
HALE—AUSTRALIAN CUMACEA 131 
First pedigerous somite concealed; second to fifth each with sharp dorsal 
carina; inferior postero-lateral angles of fifth somite rounded like those of first 
four pleon somites. 
All pleon somites with sharp dorsal carina; somites one to five with well- 
developed articular processes; first to fourth and telsonic somite subequal in 
length ; fifth one-half as long again. 
Third maxillipeds with basis twice as long as rest of limb, with outer apical 
lobe extending forward to level of insertion of carpus; merus with outer apical 
lobe extending to a little beyond external apical angle of carpus; ischium a little 
shorter than carpus and slightly longer than propodus, which is one-half as long 
as merus. 

V 
Fig. 50. Cyclaspis simula, type male; A, third maxilliped; B, C and D, first, second and 
fifth peracopods; C, terminal joints of second peraecopod; EK, telsonie somite and uropod, (A to B, 
= 60; Cl, & 86). 
First peraeopods only about as long as carapace; basis with a long plumose 
seta at external apical angle and more than one-fourth as long again as the re- 
mainder of limb, the segments of which are stout; ischium little more than half as 
long as merus, which is eqnal in length to dactylus and shorter than propodus, 
which is shorter than carpus. 
Second peraeopods with basis as long as rest of limb; ischinm and propodus 
short ; merus and carpus much longer and subequal in length; merus with an apical 
spine and carpus with three, all unusually short; dactylus stout. with three ter- 
minal spines, the middle very much longer than the others. Third to fifth peraeo- 
pods as in fig. 3, B; one short plumose seta on basis, and one unusually short seta 
on propodus; no other armature. 
Pedunele of uropods about one-fourth as long again as telsonie somite; rami 
equal in length, three-fourths as long as peduncle, rather broad, apically simple 
and acute, inner edges coarsely serrate, 
Colour milk white, without any dark pigment. 
Length 3-9 mm, 
