CETTSTACEA OF THE MEEQtJI ARCHIPELAGO. 51 



under surface of the internal lobe of the inferior orbital margin 

 is, however, somewhat granular, and the posterior end of the 

 subhepatic region, which is situated below the two last antero- 

 lateral teeth, is also slightly granular. The anterior part of the 

 subhepatic regions and the pterygostomian regions are glabrous, 

 but the posterior half of the inflected sides of the cephalothorax 

 are a little hairy. The endostome is distinctly longitudinally 

 ridged on each side. 



The specimen has unfortunately lost its larger chelipede, so 

 that I can only describe the smaller one, the left. The arm 

 is almost wholly covered by the cephalothorax, and its outer 

 surface is smooth, the upper margin being a little hairy. The 

 convex upper surface of the wrist is covered with some pearl- 

 sliaped granules, which are similar to those of the anterior part 

 of the upper surface of the carapace. The distal end of the 

 internal margin of the wrist is somewhat dentiform, and the 

 internal surface of this joint is smooth. 



The outer surface of the palm, as well as its upper and under 

 margin, is covered with, numerous, small, scarcely acute granules 

 which are arranged irregularly, but the convex inner surface of 

 the palm is smooth. The brownish-coloured fingers are a little 

 shorter than the palm. They have pointed, crossing tips. The 

 inner edges meet along their whole length ; the inner edge 

 of the immobile finger is distinctly crenulate, but the same edge 

 of the mobile finger appears entire and is only very minutely 

 crenulate. The outer surface of the immobile finger is longi- 

 tudinally grooved and slightly granular; the mobile finger is also 

 longitudinally sulcate on its upper margin and outer surface, 

 and covered with granules between the grooves, the granules 

 decreasing gradually in size towards the pointed tip. 



The ambulatory legs are short, and, when compared with 

 those of other species of this genus, tolerably slender. Their 

 outer surface is smooth, but the upper margin of the joints, 

 especially of the carpopodites and propodites,is minutely granular, 

 and all the joints are slightly hairy along their upper and under 

 margins. The dactylopodites are scarcely longer than the pro- 

 podites, and terminate in rather long, acute, scarcely arcuate, 

 corneous tips. 



4* 



