308 BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



Maxillipeds with the second, third, and fourth articles of the palp 

 produced into lobes. 



Branches of the uropoda unlike in the male, the outer branch being 

 incapable of folding under the inner branch; only the outer branch 

 salient. 



In the opinion of Dr. H. F. Moore and Prof. S. J. Holmes the 

 males and females are unlike, the female being similar to the female 

 of the genus Dynariiene. 



All the species which I have referred to this genus are without the 

 long median spine or process of the first al)donunal segment charac- 

 teristic of the type species, C. latreiUl Leach. The species of this 

 genus described b}^ Haswell^' and Miers^ also have the long spine. 

 Haswell figures one specimen, which he supposes to be the female of 

 C. spinulosa or of C. hystrix^ which lacks the dorsal spine on the first 

 abdominal segment, ])ut in which the ui'opoda are similar to those of 

 the male. 



Miers saj^s that the females of Oilicxa latreilli differ from the male 

 in lacking the spine on the first segment of the abdomen and in hav- 

 ing the uropoda with the inner branch produced and the outer branch 

 short, resembling the uropoda of Cymodoce. 



Milne Edwards' places Clllccta caudata (Say) in the section of the 

 genus Xct'sa^ corresponding to Gil'wma Leach. It may be that a new 

 genus will be required for these forms which lack the spine on the 

 fii'st abdominal segment, but until moi'e is known about the sexes I 

 shall, for the present, not remove them from the genus (Jlllca^a. where 

 I originally placed them. . 



Whitelegge'' refers to the genus Oilica'a several species in which 

 the male has the first abdominal segment not produced in a long 

 process. 



ANALYTICAL KEY TO THE SPECIES OF THE GENUS CILIC.EA. 



a. Surface of body densely granulated. 



h. Terminal sinus of last abilominal segment without tooth on either side of the 



lateral angles of the sinus Ciliciva Unguicauda Richardson 



b^. Terminal sinus of last abdominal segment with a tooth on either side of the 



lateral angles of the sinus Cilicira granulosa Richardson 



a^. Surface of body not granulated. 



b. Terminal segment of abdomen with three sinuses in a longitudinal series, each 

 opening into the other, the two upper sinuses being heart-shaped. Outer 

 branch of uropoda armed with four spines or teeth, and e.xtending l)ut little 



beyond the tip of the abdomen CiUciea cordata Richardson 



y. Terminal segment of abdomen with one sinus. Outer branch of the uropoda 

 unarmed, and extending much beyond the tip of the abdomen. 



«Proc. Linn. Soc. New South Wales, VI, 1881, pp. 188-186. 

 ftZool. Collections of the Alert, 1884, pp. 308-310. 

 cHist. Nat. Crust., Ill, 1840, pp. 218-219. 

 tf Austral. Mus. Mem., IV, 1901, pp. 201-246. 



