254 Annals of the South African Museum. 
specific character except in conjunction with other and constant 
characters. Chevreux in 1900 described it in vaillantii as about equal 
to the 2 last peduncular joints, at least 25-jointed ; Walker says that 
in intermedia it equals the last peduncular joimt and is 9-jointed. 
The South African specimens form a link between these two varieties, 
the flagellum being equal to the last peduncular joint and 20-jointed. 
The following details refer to the South African specimens : 
First and second antennae about equal in length. 
First maxilla, inner plate with 3-4 setae. 
Second maxilla, outer plate wider than inner, widest at distal 
truncate end. 
Maxilliped, outer plate with trifid spines along inner margin. 
First gnathopod, lobe on apex of 2nd joint very prominent, crenulate 
and setose, 6th jomt longer than 5th, tapering slightly distally, palm 
not defined from inferior margin except by a stout spine, finger 
strongly serrate; there is little difference in the two sexes, in the ¢ 
the limb is rather longer, 6th joint also proportionately longer. 
Inferior margin of the side-plate setulose. 
Second gnathopod; lobe on apex of 2nd joint very prominent, 
crenulate and setose, 5th and 6th oints in ¢ as in Chevreux’s figure 
of intermedia (1c. 1907, fig. 29) but defining tooth broad, almost lobe- 
like (see Walker, lc. 1904, p. 291, footnote, where a similar variety 
of the Ceylon form is mentioned), the outer margin straight, inner 
strongly convex; in 2 6th joint as in Walker’s figure (l.c. 1904), but 
palm rather more sinuous; finger in both sexes strongly serrate, 
inferior margin of side-plate setulose. 
Third uropod, peduncle with 4-5 stout spines on upper apical 
margin, inner ramus broader but shorter than outer, apex with 2-4 
spines and 4 setae, outer ramus with 2 strong recurved spines, upper 
margin very minutely scabrous. 
Telson obtusely triangular, with a few setae towards apex, distal 
margin convex between 2 small tubercles. 
Length: 6 75mm., 2? 9°5.mm. 
Colour : Claret or brownish green with a row of whitish irregular 
dorsal spots, one on each of peraeon segments 6 and 7 and pleon 
segments 1—-3,and a whitish spot in the antero-inferior angle of side- 
plates 1-5, flagellum and distal joints of peraeopods whitish, eyes 
similar to the ground colour. 
The markings correspond with those described by Chevreux for 
vaillantii (1c. 1910, p. 260). 
Locality: Buffel’s Bay (False Bay). 28/9/18. (K.H.B.) od, 
ovigerous ? 9 and young; Sea Point, near Cape Town. 15/11/13. 
