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Show 1 9 0 6 .] MAMMALS FROM SOUTH-WEST AUSTRALIA. 471 brown, the terminal third of the hairs lighter and more approaching russet, especially posteriorly, the basal two-thirds blackish. Below, the ends of the hairs are nearer wood-brown, except on the interfemoral band, where they become whitish. Ears small, too much shrunk and distorted for exact description, but their inner margin appears to be unusually convex; tragus not broadened. Wings to the base of the toes. A narrow postcalcar eal lobule present. Skull long and narrow, with an unusually low flattened brain-case; no occipital helmet, the lambdoidal crests commencing rather low down on each side. Inner upper incisor bifid, with a well-marked external secondary cusp near its tip, wearing off in older specimens. Outer incisors small, not reaching halfway from the cingulum to the outer cusp of the inner incisors; hollowed out behind to receive the tip of the lower canine ; a small secondary cusp on its internal edge. Small premolar quite minute, crushed in the angle between the canine and second premolar, which press against each other outside it ; it is evidently in an extreme state of reduction, and has become altogether lost on one side in the type. Lower incisors tricuspid, transverse, overlapping. Dimensions of the type, measured in skin :- Forearm 38 mm. Head and body (c.) 47 mm.; tail 44; third finger 65 ; lower leg and foot (c.u.) 26. Skull-greatest length to base of incisors 12‘7 ; basal length in middle line 9*5 ; mastoid breadth 7*2 ; intertemporal breadth 3; palate length 4'6; front of canine to back of m3 4*7 ; front of lower canine to back of m3 5. Type. No. 4, sex not ascertainable. B.M. No. 6.8.1.18. Although without any very strongly marked characteristics, this dull-looking little bat does not agree with any species hitherto described. Altogether Australia is poor in members of this widely distributed genus, the only other Pipistrelles being one from N. Australia, referred to P. cibramus, and the large and aberrant P. tasmaniensis. The two specimens of P. regulus sent home by Mr. Shortridge were not captured by him, but were made into skins from old mounted specimens. 6. C h a l in o lo b u s g ou ld i Gray. cS. 144, 145, 146, 147. Parker's Bange, Southern Cross. 1163'. 9-17 August. 6 . 150, 151, 152, 153, 154, 155, 156, 157, 159. $ . 149,158, 160. Jaurdi Hills, near Kalgurli. 1250'. 21-24 September. <5*. 169. $.168. North Pool, Laverton. 1650'. 28 October, Not previously recorded from Western Australia. 7. C h a l in o lo b u s morio Gray. <3 . 50 (in spirit). King River, King George's Sound. |