1921] 229 



XII. SEVEN NEW MALAYSIAN MAMMALS. 



By C. Boden Kloss, f.z.s. 



1. Balionycteris maculata seimundi subsp. nov. 



Like B. m. maculata (Thos.) of Borneo but witli the 

 poslorbital processes much less developed ; short and obtuse 

 instead of pointed and elongated.^ 



Male. Head and nape black, shoulders and mid-back 

 mummy brown, rump and sides cinnamon bi"o\cn Under- 

 parts hair brown, the fur of the abdomen lipped with 

 drabby white, of the fore-neck very indistinctly with drab. 

 Ears and menbranes black ; a small tawny spot on the 

 anterior margin of the ear near the base, another near the 

 inner angle of the eye and a pale streak near the angle of 

 the mouth : finger joints tawny and a f(nv small tawny 

 spots scattered irregularly over the wing membranes. The 

 imdersurfacc of the fore limbs and the membranes near Ihe 

 body distinctly clad with whitish hair. 



Female. Only ditfers from the male in jjaving no 

 drab on the fore-neck and less cinnamon brown on the 

 rump. 



Co-types. Adult male and female (skins and skulls) 

 from the junction of the Tahan and Teku Rivers at 

 the foot of Gunong Tahan, Pahang, collected by Mr. E. 

 Seimund on 26 Februarv 1921, F.M.S. Mus., No. 1/21 and 

 2/21. 



Specimens examined. The co-types, and three 

 alcoholic specimens, viz., a female with a young one and 

 a gravid female : all of which formed a small bimch in the 

 forest. 



Collectors e.vlernal measurements of nude and 

 female : head and body, 57, 57 ; forearm, 43, 42 ; hindfoot, 

 9, 9 ; ear, 9, 9 mm. 



Skull measurements : greatest length, 22 -5, 22-4 ; 

 condylo-basal length, 21 • 1, 21 • 1 ; palatal length, 11 • 0, 11 • 2 ; 

 maxillary tooth row including canine (alveoli) 7-0, 7-0 ; 

 interorbital breadth, 5-2, 4-8 ; breadth across postorbital 

 processes, 7-3, ()-5 ; breadth of braincase, 10 2, lO-O ; 

 zygomatic breadth, 15-6, 15-1 mm. 



Remarks. Until last year the two Cynoplrrine genera 

 Balionycteris and Dyacopterus were only known from 

 Borneo where each is represented by a single species, 

 B. maculata (Thos.) and D. spadiceus (Thos.). In Ann. 

 and Mag. Nat. Hist. (9) \, 1920, p 284, Mr. Thomas 

 described a race of the latter, brooksi, from specimens 

 collected near Bencoolen, Sumatra, by Mr. C. J. Brooks 

 and now we have discovered the former in the Malay 

 Peninsula. We may reasonably' expect to meet someday 

 with Dyacopterus in the Peninsula and Balionycteris in 

 Sumatra. 



' Cf. Andersen, Gat. Chir. Bfit. Mus. I, 1912, p. 655, fig. 55. 



