1910.] FRESHWATER CRUSTACEA FROM THE TRANSVAAL. 159 



The distal claws of the telson are pectinate, and are provided 

 with small setse. The peetina,te processes are divided into three 

 lots, each arranged in a semi-lunar form (vide fig. 39 b). Anterior 

 to these claws, the telson is fringed by a number of stout bristles ; 

 internal to this fringe, along half its length, groups of minube 

 setee are found. On following the coarse of this fringe of bristles, 

 it is found that they end gradually, passing internally into three 

 or four rows. Still further, a number of minute seta? are found 

 arranged in parallel tiers which run at right angles to the sagittal 

 plane of the telson. 



The caudal styles are partly plumose ; the dorsal part of the 

 telson extending from these styles, so as to include the finger-like 

 processes which project into the brood-pouch, is hairy. 



Locality. This striking and beautiful Daphnia was found fairly 

 abundantly in Lake Chrissieand in some of the other larger pans. 



Order COPEPODA. 



In all, four species of Copepoda were taken. But it is an 

 interesting fact that although the two species described below 

 were found in great quantities, only one specimen of Cyclops and 

 one specimen of Harpactid were taken. The latter may have 

 easily been overlooked on account of its small size, but the scarcity 

 of Cyclops is not a little remarkable. Unfortunately the Cyclops 

 was not well enough preserved to allow identification. 



Family Centropagid^e. 



Genus Broteas Loven = Lovenula Schmeil. 



Broteas falcifer Loven = Lovenula falcifera Schmeil. 

 (PI. XVI. figs. 45 a, b.) 



Length of male 4 mm. ; of female 3'6 mm. In nearly every 

 detail this species is identical with Broteas falcifer described by 

 G. 0. Sars (8) from the Cape Peninsula ; a few points of 

 structural difference are found : (1) in the length of the antennules, 

 which when flexed back in line with the body reach as far as the 

 proximal part of the caudal rami ; (2) in the fact that the three 

 outer bristles on the right furcal ramus in the male, instead of 

 being smooth, as in the case of the species described and figured 

 by G. 0. Sars, are serrated on the inner side only in the case of 

 the two internal and on each side in the case of the third bristle 

 internal to these two ; (3) in that the small fine bristle on each 

 ramus, which occupies an internal position, slightly removed from 

 the fringe of stout bristles, is somewhat longer than in B. falcifer. 

 The caudal rami are asymmetrical. 



It is considered that this Centropagid is no more than a local 

 variety of the Gape form and has not therefore been given specific 

 distinction. 



Abundant in the larger pans. 



