300 MR. ROBERT GURNEY ON FRESHWATER [NoV. 29, 



Daphnia sp. 



One of the slides in the collection was unfortunately broken in 

 transit, and from the debris I separated the dried and crumpled 

 body of a Daphnia. It is, however, impossible to make out more 

 than that it belongs to the Daphnia magna group, with a much 

 pointed head and a very well-developed fornix. 



Fam. Lynceid^. 



Leydigia AFRICAN a, sp, n. (Plate XYIII. figs. 5, 6.) 



In general appearance very like L. acanthocercoides. Rostrum 

 short and acute. Shell showing faint striation. Eye very slightly 

 larger than the ocellus (fig. 5). First antenna shorter than the 

 rostrum. Tail closely resembhng that of L. acanthocercoides ^ but 

 differing from it in the presence of a minute tooth at the base of 

 each of the terminal claws, and in the arrangement of the spines 

 and cilia. In L. africana only the first seven spines have accessory 

 spines at their base and the dorsal margin of the tail is not evenly 

 ciliated, but is provided with a few very small spines (fig. 6). 



Length 54 nam. 



Four specimens of this small species are included in the collec- 

 tion, and it is stated by the collector to have been " not at all 

 common." It differs mainly from L. acanthocercoides in its small 

 size and in the relative proportions of the eye and ocellus, which 

 are practically the same size. 



Copepoda. 



Fam. CENTROPAGIDiE. 



LovENULAMEA, sp. n. (Plate XVIII. figs. 7-13.) 



Female. — Body slender, with the anterior segment tapering 

 evenly ; lateral lobes of last segment expanded, symmetrical, and 

 armed each with two minute spines. Tail consisting of two seg- 

 ments only, the anterior one produced laterally into lobes which 

 are asymmetrical. Caudal rami armed with five strong ciliated 

 setse, and a slender one springing from the dorsal surface be- 

 tween the two innermost terminal setse ; inner edges of the rami 

 ciliated. Posterior antennae with outer ramus slightly longer 

 than the inner, but in other respects exactly as in Lovenula 

 falcifera (Loven). Posterior maxillipedes very closely resembling 

 those of L. falcifera^ but the terminal part is distinctly composed 

 of four joints instead of three. The second basal joint bears 

 terminally a small lobe armed with two seta3. In L. falcifera 

 two of the strong terminal spines are borne upon the penultimate 

 joint, and the third upon a small terminal joint, whereas in the 

 present species each is borne upon a separate joint. The 

 swimming-legs agree in all respects with those of L. falcifera. 



