On Edriophthalma from South America. 343 



inches beyond the abdominal integument and is then 

 pendulous. The preputial sack is then completely evagi- 

 nated. When turgid and erected, the organ projects very 

 much farther and resembles that of a horse in a similar 

 condition (fig. 5, C). 



I am unable to find any structural diflFerence between the 

 penis of Hyaena and that of Proteles as described by Flower, 

 and can thus confirm his remark that^ judging from 

 Daubenton's account^ the male organs in Hyana '* are an 

 almost exact counterpart of those of Proteles.^' I have 

 seen no examples of the male of Crocuta enabling me 

 to substantiate the small differences between the penis 

 of that genus and Hycena, pointed out by Flower on the 

 evidence of a preparation in the Museum of the College 

 of Surgeons. 



Considering the opinion held by some authors that the 

 relationship between the hyaenas and mongooses is tolerably 

 close, the difference in the length of tlie penis and the 

 position of the prepuce in the two groups is remarkable. 

 In the mongooses the prepuce is quite close to the scrotum, 

 as in the Felidae, and the penis is comparatively short, 

 is provided with a bone, and has an elongated urethral 

 orifice on the underside of the glans, which is simple 

 in structure. 



XXXIX. — Edriophthahna from South America. 

 By Alfred O. Walker. 



The Crustacea in tlie following list were received £i-om : — 



(A) Sr. Carlos Moreira, Director of the Laboratory of 

 Economic Entomology in the National Museum of Rio de 

 Janeiro, collected by him '^ on the shore of Capacabana near 

 and outside the harbour of Rio de Janeiro." Of these II., 

 III., VI., and IX. were in considerable numbers, and must 

 have cost the collector not a little time and trouble, espe- 

 cially no. VI., if as active as most of the Talitridse ! The 

 specimens are in excellent condition, reflecting great credit 

 on Sr. Moreira, at whose request examples of each species 

 have been sent to the British Museum (Nat. Hist.). 



(B) Monsieur le Prof. Carlos E. Porter, Editor of the 

 ' Chilian Review of Natural History,' Santiago, Chile, 

 collected at Arica, Chile. 



