nAA CRUSTACEA. 



244 



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

 antiei crassi, subceqid, subtilissi?ni tomentosi, minute Jubercidati, digitis 

 brevibus dentibus eorum contigids et non Idantibus. Pedes 8 postici 

 ceque tomentosi, posteriores paulo dorsales. 



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

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

 anterolateral margin very short four-lobed; posterolateral margin 

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

 carapax, minutely tuberculate, fingers 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 : T24. 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 

 antennse 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 edi>;e of the moveable finger when the two 

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

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

 proaching that of a Pauopoeus. 



ACTUMNUS OHESUS. 



Carapax maxirne convexus, svhorbicularis, antwi lev iter areolahw, areolis 

 plants, granulosis, 2 M non subdivwd, granulis nudU, inkrstitm et 



suleis subtilissime velutinis; /route pauhdo prod ado, nnarginato ; 

 margine aider o-lateraU arcuato, fere integro, hvissime i-hoato, Joins 

 minute denticidatis ; margine postero-laterali rulde concavo. Pedes 

 antiei crassi, mauu acie supra instructd, valde granulosa, granulis vix 



