101 



extremity of the posterior margin ; carpus stout, in the male 2,7- 

 times, in the female 2,8-times as long as thick, its posterior 

 margin with oue or two small spinules in the raiddle and vvith 

 an acute tooth at the extremity ; propodite 4-tira.es as long as 

 wide, longer than the carpus, the proportion being 1,42 in the 

 male, 1,43 in the female; dactylus one fourth the propodite, with 

 a small, accessory claw on the posterior margin. 



Fourth legs uearly as the 3rd, hut the meropodite unarmed. 



Eggs large, few in number. 



Length 10 m.m. 



3. Alpheus Eulimene, n. sp. 



Station 154. Lat. 0° 7'. 2 N., long. 130° 25'. 5 E. Depth 83 M. 



Closely related to A. Arethusa, but distinguished by the fol- 

 lowing. At each side of the rostrum, that is as short as in tbat 

 species, the frontal margin runs transversely ontward and, as in 

 A. superciliaris Cout., is separated by a distinct emargination from 

 the rounded orbital hoods. Posterior margin of the pleura of Ist 

 abdominal somite terminating in a spiniform, though obtuse process, 

 curved foreward, pleura of the following rounded, posterior margin 

 of 6th somite with an acute tooth at the outer angles, as in 

 A. Arethusa, but presenting uo tracé of the median tooth. Telson 

 as in A. Arethusa, but the anterior pair of spinules twice as far 

 distant from the posterior margin as from the anterior, posterior 

 pair almost one and a half as far distant from the posterior 

 margin as from the anterior pair. 



Autenual and antennular peduncles as in A. Arethusa, but the 

 scale of the scaphocerite even shorter than in A. styliceps, extendiug 

 ouly to the 2nd third part of the median antennular joint. 



Larger chela as in A. Arethusa, ovoid, almost 2,5-times as 

 long as high and almost as thick as high, but the fingers shorter, 

 the length of the dactylus being not yet one third the whole 

 length. Small chela as in A. styliceps, the length of the palm 

 being, however, in proportion to the length of the fingers as 

 10 : 13; palm one and a half as long as high. 



