48 SMITHSONIAN MISCELLANEOUS COLLECTIONS [vOL. 45 



young male (No. 112,427, June 5, 1901) almost exactly resembles the 

 type of Galcopithcciis pnmilus. 



Skull and teeth. — The skull of the female is about as large as that 

 of the male of Galeopithecus volans from the mainland. In form 

 it more closely resembles the skull of the peninsular animal than it 

 does the short broad skull of Galeopithecus pnmilus. Palate and 

 rostrum rather wider than in Galeopithecus volans, but not as wide 

 as in G. pumilus. Teeth essentially as in the related species, but 

 canines, both above and below, and first lower premolar relatively 

 larger, particularly in the male. 



Measurements. — External measurements of type : total length, 

 625 (690) f head and body, 385 (405) ; tail vertebras, 240 (285) ; 

 hind foot, 60 (73) ; hind foot without claws, 54 (65) ; front foot, 

 70 (83) ; front foot without claws, 63 (75) ; ear from meatus, 16 

 (22) ; ear from crown, 13 (18) ; width of ear, 12 (17). 



Cranial measurements of type: greatest length, 67 (77.6) ; basal 

 length, 63 (72.4) ; basilar length, 58 (68) ; lateral palatal length, 30.4 

 (37) ; palatal width at front of first incisor, 12.4 (15) ; palatal width 

 at space between canine and first premolar, 20.4 (23) ; distance 

 between inner edge of posterior molars (alveoli), 15 (17) ; least 

 distance from orbit to anterior nares, 23 (28) ; zygomatic breadth, 

 40 (47.6) ; depth of zygoma, 4 (6) ; greatest orbital length, 42 (50) ; 

 least interorbital breadth, 17.4 (22.6) ; breadth of braincase above 

 roots of zygomata, 25 (26) ; mastoid breadth, 30 (36.4) ; greatest 

 depth of braincase, 17.8 (19) ; occipital depth, 15 (18) ; mandible, 

 50 (57) ; depth of mandible between canine and first premolar, 6.6 

 (7) ; depth of mandible through coronoid process, 20.4 (25.6) ; 

 maxillary toothrow (alveoli), 31.6 (37) ; mandibular toothrow 

 (alveoH), 33.4 (39). 



Specimens examined. — Two, both from Pulo Aor. 



Remarks. — The type is the lightest colored Galeopithecus that I 

 have seen, but whether this character is anything more than an in- 

 dividual peculiarity cannot now be determined. The male, so young 

 that the permanent dentition is not fully in place, very closely re- 

 sembles the type of Galeopithecus pumilus, but is not as small. Its 

 measurements are : total length, 530 ; head and body, 340 ; tail verte- 

 brae, 190; hind foot, 56 (50.4) ; front foot, 61 (56) ; skull, greatest 

 length, 60 ; zygomatic breadth, 37. 



^ Measurements in parenthesis are those of an adult female Galeopithecus 

 volans from Trong, Lower Siam (No. 84,420). 



