18 C. ISHIKAWA, 



Mid lateral view of the sshfll approaching nu)Vo tliat of L. afn'caiia, but 

 slo[)iii<;- regularly t(; tlie anterior end. Tlie eoloui' of the shell and the body 

 jmle ocher, legs, iiiaiidiblc^s and antciuue deept;r coloured, approaching to 

 light orang(!. The liver-lobes and the legion ol' the body around the anterior 

 half of the intestinal tract, of hi-ight orange. Th-- shape and the colour ui 

 the compound and of the median e}es similar to those of the male, the lower 

 angle of the head where the median eye is situated, is Iiowever less produced. 

 The first antenna' much smaller than in the ujale, being shorter than 

 the basal portion of the second antenuie, tind provided with only about five 

 lobes with fewer number of olfactory hairs. 



Ji^ighteen pairs of legs as in the male. The first leg with well developed 

 six endites, the sixth l)eing nearly half as large as the fifth. The two 

 terminal hooks of the first endite provided ^^ ith nine or ten teeth. The 

 iiabellum suiall, especially its upper end ; the branchia is a little shorter than 

 tlie flabellum, but much broader than it ; Jio palpiform appendage is to be 

 observed on the lifth endite. h\ the following legs the branchia and the 

 sixth endite become gradually larger till to the eighth, whence they again 

 decrease in size, but the flabellum and the iirst endite remain of relatively 

 large size till to the last. The upper entls of tiie Habella of the ninth and the 

 teiitli legs ai'c j)i'(jduced to fornj the oviger as is usual in the females of this 

 genus. Jn the eighteenth leg ih'ig. y}, all the endites and exites are still 

 recogjjisabli', the first endite with two hooks, three feathered seta' and an 

 unfeathered one ; the second eiidite Avith two feathered and a single unfea- 

 thered stta' ; the third with a feathered and an unfeathered one ; the fourth 

 with a single feathered, and the sixth without any seta". The flabellum of 

 this appendage is provided with eight feathered seta;, of which one is placed 

 on its inner side, three at its lower end, while the two of the remaining four 

 are directed upwards, showing thus the trace of the upper end of the 

 flabellum. The branchia is torelably of large size. 



The post abdomen and the abdominal appendages nearly of the same 

 shnpe as in those of the male, but the caudal spine straight. 



The antero-posterior diameter of the carapace is about 5 mm. ; the 

 dorso ventral, ^j.-j mm. ; and tlie dextro-sinistral, 1.5 mm. 



