On a second f^pecies of Modiocus. \A 7 



Sl<ull with a loiif( slciuler muzzle; interorbital region 

 broad, cd^cd witli well-defined rid^os, bnt without postorbital 

 projections; outer wall of anteorbital foramen reduced to a 

 narrow bar less than half the breadth of the corresponding 

 ])ait in ]j. aquilus ixud Jiavopundafus; it is, however, simi- 

 larly narrow in the W.- African L. sikapusi. 



Incisors more as in Mus tlnin in other Lophuromys, their 

 anterior surface not curved round in the way generally 

 characteristic of the present genus. JMolars very broad, with 

 well-defined cusps; their pattern as usual. 



Dimensions of the type (measured in flesh) : — 

 Head and body 118 mm.; tail 111; hind foot 22"5; 

 ear 23. 



Skull : greatest length 30"5 ; basilar length 2-4 ; greatest 

 breadth l-i*3 ; nasals 14 x 3*2 ; interorbital breadth 6*7 ; 

 diastema 8; palatilar length 12*4; palatine foramina ^'6; 

 length of upper molar series 4"8. 

 Alt. 6000'. 



Tijpe. Adult male. B M. no. 6. 7. 1. 170. Original 

 number 608. Collected 31st December, 1905, by R. B. 

 Woosnam. Nine specimens. 



This striking species is widely different from any of the 

 Central- and East- African forms of Lophuromi/s, and might 

 almost be considered generically distinct were it not that the 

 West-African L. sikapusi also possesses some of its characters- 

 Its large ears, long tail, and peculiar oliv^e-colonred white- 

 speckled fur readily distinguish the species from all its allies, 

 and I have much pleasure in naming it after Mr. E,. B. 

 Woosnam, to whose abilities so much of the success of tlte 

 Ruwenzori expedition is due. 



XXI. — On a second Species of the Silui'i'd Genus Mochocus. 

 By G. A. BOULENGER, F.R.S. 



When dealing in these ' Annals,' a few years ago *, with the 

 little- known genus Mochocus, J oanu'is {Rhinoglanis, Giinther), 

 I was acquainted wntli one species only, as I consider Rhino- 

 qlanis typus, Gthr., from Gondokoro, and R. VannateUiiy 

 Vincig., from Lake Rudolf, as specifically identical with the 

 incorrectly described Mochocus niloticus of de Joannis, of 

 which I had then received a i&vf specimens from Assuan, 

 where the fish had been rediscovered by Mr. Loat. The 

 * Vol. vi. 1900, p. 525. 



