NOTES ON JAPANESE SCIIIZOPODA. 



?55 



vulgaris, though with more oval-shaped lateral lobes. Antennular 

 peduncle strong, its middle joint with 3 spines above (fig. 7). Outer 

 flagellimi of antennule swollen at base in both sexes, more distinctly so 

 in male than in female. Antennal scale obliquely truncate at tip, 

 which reaches beyond outer spine of the scale. Labrum pointed 

 anteriorly, its anterior margin armed with 4 spines on each side of a 

 median projection. Legs stout; propoditc segmented into 8-15 joints, 

 that of last leg with most numerous joints ; meropodite of all legs 

 very strong and longer than carpopodite ; dactylopoditc invisible (fig. 

 20). First plcopod in male with broad basal joint armed with long 

 plumose spines along one side ; outer branch of all pleopods normal 

 and multiarticulated ; third pleopod very long and with outer 

 branch segmented into four joints ; inner branch of second and third 

 pleopods normal and multiarticulated ; that of first, fourth and fifth 

 pleopods rudimentary and one-jointcd. Telson gently tapering to apex, 

 three times as long as broad at base ; lateral margin armed with 14 

 spines, the last of these being remarkably strong. Both branches of 

 uropod longer than telson ; ventral inner margin of inner branch armed 

 with 10 strong spines ; otolith small ; outer branch armed with 19-20 

 strong spines along outer margin. Body length 11 mm. in average. 

 Locality. Kojima Bay in Inland Sea. 



Notes. — This species differs from G. vulgaris in the rostrum being more distinct and 

 in the telson being more spiny. 



Rhopalophthalmus Hansen, iyio. 

 10. Mhopaloiihthalmus egr egius Hansen. 



Plate VIII., fig. 12, 22. 



Carapace not covering four posterior thoracic segments ; its anterior 

 margin rounded, with a pair of pointed process instead of being 

 augulatcd as given by Hansen. Antennal scale reaching to tip of 

 antennular peduncle, about five times as long as broad (fig. 12). The 



