8ft TT. XAKAGAWA. 



i ng on tlio <lor>;al a'^poct of tlio thorax when tlie carapace is taken off (Fig. 

 ITT, lY ami \). 'J'lioracic nppondagns are 8 pairs and all siniilai-ly formed. 

 ]*"acli of tliem is divided into two branches, of which the outer, exopodite, is 

 whip-like, has a longer nnmbcr of segments and is shorter than the inner, 

 endopodito. The latter is foliaceous and tippad with long branched hairs 

 and has three lobed branchial appendage attached to its bind margin (Fig. 

 VI). The abdomen consists of 8 segments ; the hind margin of its exposed 

 segments (except the last) are f;errfi,te (Fig. X) ; the first 6 segments have 

 paired appendages, of which the first four pairs are biramous and the two 

 following are simple unjointed processes (Fig. VII and VIII). The caudal 

 fork is alwaA's shorter than the preceding three segments put together, and 

 beset Avith short bnt strong spines on both the outer and inner sides. Beside 

 those spines, the inner side is furnished with long barbed haii's and one long 

 and two short spines also grow on the tip of the tail (Fig. TX). 



Fggs, amoiniting to 1H4 in one specimen, were found last December 

 between thoracic appendages and in one case were already hatched out. 



