PHYLLOPOD CKASTACEA OF JAPAX. 17 



Ejj^diteeii paii's of legs, the tii'sfc two of which (i^'i;.;'. o) heing ti-aiisfonjiecl 

 into the grasping organ pecuher to the males of the genus, and provided also 

 with a sucking disc like all the other old continent species in which the njales 

 are known to exist. These legs differ froni those of L. Stanleyana in the 

 larger size of the sixth endite and the branchia, and the smallei" si/e of the 

 upper end of the Habellum. The third leg is like that of the sydney species 

 with very large palpiforin appendage of the fifth endite, but the size of the 

 branchia and the upper end of the Habellum are siiuilar as in the two first 

 legs. This palpiforni appendage of the fifth endite is, as Clans observed in 

 L. Stanleyana, not to be found in succeedijjg pairs of legs. The last leg 

 is w^ell developed possessing five endites, the fiabelluni and the branchia, of 

 which the first endite and the fiabellum being the largest. 



The post abdomen (Fig. "J) with nearly fourteen si:>ines of unequal size 

 on its dorsal concave ed^e, the first of wiiich beinf^' about half as long as the 

 caudal spine which is but slightly curved on its dorsal side, differing thus 

 from the same s|)ine of L. Stanleyana and of L. africana,* in both of which it 

 is more curved. The two feathered setae situated on the conical prominence 

 arises bet\\'een the second and the third spines, their length being a little less 

 than that of the post-abdomen. The caudal appendage nearly straight, its 

 terminal portion slightly bent upwarns, and beset with al>out fifteen feathered 

 seta; on its basal half of the dorsal side. At a short distance in front of the 

 last seta^! (three-seventh from the base) is placed a small sharp spine with one 

 or two blunt teeth on its dorsal side. A row of fine teeth is again seen on 

 the dorsal side of the caudal apjjendage posterior to this spine. These and 

 the spine appear also to be absent in either of the above named species, the 

 serrations near the tip like the present species is mentioned, however, by 

 Packard in his Eulimnadia Agassizii. 



The antero-posterior diameter of the carapace is about (3 mm. ; the dorso- 

 ventral, 3.5 mm. ; and the dextro-sinistral 1.5 mm. 



Female (Fig. 2) : — The dorso-ventral and the dextro-sinistral dia- 

 meters relatively longer than in the male. The dorsum strongly carved 



* F. BiMuor : Btiitv;ii>'o zur Keuutnis.s tier Phyllopoileu. SepiiiMt-Aljdi'uck aus doui LXXV" 

 Baudu del- tiilzb. dcr k. Akad. dor Wibbcnscli. I. A'jLh. Mai-iiof I ; Jalll^^ 1877. 



