GRAPSOIDEA. 353 



a little on the outer side; it is truncate or excavate at top. The 

 lower margin of the epistome sometimes projects more forward than 

 the front, so as to be seen in a vertical view. The base of the outer 

 antennae is separated from the orbit by a triangular process, usually 

 broader than high. Orbits open at the outer side. Tarsi unarmed. 

 A small tooth at the apex of the third joint of the eight posterior legs. 

 Basal part of abdomen not as broad as the corresponding part of 

 sternum. 



CHASMAGNATHUS SUBQUADRATUS. 



Carapax convexus, Icevis, postice paulo punctatus, paulo areolatus, fronte 

 margineque antero-laterali uti in C. granulate, lateribus parce arcuatis, 

 areold prcemediand anticd vix circumscripta. Maxillipedes externi 

 sternigue pars proximo, brevissime* Tiirsuti. Pedes antici posticique 

 plerumque uti in C. laevi, manu non gramdatd, minutd punctatd. 

 Regio pterygostomiana breviter reticulata. Articulus pedis 2di 5tus 

 infra non tomentosus, supra anticeque tomentosus. Abdomen lateribus 

 excavatum, basi latius, longius ciliatum. 



Carapax convex, smooth, somewhat punctate posteriorly, a little areo- 

 late, front and antero-lateral margin as in the loevis, sides but slightly 

 arcuate, praemedial areolet hardly distinct before or elsewhere. 

 Posterior part of outer maxillipeds, and adjoining part of sternum 

 very short hirsute. Feet nearly as in the Icevis, hand not granu- 

 late, minute punctate. Pterygostomian region very short reticulate. 

 Fifth joint of second feet tomentose above and on anterior surface, 

 but not below. Abdomen broader than usual at base and longer 

 ciliate, sides excavate. 



. Plate 23, fig. 5 a, outer maxillipeds, enlarged two diameters ; b, 

 hand, natural size ; c, abdomen, natural size. 



New South Wales? New Zealand? 



Length of carapax of male, eight lines ; breadth, nine and one- 

 fourth lines ; length of front between the eyes, four lines. The sur- 

 face depressions are nearly as in the Icevis. The third joint of the 



