438 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.52. 



DESCRIPTIONS OF NEW SPECIES OF MAMMALS. 



Order GHIROPTERA. 



Family PTEROPIDAE. 



CYNOPTERUS BABI. new species. 



1903. Cynoptenis titthaecheilus, Miller, Proc. U. S. Nat. Mus., vol. 26, p. 474, 

 February 3, 1903. 



Type-specimen. — ^No. 114269, U.S.N.M., skin and skull, collected 

 on Pulo Babi, January 8, 1902, by Dr. W. L. Abbott, original number 

 1411. 



Geographic distribution. — Pulo Babi, possibly it may also occur on 

 Pulo Simalur and Pulo Lasia, 



Diagnostic cliaracters.—A medium-sized member of the genus 

 (forearm 66 to 68 mm., condylobasal length of skull about 30), of 

 very dark color, darker than Cynopterus scherzeri of the Nicobar 

 Islands. 



Color. — Upperparts of head, neck, body, small interfemoral area, 

 and haired area of arm and forearm, between bone brown and natal 

 brown, darker anteriorly on the head, and lighter posteriorly; at 

 base hairs are deep mouse gray; underparts olive brown, except on 

 throat, which is dark ohve brown or an Isabella color; the color of the 

 throat extends up on sides of neck; membrane above and below, 

 including the skin over the finger bones, blackish brown; ear blackish 

 brown with margin as dark as rest of ear. 



SJcuU and teetli. — ^The skull closely resembles that of Cynopterus 

 hrachyotls of the Sumatran mainland, as well as that of C. sclierzeri; it 

 is shglitly narrower and the post-orbital constriction is more marked 

 {sclierzeri, 6 mm., Tarussan Bay hrachyotis, 6 to 7 mm., hahi, 5 to 5| 

 mm.). The teeth do not show any distinguishing characters. 



Measurements. — Type: Head and body, 95 mm., expanse 460 

 (both collector's measurements), forearm 67; thumb, 26; second 

 digit, 46; third digit, 43 by 28 by 37; fourth digit, 41 by 21 by 24; 

 fifth digit, 41 by 20 by 21; tibia, 26; foot, 16; skuU, greatest length, 

 30; condylobasal length, 29.2; zygomatic width, 19; width of 

 brain case, 13; width of palate including outsides of teeth, 9.3; 

 width of palate at posterior free margin, 5.3; antorbital constric- 

 tion, 6.2; postorbital constriction, 5.5; maxillary tootln^ow, 10.2; 

 mandibular toothrow, canine to last molar, 11.5. 



Specimens examined. — ^Three, all from Pulo Babi; skin and skull 

 of the type and two in alcohol. 



Remarlcs. — ^The dull color of the species is apparently very charac- 

 teristic and is as noticeable in the wet alcohoHcs as in the skin. There 



