
400 RECORDS OF THE S.A, MUSEUM 
spine-like projections at distal end; third joint partly concealed by the afore- 
mentioned spines; flagellum short, tavo-segmentate, the accessory lash about. half 
its length and apparently three-jointed. Second antenna three-jointed. 
Mandible with about thirteen spines in the row. 
Third maxilliped with basis robust, more than half as long as remaining 
joints together, the distal half of inner margin, like inner edges of ischium, merus 
and carpus, with closed serrations. 
First peraeopod with distal portion missing. 

Fig. 30. Gynodiastylie mutabilis, types fomale and male; lateral view and cephalothorax 
from above (* 30), 
Second peraeopod with exopod as long as the wide basis, which is considerably 
longer than the slender remaining joints together; ischium short but distinct; 
carpus a little longer than either merus or propodus, the latter barely more than 
half as long as dactylus, 
Third and fourth peraeopods with basis about two-thirds as long as rest of 
limb, and merus not a great deal longer than combined length of carpus and pro- 
podus; carpus with last distal seta stouter and shorter than penultimate and, like 
stout propodal seta, reaching to about level of apex of the claw-like dactylus, Fifth 
peraeopod a little shorter than fourth and almost as long as seeond, 
Peduncle of uropod unarmed, barely longer than telson, and equal in length 
to exopod, which is not quite as long as the single-jointed endopod; the last-named 
bears seven spines on inner margin and two unequal terminal spines, the longer 
less than half length of ramus, and subequal in length to the longer of the apical 
spines of exopod. 
Length 3 mim, 
