416 Annals of the South African Museum. 



1910. Sphaeroma savignii, Stebbing, Gen. Cat. S.A. Crust, p. 432. 

 (Quoted from Krauss.) 



Body nearly parallel-sided, convex, smooth and glabrous. 



Head as long as 1st peraeon segment, which is not much longer 

 than the following segments, 7th segment entirely without trace of 

 tubercles or lobes. Epimera not distinct from segments, continuing 

 in same plane as segments, their free ends quadrate, 6th and 7th 

 slightly produced backwards. 



Pleon with 1st segment not concealed, even in median line, 

 segments 1-4 without ornamentation. Telson convex, rounded, 

 apex with a small semicircular notch, ventrally grooved. 



First antenna, 1st and 2nd joints stout, upper and lower margins 

 keeled, whole of inner face of 2nd and distal end of 1st with a 

 median keel, 3rd joint slender, almost equal to 2nd, flagellum as 

 long as 1st joint, 12-jointed. 



Second antenna reaching to 3rd peraeon segment, 1st joint small, 

 2nd and 4th subequal, 3rd a little shorter and 5th a little longer, 

 flagellum a little longer than peduncle, 19-jointed. 



Epistome proximally truncate, lateral margins convex ; upper lip 

 distally straight with slight median prominence, setose. 



Lower lip, lobes short and broad, apices rounded, setose. 



Mandibles stout, cutting-edge blunt, entire, secondary cutting-edge 

 in left tridentate, in right represented by 2 translucent plates 

 with truncate and denticulate apices, spine-row with ca. 6 spines 

 in left, ca. 8 in right, palp with 1st joint longest, 2nd and 3rd 

 subequal. 



First maxilla, outer plate with 7 spines, the 3 outer ones denticu- 

 late on their outer edges, the 4 inner ones on their inner edges, 

 inner plate with 4 plumose setae. 



Second maxilla, outer and middle plates each with 6 denticulate 

 spines. 



Maxilliped, inner plate shorter than 2nd joint in $ , almost as 

 long in ? , with 1 coupling-hook. 



First peraeopod stout, 3rd joint distally expanded externally, 

 setulose, with 1 outstanding spine, 4th joint also expanded, 5th 

 small, triangular, 6th ovate, inner margin of 4th, 5th and 6th joints 

 with short, thick fur, inner margin of 7th with regular close-set 

 denticles. 



Second to seventh peraeopods similar but longer, 2nd and 3rd 

 joints subequal, 4th not so prominently expanded, 5th oblong, 

 6th elongate-oblong. Secondary unguis on all peraeopods simple, 

 entire. 



