244 CRUSTACEA. 



laterali leviter k-lobato, margine postero-laterali concavo, Icevi. Pedes 

 antici crassi, subceqtii, subtilissime' tomentosi, minute ttibercidati, digitis 

 brevibus, dentibus eorum contiguis et non hiantibus. Pedes 8 i>ostici 

 cequd tomentosi, posteriores paulo dorsales. 



Carapax narrow, very convex and subglobular, very minute tomen- 

 tose, anterior portion in part faint areolate; front emarginate; 

 antero-lateral margin very short four-lobed; postero-lateral margin 

 concave, smooth. Anterior feet stout, subequal, tomentose like the 

 carapax, minutely tuberculate, ringers short, their teeth contiguous 

 and not gaping. Posterior eight feet also tomentose, posterior pair 

 subdorsal. 



Plate 14, fig. 2 a, female, enlarged two diameters; b, under view of 

 front; c, hand. 



Tahiti or Upolu, Pacific Ocean. 



Length of carapax of female, 4'1 lines; breadth, 5'1 lines; ratio of 

 length to breadth, 1 : 1-24. The habit is that of a Pilumnus, and 

 still it is more like a narrow Zozymus, as the surface is convex in all 

 its sections. The frontal process reaching to the base of the outer 

 antennae is elongate, and the joint only reaches it, as seen in fig. 2 b. 

 The thumb of the hand is very short and stout ; the teeth form a 

 cutting edge raised considerably above the extremity of the finger, 

 and thus meets the dentate edge of the moveable finger when the two 

 are closed. The moveable finger has the upper side scabrous. At 

 the outer angle of the orbit below, there is an imperfect fissure, ap- 

 proaching that of a Panopaeus. 



ACTUMNUS OBESUS. 



Carapax maxime" convexus, suborbicrdaris, antici leviter areolatus, areolis 

 planis, granulosis, 2 M non siibdivisd, granulis nudis, interstitiis et 

 sulcis subtilissime' velutinis ; f route pauhdo producto, emarginato ; 

 margine antero-laterali arcuato, fere integro, levissime k-lobato. lobis 

 minute denticulate; margine postero-lateral i valde concavo. Pedes 

 antici crassi, manu acie supra instructd, valde granulosd, granulis vix 



