114 Mr. R. Shelford on a 



a parallel to this occurring alone in Crocidura goliath. Par- 

 occipital process modified into a ridge, distinct from and 

 parallel with the main masseteric ridge outside it. Lacrymal 

 foramen large, with expanded and overhanging lip. 



Teeth as usual, the fourth unicuspid slightly smaller than 

 the subequal second and third. 



Dimensions of the type (measured in skin) : — 



Head and body (probably shrunk) 120 mm. ; tail 68 ; hin.d 

 foot (wet) 23 ; ear (wet) 13. 



Skull, condylo-incisive * length 33*7 ; condylo-basal 

 length 33; greatest breadth 14*2 ; anterior breadth across 

 palate 10*1 ; palatal length 15"2 ; upper tooth-row 15*3 ; tip 

 of i 1 to tip of p 4 8'1 ; lower tooth-row 14. 



Hab. Kyetume, near Kampala, Uganda. 



Type. Adult female. B.M. no. 10.5,21.1. Collected by 

 Dr. R. van Someren, and presented through his brother 

 Mr. V. G. van Someren. 



This remarkable shrew is so disproportionately larger than 

 the other members of Sylvisorex that it has developed skull- 

 characters which one was at first disposed to consider as of 

 generic value. But Crocidura goliath gives us in that genus 

 so close a parallel in these characters of skull-ridges and 

 sculpturing to what is found in S. somereni that the latter 

 may safely be assigned to Sylvisorex, with the expectation 

 that other intermediate species will presently turn up. 



XIII. — A new Cavernicolous Cockroach. 

 By R. Shelfoed, M.A., F.L.S. 



Subfam. CoEYDiiirjE. 



Alluaudella, gen. nov. 



Size minute. Antennae elongate, setaceous. Palpi long 

 and slender. Eyes reduced. Pronotum discoidal, anteriorly 

 not covering vertex of head. Tegmina and wings con- 

 siderably exceeding apex of abdomen, identical in texture 

 and clothed with a delicate recumbent pubescence. Tegmina 

 with mediastinal vein short, radial vein bifurcate from base, 

 costals entirely absent, anterior ulnar simple, posterior ulna 

 triramose, one vena spuria between the radial and anterior 

 ulnar veins, anal vein straight, anal field much reduced, one 



* To front conTex surface of incisors. 



