lit PlERul'fS HVl'OMKLAXrS CANU3. 



l)uflV, ])roduch"ig as general effect a shade very nearly approaching 

 liroccoli-brown. Mantle dark chestnut, passing through a still 

 darker shade on sides of neck into almost seal-brown on foreneck ; 

 colour of foreneck continued backward on centre of breast, gradually 

 merging into the broccoli-brown of the rest of the underside. 

 Crown and sides of head grizzled mouse-grey and seal-brown ; throat 

 blackish seal-brown. 



(3) Blackish phase (S jun., P. Laut, Aug., 104737).— Eack 

 glossy seal-brown thinly sprinkled with greyish-w^hite hairs particu- 

 larly on rump and thighs. The whole of the underside from throat 

 to iuterfemoral, including flanks, glossy blackish seal-brown, with 

 a faint indication .)f a brighter (glossy seal-brown) tinge on fore- 

 neck ; a few greyish-white hairs scattered on breast and belly. 

 Mantle dark chocolate. Crown and sides of head dark seal-brown. 

 Phase (1), as described above, is chiefly characterized by the 

 bright (chestnut, hazel, ocliraceous) colour of the head, breast, and 

 belly ; but the flanks may occasionally be thickly grizzled with pale 

 greyish. In phase (2) the greyish admixture has spread over the 

 head, flanks, belly, and sides of breast, entirely or partly replacing 

 the normally brighter colour of these portions of the pelage ; at the 

 same time the colour of the mantle and foreneck is darkened to 

 chestnut or seal-brown. It is probable that a larger series will 

 show a gradual transition from (1) to (2). The blackish phase (3) 

 stands apparently more isolated ; it seems to be due to a partial or, 

 in some places, total suppression of the greyish element, combined 

 with a darkening of the chestnut parts into chocolate (mantle) and 

 blackish seal-brown (head and underparts). 

 Measuranenis. On pp. 117, 118. 



Specimens exainiiwd. Four, from the collections of the U.S. 

 National * and British Museums. 



Range. North Natuna Islands : Pulo Panjang, P. Pandak, P. Laut. 

 Type in collection. 



llemarls. — This form belongs to a small group of races of 

 Pt. hypomelanus characterized (so far as the normal light-coloured 

 phase is concerned) by the strong predominance of silvery white in 

 the colour of the rump and back. Three races of this group are 

 known. Ft. h. canus, lepidus, and annectens, distributed over probably 

 all the islands in the S. China Sea ; in two of these races, canus 

 (N. Natunas) and lepidus (Tambelan group, P. Aor, P. Tioman), the 

 teeth average rather larger than usual in the species. Pt. h. canus is 

 very closely related to lepidus, differing, in its normal phase, only in 

 the conspicuously brighter tinge of the mantle and head ; the blackish 

 phase is apparently indistinguishable from that of lepidus ; to the 

 phase described above under (2) I have seen no equivalent in lejjidits. 



a. 9 ad. sk.; skull. Pulo Panjang, N. Natunas ; Tring Museum. 95.11.8.2. 



July, 1894 {E. Hose). 



6. d' ad. sk. ; skull. Pulo Pandak, N. Natunas ; Tring Museum. 95.11.8.3. 



Si'pt. 1894 (C'h. Hose). {Type <if subspecies.) 



r. 5 acb sk. ; skull. I'ulo Laut, N. Natunas: Tring IVIuseum. 95.11.8.4. 



Sept. 1894 {E. Huse). 



* r^ jun.skin .ind skull; Pulo Ln.il, N. Nut.nKi«, Aug. 8, 190a {Dr. W. L. 

 AbboH); Reg. no. lOlT'iT. 



