Contributions to the Crustacean Fauna of South Africa. 403 



STENETRIUM SALDANHA n. sp. 



(Plate XVI. Figs 33 and 34.) 



Body with a very few setae on the lateral portions only. A low, 

 broad, rounded dorsal ridge runs throughout the peraeou and pleon, 

 most noticeable on the latter but nowhere prominent. Antero-lateral 

 angles of head prominent, acute, not incurved, teeth forming the inner 

 angles of the sockets of the 2nd antenna prominent, acute ; rostrum 

 very prominent, longer than broad, tapering to an acute point in $ , 

 subacute in $ . Eyes reniform. First segment of peraeon scarcely 

 longer than 2nd, autero-lateral angles fairly prominently produced, 

 acute. Keel on segments 1-4 rather high, with the anterior angles 

 dentiform and subacute, posterior apices of keel on segments 5-7 acute, 

 dentiform, that on segment 7 being very prominent, curved backwards, 

 spiniform. 



Pleon distinctly longer than broad, lateral margin with a single 

 tooth, distal margin obscurely trilobed. 



First antenna, 1st joint largest, 2nd and 3rd subequal, flagellum of 

 12 indistinctly separated joints. 



Second antenna, outer apex of 1st joint acute, but not produced or 

 dentiform, 3rd equal to 1st plus 2nd, scale obovate, apically setose, 

 distal peduncular joints and flagellum lost in both specimens. 



Mouth-parts as in crassimanus ; upper lip distally feebly emarginate, 

 spine-row with 6 spines in left mandible, 12 in right, maxilliped with 

 6th joint half width of 5th, inner plate with 5 coupling-hooks, epipod 

 reaching to end of 5th joint. 



First peraeopod <$ stout, 2nd joint subequal to 3rd-5th together, 

 3rd and 4th acutely produced but not strongly anteriorly, 5th not 

 produced, 6th only a little longer than greatest width, which is across 

 the nearly transverse palm, palm a little shorter than hind margin, 

 straight, with one pointed denticle in middle and a series of stout 

 serrulate spines, the rounded defining angle with one long stout 

 serrulate spine, finger matching palm, inner margin with serrulate 

 spines, 4th-6th joints moderately setose, inferior margin of 6th rather 

 densely setose. In ? similar but smaller arid weaker, palm without a 

 denticle. 



Second to seventh peraeopods as in crassimanus. 



First pleopod $ intermediate between that of crassimanus and that 

 of diazi, outer margin moderately angular, with surface sculpturing 

 and marginal setae only. Operculum in ? tapering to a bifid apex. 



B,est of the pleopods as in crassimanus. 



Uropods lost in both specimens. 



