Crustacean Fauna of South Africa. 259 
First gnathopod ¢, 2nd joint not apically lobed, inferior margin of 
Ath and 5th subequal, anterior margin of 5th as long as 6th, 6th ovate, 
palm oblique, straight, slightly concave near the blunt defining angle 
which bears a spine, irregularly dentate, hind margin crenulate, both 
with long setae, finger slightly overlapping palm, inner margin serru- 
late; in ? similar to ¢ but not so large, and palm a little more 
convex. 
Second gnathopod ¢, 2nd joint not or only very slightly lobed on 
front apex, 4th bluntly pointed, setose, inferior margin of 5th equal to 
that of 4th, straight, finely crenulate, 6th longer than 5th, ovate, palm 
oblique, concave, defining angle not produced, blunt, with a spine in 
immature specimens but apparently without in adults, anterior and 
hind margins of 5th and 6th densely fringed with very long plumose 
setae in the adult, much less setose in immature specimens, finger 
stout, tip closing on to surface of defining angle, inner margin serrate ; 
in ? similar to ¢ but smaller, inferior margin of 5th not as long as 
that of 4th, palm more sinuous, 7.e. convex near hinge, concave only 
near defining angle, 5th and 6th joints without the fringe of long 
plumose setae, being only sparsely clothed with simple setae which 
are most numerous on the inferior margin of the 5th. 
First and second peraeopods, 2nd joint not expanded, similar to 
those of Amphithoe rubricata (Mont.). 
Third peraeopod, 2nd joint not quite as broad as long, hind margin 
smooth, anterior margin of 6th with 6 stout spines increasing in 
length distally. 
Fourth and fifth paraepods, 2nd joint half as long again as broad, 
hind margin smooth, anterior margin of 6th with 6 stout spines, 
increasing in length distally. 
First and second uropods, rami shorter than peduncle, outer a trifle 
shorter than inner, both with 4-6 marginal spines, peduncle of Ist 
uropod with 1 very strong apical spine. 
Third uropod, peduncle with ca. 10 very stout blunt spines on upper 
apical margin, rami shorter than peduncle, inner with ca. 6 stout 
spines on distal half of upper surface, apex with a group of setae, 
outer ramus with 2 stout, blunt spines in middle of upper outer 
margin followed by several setae, apex with 2 strong recurved 
spines. 
Length: g and ovigerous 2, 20 mm., one ovigerous 2? 25 mm. 
Colour: Brown or greyish, with lighter spots on back, rather 
irregularly arranged but usually one or two on posterior margin of 
each peraeon segment, flagella of both antennae and 6th and 7th 
joints of the peraeopods whitish, apex of 6th and 7th joints of Ist and 
. 
