Annals of the South African Museum. 



the terminal protuberance, but not on the hind edges of the valves. 

 Head comparatively small and somewhat prominent, with the dorsal 

 margin evenly curved, front forming below an acute angle clothed 

 anteriorly with a number of minute denticles ; rostral projection 

 extremely small. Eye comparatively large, with the refractive bodies 

 very conspicuous ; ocellus small, rhomboid in form. Tail-piece com- 

 paratively less broad than in the two preceding species, with the supra- 

 anal angle rather produced ; anal denticles about eight on each side ; 

 apical claws without secondary denticles at the base, I nit finely ciliated 

 along the concave edge. 



Colour light ochraceous, with a tinge of chestnut. 



Length of shell reaching 2'4 mm. 



Remarks. This form, described by the present author in 1895, 

 is allied to the European species 8. serrulata (Koch), but differs some- 

 what in the shape of the head and in the armature of the hind part of 

 the shell ; the denticles being not, as in S. serrulata, continued on the 

 posterior edges of the valves. 



Occurrence. This form was reared by the present author from mud 

 taken at Knysna. It has also been recorded by Prof. Brady from 

 Richmond, Natal. In other parts of the world it has not yet been 

 observed. 



GEN. 3. SCAPHOLEBEEIS, Schoedeler. 



Remarks. Of this characteristic genus at least four well-defined 

 species are known from the northern hemisphere. To the fauna of 

 ape Colony belongs another species, to be described below. 



11. SCAPHOLEBEBIS KINGI, G. 0. SarS. 



(Plate XXXII, figs. 3, 3 a, b). 



Scapholeberis kinyi, G. O. Sars. Fresh-water Eutomostraca from 

 China and Sumatra. Arch. f. Mathem. u. Naturv., 1903, p. 8, pi. 1, 

 figs. 2, 2 a-c. 



Syn. : Daplmia mucronata, King (not Miiller). 



Specific Characters Female. Carapace rather tumid, seen laterally, 

 oval quadrangular in outline, being transversely truncated behind, 

 with the inferior corner of each valve produced to a comparatively short 

 spmiform process pointing backwards, inferior edges of valves straight 

 and slightly angular in front. Head less prominent than in the type 

 species, with the frontal part unarmed and narrowly rounded, inferior 

 edge deeply concave, rostrum short and blunt, Shell sculptured with 

 distinct transverse striae, particularly strong and ridge-like in the 



