1895.^0.8, SOUTII-AFRICAX EN"TOM(1STRACA. 2; 



except in individuals provided with winter-eggs. In these, however, this 

 part is very distinctly and regularly reticulated with, mostly, hexagonal 

 meshes. The inferior edges of the valves are. in their posterior part, finely 

 ciliated, the cilia originating, as in most other species, from a ridge just 

 witliin the margin. The infero-posteal corners are each armed with a 

 well-marked, posteriorh'-pointing denticle, of which no trace is foimd in 

 an)' of the other known species. 



The eye is of moderate size, and has the cn,-stalline bodies rather 

 small, though distinct. 



The ocellus is somewhat smaller than the eye, and located about 

 half way bet^veen the latter and the tip of the rostrum. 



The antennulæ are subfusiform in shape and tipped by tlie usual 

 fascicle of olfactory- papillæ. They do not fully extend to the tip of the 

 rostrum. 



The antennae are comparatively short and of quite normal structure. 



The lamellar expansion of the labrum is rather large, seciuiform, and 

 has the edge divided into 4 very conspicuous serrations, not found in any 

 of the other species. 



The tail (fig. 11) agrees in its shape wiüi that in most other species 

 of the genus, being rather narrow, and not much elongated. The postanal 

 angle is strongly prominent, aaite, and occurs almost in the middle of the 

 dorsal edge. The distal part of the tail is of an almost uniform breadth, 

 and slightly incised at the tip, the incision being defined, in front, by an 

 obtuse prominence carrying the caudal claws. The latter are not parti- 

 cularly strong, horn-coloured, and each armed, at the base, with a well- 

 marked denticle. The anteanal denticles are well defined, and from 10 to 

 12 on each side. 



The colour is yellowish brown or corneous, the upper part of the 

 carapace assuming, in specimens with winter-eggs, a ven,- dark, almost 

 black hue. 



The adult male (fig. 12), as usual, is much smaller than the female, 

 scarcely exceeding in length 0,27 mm., and has the body comparatively 

 less broad, with the dorsal face, as it were, gibbous in front of the middle, 

 its posterior part being straight. The inferior edges of the valves exhibit, 

 behind the median protuberance, a slight sinus not found in female speci- 

 mens. The antennulæ are comparatively thicker, with the olfactory- pa- 

 pillæ much more fully developed. The ist pair of legs have each a 

 strong hook, which projects with its tip beyond the edges of the valves. 

 The tail fig. 13) is comparatively narrower than in the female, and has 

 the postanal angle far less prominent and rounded; below it, the dorsal 



