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 Ist, 3rd minute. 
Second antenna subequal to Ist 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 bidentate, 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 joit 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 3 along 2nd joint of palp, 4th joint of palp ending in a 
spine nearly as long as itself. 
First gnathopod, in ¢ 2nd joint rhomboidal, 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 2 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 on its inner 
side, palm very short, transverse, with a short, stout, blunt spine at 
the base of the large tooth, fincer much overlapping, inner margin 
denticulate; in 9 similar to first gnathopod, but rather longer, 5th 
