Contributions to the Crustacean Fauna of South Africa. 375 



I follow Hansen (1905) and Stebbing (in 1902) in keeping E. gigas 

 (Leach) and E. lanceolatum (White) separate, and the above 

 synonymy refers only to the form known as E. gigas and figured by 

 Stebbing in 1900. Stebbing included the species in the South 

 African fauna from an examination of specimens from the Buffalo 

 River. These specimens however are immature. I have 

 examined a large series of all ages collected in the Cape Peninsula ; 

 those of the same size as Stebbing's specimens are in all respects 

 indistinguishable from his, but the adults have the uropods extending 

 to the end of the telson and of a different shape. There seems 

 therefore to be some little doubt as to the specific identity of the 

 Cape and the Falkland Islands specimens. Owing to the absence of 

 authenticated specimens of E. gigas from the latter locality I am not 

 at present able to carry out a detailed comparison of the two forms. 



On the other hand, the identity of Krauss' jurinii with the form 

 here called gigas is certain (see Introduction). 



Specimens from Salt Eiver (Cape Town) in a " pool half a mile 

 from sea" (Dr. W F. Purcell, S.A.M. No. 9869) have the inner 

 ramus of the uropods sparsely setose, the outer ramus apically 

 subacute and minutely serrulate on outer distal margin, both 

 margins setose, the inner margin especially so. The uropods of the 

 Buffalo Eiver specimens identified by Stebbing are also setose, but 

 the other specimens from Table Bay have the uropods nonsetose or 

 very nearly so ; this is the case also with the Falkland Islands 

 specimens. 



Stebbing recorded also E. lanceolatum (White) from Sebastian 

 Bay. I have collected other specimens in Table Bay which appear 

 to be referable to that species. Dr. W. M. Tattersall has kindly 

 examined them and states that he considers the identification correct. 

 However, as I have seen no authentic specimens of lanceolatum I 

 think it best to exclude description and localities of the South 

 African form from this present paper. 



EXOSPHAEBOMA KRAussi, Tattersall. 

 (Plate XXXII. D.) 



1843. Spliaeroma tristense, Krauss, Siidafrik. Crust, p. 65 (non 



Leach). 

 1910. ,, Stebbing, Gen. Cat. S.A. Crust, p. 427. 



(Quotes Krauss.) 



1913. Exospliaeroma kraussi, Tattersall, Tr. Eoy. Soc. Edinb. 



vol. 49, pt. 4, p. 884, pi. figs. 

 2,6 (?). 



