52 SMITHSONIAN MISCELLANEOUS COLLECTIONS [vOL. 45 



brown. A slight burnt-sienna wash on shoulders. Head, face, and 

 chin burnt-sienna. Underparts essentially as in the other phases, 

 but everywhere tinged with rufous. 



Skull and teeth. — In general form the skull (pi. vii, figs. 3 and 4; 

 pi. VIII, figs. 3 and 4; pi. ix, figs. 3 and 4) closely resembles that 

 of Galeopitheciis volans (pi. vii, figs, i and 2 ; pi. viii, figs, i and 

 2; pi. IX, figs. I and 2). In fact, when skulls of females are com- 

 pared the only tangible difference appears to be in the form of the 

 basioccipital and foramen magnum. In Galeopithccus satiiratus 

 this bone is narrower than in the mainland animal, and the occipital 

 condyles are set at a less distinct angle. Consequently the foramen 

 magnum is more nearly of the same width above and below, and the 

 whole bony structure surrounding it stands out as more noticeably 

 tubular. This character is equally noticeable in the skull of the male, 

 which is further distinguished by its considerably greater size (see 

 measurements of Galeopithccus volans under G. pumiliis, p. 47). The 

 teeth resemble those of Galeopithccus volans, but are more robust, 

 and the first upper incisor is conspicuously larger. In four of the 

 five skulls this tooth has four well developed cusps, while three is 

 the usual number in the other species. 



M easurements.—^yltrmX measurements of type : total length, 

 725; head and body, 459; tail vertebrae, 266; hind foot, 76 (68) ; 

 front foot, 85 {77); ear from meatus, 20; ear from crown, 16; 

 width of ear, 14. External measurements of adult male from the 

 type locality (No. 121,747) : total length, 653; head and body, 403; 

 tail vertebrae, 250; hind foot, 70 (63) ; front foot, 83 (74). 



Cranial measurements of type : greatest length, 78 ; basal length, 

 74 ; basilar length, 69 ; lateral palatal length, 36.8 ; palatal width at 

 front of first incisor, 14.4 ; palatal width at space between canine and 

 first premolar, 23.6 ; distance between inner edge of posterior molars 

 (alveoli), 16.8; least distance from orbit to anterior nares, 28; 

 zygomatic breadth, 45; greatest orbital breadth, 51; least inter- 

 orbital breadth, 22 ; breadth of braincase above roots of zygomata, 

 27 ; mastoid breadth, 34.6 ; greatest depth of braincase, 20 ; occipital 

 depth, 16.6 ; mandible, 54 ; depth of mandible between canine and 

 first premolar, 6.6 ; depth of mandible through coronoid process, 23 ; 

 maxillary toothrow (alveoli), 38; mandibular toothrow (alveoli), 37. 



Cranial measurements of adult male (No. 121,747: greatest 

 length, 73 ; basal length, 70 ; basilar length, 65.6 ; lateral palatal 

 length, 34 ; palatal width at space between canine and first premolar, 

 23 ; zygomatic breadth, 46 ; mandible, 55 ; maxillary toothrow 

 (alveoli), 37; mandibular toothrow (alveoli), 37. 



