56 ZOOLOGICAL EESULTS OF THE EUWENZORI EXPEDITION. 



to the fifth abdominal somites. In other specimens the papillae on the second somite 

 are distinct, but those on the following somites are much less so. It is possible that 

 these latter specimens are males, but I could find no trace of appendages on the first 

 somite, where they occur in the adult males. The carapace of the young specimens 

 measures about 3'0 X 2-7 mm. 



lAst of Localities. 



"Ruwenzori, 6500 ft. Presented by Sir H. H. Johnston, K.C.B." 



Seven specimens (4 c? , 3 ? ), from 12"5 to 25 mm. in length of carapace. 



"From a tributary of the Mpanga Eiver, E. Ruwenzori. Ruwenzori Expedition." 

 Three specimens (2 d , 1 ? ), from 31-33 mm. in length. 



" Small brook running into the Mubuku River, E. Ruwenzori. Ruwenzori Expedition." 

 Two specimens ( d S ), 29-5 and 33 mm. in length. 



" Mubuku River, E. Ruwenzori, 6900 ft. Ruwenzori Expedition." 

 Six specimens (3 d , 3 $ ), from 13"5 to 33'5 mm. in length. 



" From a small stream near Irumu, Eturi River. Ruwenzori Expedition." 

 One specimen ( d ), 27 mm. in length. 



The figures accompanying this paper were drawn by Miss G. M. Woodward. 



