The Sympoda. 173 



any sign of lenses, its first antennae have a geniculate bulb at the 

 base, in the second perteopods the seventh joint is longer than the 

 fifth and sixth joints combined, and the fifth peraaopod, so far as can 

 be judged from figures of the other species, is more slenderly built, 

 with the second and fifth joints more elongate. 



The female of the present species is at present unknown. The 

 carapace of the male is somewhat compressed, narrowly oval, in 

 dorsal view having what may be called a high-shouldered appear- 

 ance. The pseudorostral lobes are somewhat upturned, meeting 

 for a short distance in advance of the narrowly oval, slightly pro- 

 minent eyeless eyelobe, and in lateral view showing a very shallow 

 sinus. On the front part of the carapace are various pimples, one 

 pair of marked importance, but all difficult GO observe except by 

 turning the opaque white carapace at different angles to the light. 

 When the carapace is divested of its contents the pattern on it of 

 pellucid spots comes clearly into view. The first pedigerous seg- 

 ment is almost concealed by the carapace, but the other four are 

 distinct, with lateral ridges which are continued along the pleon. 

 This is much shorter than the preceding part of the body, its last 

 three segments together not much longer than the peduncle of the 

 uropods. 



Both mandibles have the principal cutting-plate divided into six 

 teeth. The first maxilla shows ten spines on the outer plate and four 

 on the inner, the palp is long, ending in a single seta. The second 

 maxilla has four slender spines on its single plate. The first maxilli- 

 peds have the little terminal joint almost obsolete ; the branchial 

 epipod with a great number of leaflets. The terminal joint of the 

 second maxillipeds appears to be bifid, as in the Norwegian C. glaber, 

 not tritid as in the Mediterranean form. The figures will show the 

 likeness of the third maxilliped and the first peraaopad to those of 

 C. glaber. The second peraaopod has the seventh joint longer than 

 the fifth and sixth joints combined and has four short setae on each 

 margin ; the third and the shorter fourth perteopods have the second 

 joint narrowed at the apex. 



The peduncle of the uropod is about once and three-quarters the 

 length of the endopod and twice as long as the exopod, with eight 

 setae on its inner margin ; the endopod has nine spines on the inner 

 margin and a long apical spine ; the exopod has a still longer apical 

 spine, but for most of its length is unarmed. 



Length of specimen about 4'3 mm. 



Locality. Cape Natal N. by E. 24 miles ; depth 805 m. ; No. 

 12605, sent by Dr. Peringuey, 



