NO. 2188. MAMMALS FROM ISLANDS OFF SUMATRA— LYON. 439 



is no lightening of the skin covering the wing bones as so frequently 

 happens in the case of Cynofterus. Belonging to a genus which shows 

 comparatively httle differentiation among its members, Cynoterus 

 hahi has no specially striking peculiarities to indicate its affinities. On 

 account of its having the same general size and a uniformly dark 

 color, it is apparently more closely related to C. scherzeri than to the 

 Sumatran C. hrachyotis. It is unfortunate that there are no speci- 

 mens of Cynopterus from Simalur and also from the Banjak Islands. 



Family MEGADERMIDAE. 



MEGADERMA LASIAE, new species. 



1903. Megaderrm spasma, Miller, Proc. U.S.Nat.Mus., vol. 26, p. 474, Februarys, 

 1903. 



Type-specimen. — No. 114249, U.S.N.M., skin and skull, collected on 

 Pulo Lasia, January 6, 1902, by Dr. W. L. Abbott, original number 

 1401. 



GeograpMc distribution. — Lasia and Babi Islands. 



Diagnostic diameters. — A large member of the genus characterized 

 by the width of rostrum and the soHdly built portion of the maxiUa 

 covering roots of canines. 



Color. — ^Type: Free ends of hairs of upper parts benzo brown or 

 near that color, or between that and hair brown; base of hairs, 

 mouse or hght mouse gray; under parts, generally similar but some- 

 what Hghter. Ears and membrane blackish brown except tips of 

 wings which are lighter. 



ShuU and teeth. — The skuU as a whole is sHghtly larger than that of 

 Megaderma trifolium of Sumatra and Java, the rostrum being par- 

 ticularly wide and heavy with roots of canines very heavy, best seen 

 on viewing skuU from above. The teeth as a whole are larger than 

 they are in M. trifolium, particularly the large premolar and first 

 molar. 



Measurements. — Tjrpe: Head and body, 80 mm.; forearm, 59; 

 tibia, 34; foot, 20; width of rostrum at apex, 64; condylobasal 

 length, 24.5; brain case, 11.6; maxillary toothrow, 10. 



Specimens examined. — Four from Pulo Lasia, two from Babi. 



RemarTcs. — Megaderma lasiae is readily distinguishable from the 

 Sumatran-Javan form, but appears to be closely related to M. 

 natunae,^ but is not so large. 



MEGADERMA SIUMATIS, new species. 



Type-specimen. — No. 114227 U.S.N.M., skin and skull of adult 

 female, collected on Pulo Siumat, December 27, 1901, by Dr. W. L. 

 Abbott; original number 1390. 



1 Andersen and Wroughton, Ann. Mag. Nat. Hist., ser. 7, vol. 19, p. 133, Febmary, 1907. 



