PiaTE XVII. 
Dynomene platyarthrodes, n. sp. 
n.s. Dorsal view of female, natural size. 
OC., a.S., a.l., mxp. 3. Wentral view of head, showing the rostrum, epistome, 
eyes, first and second antennae, and one of the third maxillipeds ; 
flagella of second antennae omitted. 
f.s. Sternal sulci of the female between the bases of the first four peraeopods ; 
the genital openings seen on the bases of the third peraeopods. 
Pl. D. Dorsal view of the last three segments of the pleon. 
T.V., urp. Ventral view of telson and uropods. 
mxp. 2, mxp. 3. Second and third maxillipeds. 
prp. 1, 3, 4, E. and I. First peraeopod or cheliped, and third and fourth 
peraeopods, each viewed from the exterior surface (E.), and from 
the adpressed surface (I.). 
prp. 5. Fifth peraeopod, seen from the outer surface, as lying on the back 
of the carapace. 
urp. Uropod or platelet of sixth pleon segment, ventral view, greatly mag- 
nified. 
