VOL. XXVI. 



476 PROCEEDINGS OF THE NATIONAL MUSEUM. 



MACACUS "CYNOMOLGUS" Auct. 

 Macacus cynomoUjus Ksjcy. , not Smkt ojninimhjns Lixn.eus. ^ 



Seven specimens of the common cral)-eiiting macaques were obtained.^ 

 three on Pulo Tuaugku, two on Pulo Mansalar, and two at Tapanulij 

 V>A\\ Sumatra. For measurements, see tahle, pag-e 477. 



MACACUS FUSCUS, new species. 



Tyjye.-OU male (skin and skull). Cat. no. lt41«U, U.S.N.M. 

 Collected on Simalur Island, northwestern Sumatra, Novem])er 20l|j 

 1901 by Dr. W. L. Al)lwtt. Orig-inal number, 131S. 



Characters.--S\m{VAY to Micarus amlro.sus" of the Nicobar Islandsll 

 but smaller and with relatively shorter tail. 



^^^^^._Type: Upperparts and outer surface of limlis blackisl: 

 brown with a paint tinge of drab, each hair drab at })ase and with j 

 wood-brown annulation 2 to 1 mm. in width near tip. As the fur i 

 of a soft, silky quality, the exact effect of the two colors varies con 

 siderably witli reflection of light and with disarrangement of hairs, bu 

 the wood-brown is everywhere very distinct though not in excess Oi 

 the dark underlying brown. Underparts and inner surface of limbs' 

 light bluish gray (very nearly Ridgway's No. 8). This color suffuse 

 cheeks and region surrounding ears. Tail like back above, but wit 

 the light annulations very indistinct, like belly below and at tip. 



Skull mid teeth.— T\^^ skull and teeth resemble those of Macacfu^ 

 urabrosus except for their much smaller size. 



Measurements.— Y.^iQVw^\ measurements of type: Total length, 92(^ 

 head and body, 170; tail vertebra?, 150; hind foot, 125 Average c 

 five males from the type locality: Total length, 939 (905-985); hea 

 and body, 178 (160-195); tail vertebra, 167 (135-190); hind foot, 12 

 (118-130). For details see table, page 177. 



Cranial measurements of type: Greatest length (exclusive of inci 

 sors), 122 (131);^ basal length, 93 (102); l)asilar length, 87 (96); lear 

 palatal length, 19 (57); palatal l)readth (between front molars), 21 (25 

 zygomatic breadth, 83 (90); mastoid breadth, 61 (71); greatest breadt 

 of brain case above roots of zygomata, 60 (61); least breadth of braj 

 case immediately behind orbits, 38.6 (39); orbital breadth, 61 (67 

 least distance from orbit to alveolus of inner incisor, H (19); greate 

 depth of brain case (exclusive of sagittal crest), 15 (50); mandibl 

 .82 (97); greatest depth of ramus, 19 (19.6); maxillary tooth ro 

 (exclusive of incisors), 10 (44.6); mandibular tooth row (exclusive f^ 

 incisors), 15 (5(»); crown of middle upper molar, 7.1 by 7 (8.8 by £ 

 crown of middle lower molar, 8 by 6 (8.2 b}^ 7.1). 



Specimens examined.— Tqh, eight from Simalur Island and two fro 

 Pulo Lasia. 



« Miller, Proc. U. S. Nat. Mus., XXIV, May 28, 1902, p. 789. 

 6 Measurement- in parentheses are those of the type of Macacus mnbrosus, a you ; 

 adult male, with unworn teeth. 



