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Show 268 MESSRS. O. THOMAS AND H. SCHWANN ON [Apr. 18, 28. Mus chrysophilus de W in t. d . 577, 593, 596, 661,670. $ . 592, 575, 591, 658. ' Sibudeni. 3 . 620. $ . 617,627. Jususie Yalley. S . 808, 812, 820, 858. $ . 797, 821, 835, 868. Umvolosi. S . 885, 919. cJ. 918. Ngoye Hills. " Zulu name ‘ Gwenca.' " Inhabits the clumps of rocks on the liill-sides and krantzes, as in other parts of the country ; it occasionally invades houses, where it is a perfect nuisance. Mainly a vegetable feeder and nocturnal."--C. H. B. G. 29. Mus DOLICHURUS Smuts. <3. 878. Ngoye Hills. 30. Mus c o u ch a zu lu en sis, subsp. n. <3 . 576, 579, 582, 644. $ . 574. Sibudeni. c3. 513. $ . 571,572. Eshowe. (3. 621, 628. Jususie Valley. (3. 789,807. $ . 786,788. Umvolosi. A long-tailed, fulvous-suffused form of the coucha group. General colour of the upper surface " bistre," with a distinct fulvous suffusion, which is much more marked in some specimens than others. Posterior half of the back strongly pencilled with black. Fur very soft and fine, the hairs of the back about 10 mm. in length. Underfur slaty-grey basally, fulvous at tip. Flanks lighter than back, buffy yellow fading into the greyish white of the under surface. Fur of belly grey basally, dirty white terminally, except on interramia, where it is entirely white. Head coloured like back. Ears covered with minute very dark brown hairs. Hands and feet dirty white or cream-colour, very different from the snowy white feet of true coucha. Tail considerably longer than in coucha, brown above, lighter below; scales about 13 to the centimetre. Skull slightly larger than in the typical subspecies and with longer palatine foramina. Dimensions of the type (measured in the flesh):-Head and body 123 mm.; tail 123 ; hind foot 23 ; ear 19. Skull-greatest length 30-5 ; basilar length 25‘0 ; brain-case breadth 12-0 ; zygomatic breadth 34• 5; length of palatine foramina 7'3 ; length of upper molar series 4‘5. Hob. Umvolosi Station, Zululand. Alt. 70 m. Type. Female. B.M. no. 4.12.3.62. Original number 786. Collected 25 June, 1904. An examination of the type specimen of Smith's coucha, and of other modern specimens from the same region, shows that that animal is a shorter-tailed, smaller, whiter-footed, and greyer form than its representative in Zululand, to which we have therefore decided to give a special name. The only other South African form in this group is M. silaceus Wagn., of which Thomas has examined the type in the Munich |