34:0 Annals of the Soutli African Mnseiiiu. 



Gen. novum NASINATALIS. 



Carapace broader than long. Pleon of female distinctly seven- 

 segmented, the earlier (first four) segments visible in dorsal view. 

 First antennte small, not contiguous with the eyes. Outer lamina 

 of the second maxillse narrowed at both ends. Exopod of the 

 second maxillipeds very long and narrow, ending in a short genicu- 

 late two-jointed flagellum, penultimate joint of endopod wider than 

 either of the neighbouring joints. Third maxillipeds extending 

 beyond the front of the carapace, the narrow apices of the fourth 

 joint bending so as to close upon the front ; this joint, which is 

 rather longer than the third, is broad at the base and almost 

 conceals the three little terminal joints attached some way below 

 its apex ; the third and fourth joints and the exopod, which a little 

 overtops the third, are smooth on the inner surface but strikingly 

 denticulate on the ventral or outer surface. The chelipeds or first 

 perseopods are inserted close to the third maxillipeds, but at a great 

 distance from the remaining ambulatory pairs, which are crowded 

 together, the fourth and fifth much shorter than the second and 

 third, and having a tendency to assume a dorsal position. The 

 female has pairs of slender biramous pleopods, with each ramus 

 uniarfciculate, on the second, third, fourth, and fifth segments. 



It is not easy to say in what division or subdivision of the 

 Oxystomata this genus should be placed. The species for which 

 it is founded has some resemblance to Cyclodoriype uncifera, 

 Ortmann, but in Cyclodorippe the pleon has only six segments 

 distinct. The second maxillipeds approach those of Ehalia, with 

 which again the pleon will not agree. The third maxillipeds in 

 their denticulation and produced fourth joint tend towards 

 Cymonomits granulatus, Norman, but in that species the female 

 is credited with only three pairs of pleopods. 



Nasinatalis disjunctipes, n. sp. 



Plate XLII. 



The carapace may be described as rounded hexagonal, the hind 

 mai'gin broadly concave, the whole surface above and below 

 denticulate, with the strongest teeth on the antero-lateral max'gins. 

 The sternum and the back of the dilated pleon are also more or 

 less roughened. The small eyes embedded in spicules, with faintly 

 orange- coloured faceted cornea, are placed on two elevated tracts 

 at some distance behind the small first antennae. These are not 

 easily brought out of the groove in which they lie, one on either 



