113 



The epistome is well developed and not depressed. 



The anterior angles of the buccal frame are prominent, 

 and between them the margin is well defined and sinuate. 



The external maxillipeds are broad, completely closing 

 the buccal cavity. The ischium is considerably longer than 

 the merus, its articulation with it oblique, the merus is sub- 

 triangular, with its inner distal angle strongly truncated, the 

 margin being insinuate, the carpal joint is articulated near 

 the prominent outer angle ; the exopod does not quite reach 

 this angle. 



The pterygostomial region is rather tumid, with a coni- 

 cal, obliquely-compressed tubercle. 



The pleon of the female is very broad, covering the whole 

 of the sternum behind the maxillipeds, truncated distally with 

 a faint median-rounded ridge between two furrows, composed 

 of six segments, the three more proximal ones much shorter 

 than the others. 



The male pleon is small and narrow, the sides contract- 

 ing halfway to the apex, of five segments, the basal joint 

 occupying not quite the whole width of the sternum between 

 the last pair of legs. 



The chelipeds in the female are slender, the merus cylin- 

 drical, expanding distally with a sub-acute prominence at 

 the distal end on the outer side ; the hand is tumid in the 

 middle, giving a rather spindle-shape, viewed from above. The 

 fingers are as long as the palm, curved inwards, and slightly 

 twisted distally, with their outer margins minutely toothed, 

 meeting only at their tips; from this margin the inner sur- 

 face of each is much excavated. In the male the chelipeds are 

 more robust, the hand is scarcely spindle-shaped, the fingers 

 are more robust, and a good deal shorter than the palm. 



The ambulatory legs are moderately long, the meri cylin- 

 drical, with distal, strong, sub-acute prominences above; the 

 propodi are compressed, about one and a half as long as the 

 carpi, which also have distal prominences, the dactyli are 

 about three-fourths the length of the propodi, much com- 

 pressed, a little constricted at their proximal ends, curved, 

 with the margins defined by a thickened line, with a ter- 

 minal, short, acute claw and two teeth near it, the inner- 

 most triangular and directed backwards; the inner margin 

 bears a fringe of soft hairs. 



A littoral species, S.A,, south coast. 



Breadth of carapace (male), 6 mm. 



Length of cheliped (male), 9 mm. 



Length first ambulatory leg, 12 mm. 



