456 PROCEEDINGS OF THE NATIONAL MUSEUM. voi,. xxviii. 



Avith threo priinarv and three' sul)si(liaiT cn.sps, tl)c anterior series 

 comprising- one large anterior tubercle and one small postero-internal 

 tubercle; middle series comprising one large median and two postero- 

 lateral subsidiary tubercles, one large posterior tubercle having an 

 internal ledge. Middle upper molar with two large and three subsid- 

 iary tubercles, a large anterior tubercle with a prominent antero- 

 internal and two small lateral tubercles, and a single large posterior 

 tubercle joined to the antero-lateral tubercles by low lateral ridges, 

 the external one obsolete. Third upper molar small, its crown a 

 roughened tu])ercle with a minute antero-internal groove and tubercle. 

 The two anterior lower molars are (juadrituberculate with a i)osterior 

 step. The posterior low^er molar has a notched anterior cusp and 

 rounded postcM-ior tul)ercle. The anterior lower molar has the ante- 

 rior cusp but shallowl}' notched. With age, an anterior step is devel- 

 oped in the tirst and second lower molars which does not exist in 

 unworn teeth. 



APOMYS HYLOCCETES, new species. 

 MOUNT APO F0RP:ST-M0U8E. 



Tall-dee' -ahn (Bago])o). 



Type.—MuM female (skin and skull), Cat. No. 125240, U.S.N.M. 

 Collected on Mount Apo at 6,000 feet altitude, southei'n Mindanao, 

 Philippine Islands, July 2, 1904, by Edgar A. Mearns. (Original 

 number, 5096.) 



Characters. — Those of the genus, of which it is a medium-sized 

 member. Head large and rounded; tail scantily and very tinely liaired 

 above and below, the rings distinctly' visible throughout, the hairs 

 between the verticelli extending to the tip of the tail and measuring 

 al)out 2 mm. in length; caudal anmdi numbering about 10 to the cen- 

 timeter; tip of tail white for about 20 mm.; soles of feet entirely 

 naked. In this species the tubercles of the hind foot are more crowded 

 and the two innermost much larger than in Ajxnni/s inKlgtifs (d(\scribed 

 on page 459), the posterior tubercle averaging mm. in length. 



Color. — The type has the upperparts nnunmy })rown, and the under- 

 parts cinnamon-fawn, with a white area in the center of the chest; ])ack, 

 and especially the top of the head tinel}' mixed with black; end of 

 muzzle, and throat, drab-gray; outer surface of fore limbs mouse 

 gray; fore feet whitish; hind feet pale drab-graj^ above, becoming- 

 whitish on the toes, which are tufted at the base of tiie claws; claws 

 horn color; soles flesh color tinged with drab-gray; tail purplish slate 

 above, pale drab-gray below, white all round at tip; whiskers mixed 

 white and brownish black; naked ears smoke gray; wrists drab-gra}^ 

 below; ankles seal brown; pelage of upperparts blackish slate at base, 

 of uuderparts (except in the white area) slate-gray. A 3'oung male 



