308 



Chelipedes equal, half as long as the body, directed straight 

 foreward. Meropodite feeble, 4 times as long as its outer surface 

 is wide, quite unarraed. Carpus short, cyathiform, auteriorly 

 emarginate at either side, outer angle of anterior margin of upper 

 surface terminating in an acute spine, inner angle obtuse. Chela 

 slender, altogether iuverted, the dactylus situated inferiorly and 

 the plane of the fingers parallel with the sagittal plane of the 

 body. Chelae 5,9 mm. long, fingers strongly compressed, much 

 shorter than the palm, proportion between the length of the 

 palm and that of the fingers as l : 0,55. Palm cylindrical, the 

 lower (upper) border presents a rather broad though shallow 

 groove running from the carpal articulation about to the middle, 

 no transverse groove near the articulation of the dactylus. Immo- 

 bile finger with an oblong groove beyond the middle, as in 

 Amphibetaeus, a rounded promiueuce of the dactylus fitting into 

 that groove; between this groove respectively this prominence 

 and the articulation, the immobile finger bears 6, the dactylus 4 

 small, conical teeth. First segment of carpus of 2nd legs 1 ,3 times 

 as long as the sura of the four folio wiug, very slender, 8,6 times 

 as long as thick distally; 2nd and 4th segments equal, each of 

 them one sixth the Ist., 3rd a little shorter, 5th oue and a half 

 as long as the 4th. Three posterior legs very slender, as in A. 

 trispinosus, dactylus siuiple, '/g of the propodite. 



Length of the only specimen coUected 16 mm. 



22. Alpheopsis? Euryone, n. sp. 



Station 129. Anchorage off Kawio- and Kamboling-islands, 

 Karkarolong-group. Reef. 



Frontal margin as in Alpheopsis aequalis Cout., but the rostrum, 

 that does not yet reach to the middle of the visible part of basal 

 antennular article, a little wider than long; ophthalmopods widely 

 accessible from before. Antennal region as in A. aequalis var. 

 truncatus (Coutière, Alpheidae Mald. and Laccad. Archip. 1905, 

 p. 869, Fig. 139), but the stylocerite reaching to the middle of 

 median antennular article or hardly beyond it and with the terminal 



