
406 RECORDS OF THE S.A. MUSEUM 
Second peraeopod with the wide basis longer than rest. of limb and with 
margins more or less serrate, and with plumose setae as shown, one seta long; 
merus wide, together with the short. but distinct ischium as long as carpus, pro- 
podus and dactylus together, with dentate margins and with.a long distal plumose 
seta; carpus a little shorter than propodus which is almost as long as dactylus, 
Third to fifth peraeopods stout; merus of third and fourth about three-fourths 
as long as carpus and propodus together, in fifth leg equal in length to these 
joints combined; carpus with a stout inner distal seta reaching level of tip of 
dactylus, preceded by three more slender setae, the longest of which extends well 
beyond apex of dactylus. 

Fig, 34, Gynodiastylie ornata, type male and paratype female; ant, mxp, and prp., first 
antenna, third mazilliped, and first and second peraeopods (% 50); urop., uropod with fifth and 
sixth pleon somites, and telson (x 50; spine and distal end of telaon, X 250). 
Uropod with peduncle one-third as long again as telson and with three inner 
setae near distal end; rami subequal in length, each more than two-thirds the 
length of peduncle; endopod composed of two joints of equal length, and with 
three and four inner spines; terminal spine more than half as long as ramus, 
flanked on outer side by a bristle; exopod with two or three short spines on outer 
margin and with two terminal spines, one less than half as long as the other, 
which is more than two-thirds as long as the ramus, 
Colour white. Length 3:8 mm. 
Adult male, The differences in the shape of the carapace and in the pedi- 
gerous somites are shown in the figures, Although the sculpture is.on the whole 
more clearly defined, the dorso-lateral ridge is not serrate (feebly erenulate) ; the 
depression in posterior half of back has a central median trough margined by a 
carina on each side, while the low longitudinal elevation on and behind frontal 
