Contributions to the Crustacean Fauna of South Africa. 353 



anterior margin slightly convex on either side between the eyes and 

 the short, squarish median process. Eyes moderately large, on the 

 lateral margins. 



Peraeon segment 1 embracing the head, nearly twice as long as 2, 

 segments 2-5 increasing slightly in length, 6 and 7 shorter ; segments 

 3-6 with a slight transverse groove across the middle of the segment, 

 all the segments except the 1st with the posterior margin setose, more 

 strongly so on the posterior segments, segments 5-7 in addition with 

 a transverse row of pointed tubercles on the posterior margin. 



Side-plates on segments 2-4 quadrangular, as long as their segments, 

 those on segments 5-7 moderately produced, apically subacute. 



Pleon segment 1 entirely concealed by 7th peraeon segment ; 

 segment 2 bounded laterally by the last pair of side-plates, segments 

 3 and 4 produced laterally, 4 overlapping 5, segments 2-5 each with a 

 transverse row of granules and setae. 



Telson about as broad as long, triangular, margins sinuous, apex 

 narrowly rounded, with long plumose setae and 6 spines, dorsal surface 

 irregularly and not densely granulate, setose. 



Frontal lamina completely fused with the median process of head. 



Epistome and upper lip projecting forwards, both broader than 

 long, upper lip a little longer than epistome, distal margin emargiuate, 

 lateral angles rounded. 



Antenna 1 reaching to middle of peraeon segment 1, 1st and 2nd 

 joints rather indistinctly separated, together a little longer than 3rd, 

 flagellum subequal to peduncle, 9-joiuted. 



Antenna 2 reaching to end of peraeon segment 1, 4th and 5th joints 

 subequal, flagellum scarcely as long as peduncle, 14-joiuted. 



Mandible very stout, projecting forwards, cutting process strongly 

 chitinised, brown, acute, slightly incurved, secondary cutting-edge 

 (proportionately) very small, 4 dentate, molar normal, serrate, palp 

 small, 1st and 2nd joints equal, 3rd shorter. 



Maxilla 1, outer plate large, with 13 spines, the largest ones faintly 

 denticulate, inner plate much smaller than outer, with 3 very stout 

 plumose setae. 



Maxilla 2, outer and middle plates subequal, inner considerably 

 shorter, its innermost setae stouter than the rest. 



Maxilliped, 2nd joint longest, but not elongate, 4th and 5th broadest, 

 6th and 7th much narrower than 5th, inner plate very small, with 

 1 coupling-hook. 



Peraeopod 1, 4th joint scarcely produced on anterior apex, 5th small, 

 uuderridmg 6th, 6th cylindrical, twice as long as broad, inner margins 

 of 4th-6th with respectively 9, 3, 14 strong curved spines. 



