On a neio Race of Bli<n\il. 231 



In the poucli of Potorous there arc, tis stated al)Ove, four 

 teats. Ill the usual siu-^le eiubryo pregnancy it ia found that 

 but out' of the niammaiy f^hiuds (Milaigcs in pr<'j)arati()n for 

 the embryo, theotliers reinaiiiinj;; dormant. A luither omious 

 feature is that in the niajoiity of cases the enhirgiiig ^hind 

 corresponds in position to the pre<fnaiit uterus — for example, 

 if one of the {glands of the left side be oidarged, in all proba- 

 bility it will be the left uterus which is pregnant. 



I am not at present able to give any extended observation-* 

 on Betton(]ia. As regards the jiolyprotodont marsupials, 

 they are ail lound to breed during the winter, usually some- 

 what irregularly. Dasyurus, however, is, in Tasmania, so 

 far as my observations go, quite regular, its breeding-season 

 commencing about the third week in June. 



XXVII. — On a neio Race of Bhiral. 

 By Lord Kothschild, F.K.S. 



Pseudois nahoor szechuanensis, subsp. n. 



Pclaye (from mounted specimen). — Face-mask much 

 browner, NOT blackish grey as in n. iiahoor ; neck, sides, and 

 back tinged with mauve, NOT brownish ; lateral black stripes 

 less sharply niaiked and ceasing abru{)tly some 3-4 inches 

 behind shoulder, whereas in n. nahoor they come forward 

 behind and below shoulder, almost joining dark chest-patch ; 

 in the skin of the type these lateral stripes are almost absent, 

 llemaining black markings much less strongly marked and 

 much less well defined ; in the type-skin the dark leg- 

 markings are much reduced. 



Skull. — Horns straighfer and curved directly backwards 

 and downwards, NOT as in typical race curved upwards to 

 form incipient second whorl. Row of teeth more curved 

 inwards towards the front than in the typical race. 



Length of skull from foiamen magnum to the pre- 

 niaxillary 217 mm. 



Length of horns : — 'i'ype: right horn 447 mm. = 18| inches; 

 left horn 444 mm.=;17,5,v inches. Mounted specimen : right 

 horn 5G0 mm. = 22 in:lie3; left horn 540 mm. = 21^ inches. 



Type, Shensi, Dr. J. A. C. Sniitli (lion. >«. C. Kothschild) ; 

 innuuted 8})ecimen, Szechuan (llnvland Ward Trustees). 

 Both in British Museum. 



