at base 1'8 mm., at summit l -7 mm. The lancet is, considering the small size of the Bat, remarkably long (4 mm.), with the lateral margins almost straightly converging towards the tip ; it recalls the lancet of Rh. midas and hippo-siderus (with which species Rh. gracilis has no very close affinity). The tail is extremely short (13*5 mm.), shorter than the lower leg. Plagiopatagium inserted a trifle above the ankle. The colour (a little faded in alcohol) has probably been rather like that of Rh. lepidus. Skull. Quite of the minor-type. Dentition (one skull). p3 external. p2 and p4 distinctly separated. p2 in row ; cusp extremely minute (unworn). Measurements. On p. 132. Type. $ ad. (in alcohol). Malabar Coast. Purchased. Brit. Mus. no. 73.4.16.2. 21. R h in o l o p h u s s u b b a d iu s Blyth. Rhinolophus subbadius Blyth, J. A. S. B. xiii. pt. i. no. 150 (June 1844) p. 486. Rhinolophus garoensis Dobson, J. A. S. B. xli. pt. ii. no. 4 (Dec. 22, 1872) p. 337; id., Mon. Asiat. Chir. (1876) p. 48, text-figs. a-c\ id., Cat. Chir. Brit. Mus. (1878) p. 115. * I have examined a paratype of Gerrit S. Miller's Eh. minutus (Proc. Wash. Acad. Sci. 1900, p. 235), tlie type of which is from the Anambas Islands. It is an offshoot of the minor-type, but undoubtedly a distinct specics, differing from Eh. minor (from Darjeeling) in having the brain-case decidcdly higher in front, giving the skull, in side view, a very characteristic outline. The name " minutus " is, however, preoccupied by Montagu's " Vespertilio minutus," which is the British form of Eh. hipposiderus. Mr. Miller will rename the Anambas species. P r o c. Z o o l . S oc-1905, Y o l . II. No. IX. 9 |