Contributions to the Crustacean Fauna of South Africa. 399 



The four species here described are named after four Portuguese 

 navigators famous in early Cape history. 



STENETRIUM DAGAMA n. sp. 



(Plate XVI. Figs. 28 aud 29.) 



Body with a few long scattered hairs, chiefly on the lateral portions. 

 Antero-lateral angles of head acute, not incurved, rostrum broader 

 than long, autero-lateral angles rounded-quadrate, anterior margin 

 straight. Eyes narrow oblong, curved. 



First peraeon segment scarcely longer than second, its antero-lateral 

 angles fairly prominently produced, acute. Ventral keel raised into 

 a rather high process on segments 1-4, acute 011 1st, rounded on 2-4, 

 keel not so high on segments 5-7, the posterior angles acute, denti- 

 form. The anterior processes are not so strong in the female, but 

 otherwise the keel is similar. 



Pleon about as broad as long, lateral margin with only one tooth, 

 distal margin obscurely trilobed, the median lobe more prominent, 

 subacute. 



First antenna, 1st joint largest, 2nd shorter than 3rd, flagellum 

 composed of ca. 15 joints indistinctly separated. 



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

 dentiform, with 2-3 setae, 3rd joint longer than 1st plus 2nd, scale 

 broadly ovate, apically setose, 4th very short, 6th a trifle longer than 

 5th, flagellum longer than peduncle, with many indistinctly separated 

 joints. 



Mouth-parts as described for crassimanus ; upper lip distally feebly 

 emargiuate, spine-row with 8 serrate spines in left mandible, ca. 18 in 

 right, 2nd joint of maxilliped not so long, 6th less abruptly narrower 

 than 5th, epipod reaching to middle of 5th, inner plate with 5 coupling, 

 hooks. 



First peraeopod ^ , all joints densely clothed with long setae, 3rd 

 and 4th joints strongly produced anteriorly, the apices, however, not 

 very acute, 5th not produced, 6th subtriangular, greatest width equal 

 to length ; hind margins scarcely more than f length of palm, which 

 is crenulate, with 2 more distinct teeth near the hinge and a fringe of 

 regularly spaced spinules ; a large stout spine on the rounded defining 

 angle, finger as long as palm, inner margin regularly spiuose. In $ 

 similar but smaller. 



Second to seventh peraeopods as in crassimanus. 



First pleopod $ , peduncle with 2-3 setae at base of each ramus, 

 rami narrow, thrice as long as broad, with marginal setae only and 



30 



