ARCHIV FOR MATHEMATIK OG NATÜRVIDENSKAB. B. XX. Nr. 8. 



DEC 5 .1898 



On Mégalo ey pris Prineeps, 



A Gigantic Fresh-Water Ostracod From South 



Africa. 



With 1 autographic Plate 

 By G. 0. Saks. 



Introduction. 



In the same collection of South African fresh-water 

 Entomostraca, from which the 2 remarkable Phyllopoda de- 

 scribed by the present author in a previous paper of this 

 Journal were derived, was also found a tube containing 

 some specimens of a Cypridid distinguished by its truly 

 gigantic size, as compared with the hitherto known forms. 

 Believiûg that it might be of interest if I at once made 

 known this giant among the fresh-water Ostracods, I have 

 subjected it to a closer examination, and propose to de- 

 scribe and figure it in the present paper. It constitutes 

 the type of a new genus allied to Herpetocypris, for 

 which the name Megalocypris may be proposed. In ad- 

 dition to the form here described, another nearly-allied 

 species, likewise of very large dimensions, is known to me, 

 it having been raised during the past summer from dried 

 mud taken from a shallow lake in the neighbourhood of 

 Port Elizabeth. It will be described ia a subsequent paper, 

 together with several other Entomostraca raised from the 

 same mud. 



