
76 RECORDS OF THE S.A. MUSEUM 
Pleon (as noted) relatively small; with a distinct median carina, and with 
feeble dorso-lateral carinae on first to fifth somites; articular pegs small. 
First antennae stout and, for Cyclaspis, conspicuous; second and third seg- 
ments of pedunele subequal in length, together longer than the basal joint, and 
each about as long as the two-jointed flagellum ; the jointed terminal appendages 
are as long as last peduncular and flagellar segments together. 
First peraeopod short and stout, the propodus reaching level of antennal 
tooth; the robust basis is equal in length to the rest of the limb, with the inner 
apical angle produced and tooth-like, and with an unusually long plumose seta 
at external apical angle, reaching to distal end of earpus; propodus shorter than 
carpus (five-sixths as long) and one-fourth as long again as dactylus. 

D 
Fig. 5. Cyclaspis gibba, type female; A, first antenna; B, C and D, first, second and fourth 
peraeopods; EH, uropod (A and Cl, x 200; B to E, x 100). 
Second peraeopods with basis shorter than rest of limb; ischium with a 
plumose seta; merus shorter than carpus and propodus together, with a strong 
apical spine, and at opposite angle a plumose seta; carpus with three spines on 
distal margin; propodus (unarmed as usual) more than half as long as dactylus, 
which has at apex a spine longer than itself and two equal spines barely one- 
half its length. 
Fossorial legs with setae sparse and short (fig. 5, D), none reaching beyond 
tip of dactylus. 
Uropods stout; peduncle much longer than the rather short telsonic somite 
and as long as the rami, which are equal in length, wide, and tapering to simple, 
acute apices; exopod with eight plumose setae, on the proximal two-thirds of 
inner margin of second segment; endopod with most of inner margin serrate; the 
serrations are closed (confluent) on proximal half, but these are followed by five 
widely open incisions in each of which is seated a serrated, slightly sinuate spine. 
