148 



T. FUKUDA. 



The length of the telson, measured on the median line, is a little 

 more than 1/6 the total length, the maximum "breadth being about 

 2/5 the length. The median crest is low and broad with a short 

 terminal spine. The postero-lateral margin is armed with eight thicken- 

 ed spines or lobes, which are covered with minute perforations and 

 have each a short jointed spinule at the extremity. The median notch 

 is beset with minute spinules along its lateral borders. The whole 

 dorsal surface of the telson, except on the median crest and the 

 marginal spines, is covered with irregularly shaped granules, similar to 

 those on preceding segments, The basal segment of the uropod bears 

 a curved acute spine at the posterior extremity. Of the two prolonga- 

 tions, the inner one is much longer and broader than the other. The 

 two segments of the exopodite are about equal in length. There are 

 eleven marginal spines on the proximal segment, of which the last 

 two or three terminate bluntly. The surface of the distal segment 

 bears a strongly defined elevation and depression. The endopodite is 

 comparatively large and its surface is irregularly sculptured. 



The eyes are directed obliguely forward ; the corneal region is 

 nearly globular and without constriction, its axis making an acute 

 angle with that of the peduncle on the inner side of the latter 

 The ophthalmic segment is entirely covered by the rostrum. The 

 antennules have broad and flattened basal segment. The carpus of 

 the raptorial limb bears two acuminate spines on its anterior surface. 

 The inner margin of the manus is provided with a row of ten (left) or 

 eleven (right) acute jointed spines besides the usual serration ; more- 

 over, there are two long movable spines at the base. The dactylus 

 bears ten long curved teeth, the terminal one being much longer and 

 more strongly curved than the others. 



All appendages of the exposed thoracic segments are styliform 

 with the distal parts somewhat flattened. 



The genital openings of the female presents a somewhat charac- 

 teristic appearance as shown in fig. 4 a. 



