Contributions to the Crustacean Fauna of South Africa. 431 



than 1st, 4th segment in ? as long as head and first 2 segments 

 together, not laterally expanded, segments 5-7 subequal, as long as 

 first 3 segments together, in $ 4th segment as long as 2nd and 3rd 

 together, segments 5-7 subequal, twice as long as 4th and thrice 

 length of 3rd. Epimera distinct except on 1st segment, narrow, 

 inferior margin of those on 5th-7th segments angular. Pleon nearly 

 equal to last two segments of peraeon together, all segments com- 

 pletely fused without trace of sutures, but in $ the basal portion is 

 a little wider than the distal part, tapering very slightly to the 

 rounded, entire apex. 



First antenna scarcely reaching end of 2nd peduncular joint of 2nd 

 antenna, 1st joint very stout, as broad as long, 2nd joint \ width of, 

 and \ length of 1st joint, 3rd joint a little slenderer and shorter, 

 flagellum 1-joiuted, as long as 2nd peduncular joint, apex with 

 3 setae and 2 large sensory filaments. 



Second antenna reaching to end of 4th peraeon segment, first 2 

 joints short, subequal, 3rd joint equal to 1st and 2nd together, 4th 

 joint half as long as 3rd, 5th joint a trifle shorter than 4th, flagellum 

 a little shorter than 5th joint, 4-jointed in $ , 1st joint longest, 2nd- 

 4th subequal, 5th small and ending in a small curved claw-like 

 process, all joints with apical setae. 



Upper lip transverse, distal margin rounded. 



Lower lip, lobes short with rounded-truncate apices, inner angles 

 with stout setae. 



Mandibles stout, straight, cutting-edge and secondary cutting-edge 

 in both tridentate, apparently no spine-row, molar strong, reaching 

 to level of end of cutting-edge, palp absent. 



First maxilla, outer plate with 10 straight simple spines, inner 

 plate with 3 plumose setae. 



Second maxilla, outer and middle plates each with 4 setae. 



Maxilliped, 2nd joint short and stout, inner plate equal to 2nd 

 joint, apex truncate with a few plumose setae, 2 coupling-hooks in 

 middle of inner margin, 5th joint oval, equal to 2nd joint in length, 

 6th i length of 5th, 7th length of 6th, 4th-6th joints setose inter- 

 nally, epipod in 5 reaching base of 5th joint, rounded, broader than 

 long, backward projecting plate on 1st joint in ? very large. 



First peraeopod short, closing over the maxilliped, 2nd joint 

 longest, 5th and 6th subequal, rather longer than 4th, 7th short and 

 slender, equal to width of 6th joint, 4th-6th joints with thick fringe 

 of long serrulate setae on inner margin, 7th joint with a few 

 terminal setae. 



Peraeopods 2 to 4 similar but becoming successively longer, 2nd 



