•ql^ C'VXOPiEhUS BllACHVOTlS AXGULATU8. 



p. 921 (pt.) (1892: Meetau aiul K^kareet, N. Teiiasserim) ; id., 

 A'ov. Zool. i. p. 655 (1894: Sirha^^sen ; Bunsuran ; baLits); id.. 

 Aim. 3It(s. Civ. Genom, (2) xiv. p. 604 (1895: Si Oban, E. 

 Sipora) ; Trouessart, Cat. Mantin i. p. 85, i\. 456 (pt.) (1897). 



Oynopterus lioiv-tieldi (pt.), Gray, List Mamm. B. M. p. 38, speci- 

 lueii m (1843: "Himalaya," error for Sumatra). 



Cynopterus brachyotis (pt.), Jentink, Kofes Leijd. Mus. xiii. p. 202 

 (1891 : Krapob, Deli-Bedagei ; Paleuibaiig) ; Lyon, Proc. U.S. 

 Nat. 3Ius. xx.xi. p. 603 (1906: Bunka ; Biliton). 



Cynopterus annulatus. Miller, Froc. Ac. N. Set. Philad. 1898, p. 31G 

 "(pt.) (Tronp-, Luwer Siam) ; id., Fam. Sf Gen. Hats, p. 49 (1907) ; 

 Jiloss, J. Fed. Mai. St. Mu^. ii. n. 3, p. 153 (1908) ; Lyon ^• 

 Osyood, Cat. Types Mamm. U.S. Nat. Mus. p. 255 (1909). 



Cynopterus sphinx 7. montaui (wee Robin), Matschie, Megachir. 

 p. 75 (pt.) (1899). f. moatanoi, Trouessart, Cat. Mamm., Svppl. 

 p. 62 (pt.) (1904). 



Cynopterus montanoi (pt.), Miller, Proc. U.S. Nat. Mus. xxxi. p. 274 

 "(1906: Rhio-Linga Arch.). 



Cynopterus sphinx (nee Vahl), Bonhote, P. Z. S. 1900, p. 191 (pt.) 

 (Nan) ; id., P. Z. S. 19U2, i. p. 38 (N. Chieugmai) ; id., Fase. 

 Mul., Zool. i. p. 14 (pt.) (1903; Biserat, Jalor ; compare C. bra- 

 chyotis) ; id., P. Z. S. 1907, p. 8 (Nha-lrang, Annam). 



Cynopterus pagensis. Miller, Proc. Biol. Soc. Wash. xix. p. 62 

 "(1 May, 1906: North Pagi I); id., Fam. Sf Gen. Bats, p. 49 

 (1907) ; Lyon Sf OMjood, Cat. Types Mamm. U.S. Nat. Mus. p. 256 

 (1909). 



Differential characters. — The largest form of C. brachyotis: fore- 

 arm 65-72 mm. 



The table below shows the principal differential characters 

 of the present form as compared with C. sjjhin.v si^hinx and 

 C. bracJiyotis brachi/oiis, both of which extend into the area of 

 ((j?i7m^(/ms, the former in the north, the latter in the south. C'.b. 

 angulatus is practically equal in general size to 0. s. sphinx, but 

 easily distinguished by its relatively shorter cranial rostrum (orbit 

 to nares less than one-fourth of total length of skull) and shorter 

 ears ; the metacarpals and phalanges average a little shorter, tlie 

 skull rather smaller and more delicate, and the tooth-rows a little 

 shorter. From C. b. brachyotis it diU'ers only by its larger size ; 

 the average difference in tliis respect is very conspicuous, but an 

 absolutely hard-and-fast line between the two forms does not exist, 

 small individuals oiamjuhitus being in every respect indistinguish- 

 able from the largest of brachyotis (see also p. 617). On the whole, 

 however, anr/ulatus is one of the best differentiated forms of 



brachyotis. 



s. sphbur. h. anyulains. h. brachyotis. 



17 skulls, 34 skulls, 05 skulls, 



21 gpecim. 34 specim. 75 specim. 



Skull, lambda to gnat hion ... .31-5-34-5 30-5-3S-2 27 -SO-7 mm. 



„ condylo-basal length... 80o-33-6 29 5-32 25-8-29-5 „ 



„ rostrum 8 - 9-1 65- 8-2 6 - 7'4 „ 



Mandible 24o-27 2 22-8-2r)-5 20-2v22-8 „ 



c-ni', crowns 10-8-12-2 10-2-llS 8-8-10-4 „ 



Forearm 66 -73-.=> fi5 ^72 hi -68 



3rd disjit, metacarpal 42 -475 40 -47 35o-42-5 „ 



1st phalanx 29-33 26o-31-o 24-5^29 „ 



Ear from orifice 18 -195 Ifi -1« 15 -17 



Tibia 25 -27 5 23-5-27-5 21 -25-5 „ 



