220 CRUSTACEA. 



Keefs of Upolu, Saraoan Group, Pacific ; also Balabac Passage, north 

 of Borneo. 



Length of carapax of a male, two and a half lines ; greatest breadth, 

 four lines ; ratio of length to breadth, 1 : 1-6. The obsolescence of 

 tooth E reduces the number to four, of which the posterior three are 

 equally prominent. The tubercles of the larger hand are either 

 neatly rounded or subacute and conical ; those of the carpus are partly 

 lengthened into cones, or are verging towards spiniform tubercles. 

 The prominence at the apex of the arm which covers the articulating 

 process of the following joint bears one or two spines, which is not 

 true of the nitidus. The hairs or setae of the posterior legs are naked 

 at base, but through all their length except the lower fourth, it is en- 

 larged and is densely setulose, as shown in figure f. The female has 

 a few setae like those of the posterior legs on the carapax, one or two 

 being situated at a point in the anterior margin of several of the 

 areolets, as 1 M, 2 M, 4 L, 5 L in two points, 4 M also, at a point either 

 side of 3 M. The third, fourth, fifth, and last joints of the posterior 

 legs are spinulous. Surface of carapax under a microscope, granulous, 

 and anterior edges of frontal areolets fine crenulate, owing to granula- 

 tions. 



PlLODIUS SCABRICULUS. 



Carapax, fronte latus, anticd leviter areolatus, paulo scabriculus, areolis 

 I L, 3 L, 4 L subacutis et scabriculis, margine antero-laterali fere 

 longitudinali, k-dentato (dente E fere obsolete), dentibus tribus (NT 

 S} acutis, spinif&rmibus. Pedes antici fere cequi, manu carpoque 

 subtilissime tuberculatis, tuberculis partim seriatis, digitis canalicu- 

 latis, paulo scabriculis, articulo tertio anticd denticulate. Pedes postici 

 sparsim pubescentes, articulo tertio supra minutd spimdoso, tarso longo. 



Carapax with a broad front, anteriorly faint areolate, a little scabrous, 

 areolets 1 L, 3 L, 4 L subacute and minute scabrous, antero-lateral 

 margin nearly longitudinal, four-toothed, tooth E nearly obsolete, 

 teeth three (N, T, S) acute, spiniform. Anterior feet nearly equal, 

 hand and carpus very minutely tuberculate and in part seriately 

 so, fingers channeled, minute scabrous, third joint anteriorly den- 



