Crustacean Fauna of South Africa. 241 



subequal to peduncle, ca. 17- jointed, accessory flagellum a trifle longer 

 than 1st flagellar joint, 3-jointed, 2nd longer than 1st, 3rd minute. 



Second antenna subequal to 1st antenna, ultimate and penultimate 

 joints subequal, flagellum about as long as peduncle, ca. 21-jointed. 



Upper lip broader than long, distal margin convex, entire. 



Lower lip, inner lobes large, mandibular process narrow, subacute. 



Mandible, cutting-edge tridentate, each of the teeth more or less 

 bifid, secondary cutting-edge bideutate, one or both the teeth bifid, 

 spine-row with 7 spines in the left, 10 in the right, molar rounded, 

 denticulate, palp nearly twice length of trunk, 3rd joint shorter than 

 2nd, wider distally than proximally, 2nd with a few setae, 3rd with 

 numerous setae on apex. 



First maxilla, inner plate with 2 unequal apical setae, outer plate 

 with 10 spines. 



Second maxilla, inner plate shorter and narrower than outer, apices 

 of both rounded. 



Maxilliped, inner plate with 3 spines on distal margin, outer plate 

 extending f along 2nd joint of palp, 4th joint of palp ending in a 

 spine nearly as long as itself. 



First guathopod, in <$ 2nd joint rhoniboidal, very broad, inferior 

 margin with 5 transverse rows (including the apical one) of very long 

 setae, 3rd joint more than twice as broad as long, 4th apically acute, 

 5th a little longer and broader than 2nd, ovoid, inferior margin with 

 groups of setae, 6th not as long and not quite so broad as 5th, palm 

 transverse, straight, crenulate, inferior margin convex, crenulate and 

 ending in a blunt, lobe-like projection, finger reaching a good way 

 beyond this lobe, inner margin denticulate ; in $ 2nd joint linear, 4th 

 apically truncate, 5th equal to 2nd, obovate, strongly setose, 6th a 

 little smaller than 5th, ovate, palm and inferior margin forming an 

 even and strongly convex curve, the palm very minutely denticulate 

 and defined by a stout spine set just within the margin, finger over- 

 lapping palm, inner margin denticulate. 



Second gnathopod, in $ almost as large as first gnathopod, 2nd 

 joint exceedingly large, width near base almost equal to length, non- 

 setose, 4th with inferior apex ending in a blunt tooth, beyond which 

 the apical margin is produced on the inside into a more prominent 

 tooth, 5th as long as but not nearly as wide as 2nd, inferior margin 

 setose, 6th shorter and narrower than 5th, inferior margin concave, 

 setose, ending in a long, stout, subacute tooth, denticulate 011 its inner 

 side, palm very short, transverse, with a short, stout, blunt spine at 

 the base of the large tooth, finer much overlapping, inner margin 

 denticulate ; in ? similar to first guathopod. but rather longer, 5th 



