1.10 Messrs. J. E. Cooper and H. B. Preston on 



with a subterminal ring (2-3 ram.) buffy white. On the 

 flanks, shoulders, &c. the colour-pattern of the hairs is as in 

 the younger animal. On the forehead, between the eyes, the 

 hairs are almost black, but the patch does not extend back- 

 wards to between the ears. Superciliary and dorsal marks 

 tawny, the former paler. Throat, belly, and inner side of 

 limbs buffy white (buff in the type). 



Skull stout, tuberosities on palation scarcely more than 

 indicated. Bulla? small. 



Dimensions of type (taken on the skin) : — 



Head and body 580 mm.; hind foot 73. 



Skull : greatest length 89 ; basilar length 80 ; zygomatic 

 breadth 54; nasals, length 21, posterior breadth 22, anterior 

 breadth 8 ; diastema 13 ; upper molar series 35. 



Hah. Mlanji, Nyasalaud. 



Type. Old male (Stage VIII.). Collected by Mr. Brown. 



An almost equally old female, collected 23rd December, 

 1900, and presented to the Natural History Museum by 

 Col. Manning, is in such bad fur that the strikingly dark 

 coloration of tiiis form has not been appreciated. A young 

 female (about Stage VI.) recalls the coloration of ruddi, but 

 the dorsal mark is already quite dark. 



XIV. — Diagnoses of new Species of Marine and Freshwater 

 Shells from the Falkland Islands, including Descriptions of 

 Two new Genera of Marine Felecgpoda. By J. E. COOPER 

 and H. B. Peeston, F.Z.S. 



[Plate IV.] 



The following contributions to the somewhat meagre 

 molluscan fauna, as at present known, of the Falkland 

 Islands are based upon material recently collected by 

 Mr. Arthur F. Cobb. Upon microscopic examination of the 

 hinge-teeth of two small species we have been unable to 

 refer these to any hitherto known genera, and have therefore 

 given diagnoses of them in the present paper. 



Limnwa brunneoflavida, sp. n. (Fig. 1.) 



Shell ovately fusiform, polished, opaque, yellowish brown ; 

 remaining whorls 3, convex, transversely striate with lines 

 of growth, and bearing traces of fine, vvavy, spiral striae; 

 sutures somewhat deeply impressed ; columella white, arched, 



