CANCROIDEA. 235 



to these maxillipeds is very short fringed. Besides, the eight poste- 

 rior feet are somewhat hirsute below, and the penult joint is thinly 

 hirsute above, the hairs being mostly in scattered tufts. The fingers of 

 the hand also are much straighter, longer, and more slender, the lower 

 finger in planus being twice as long as broad at base, while in the in- 

 ornatus it is more than three times. 



Plate 13, fig. 8 a, b, represents a specimen from Charlotte's Island, 

 one of the Kingsmill Group, collected along the stony shores, April 

 24, 1841. The specimen was lost with the wreck of the Peacock, and 

 we cannot, therefore, verify the identity in all points. It agrees with 

 the inornatus in general form, and surface of the carapax, antero- 

 lateral and front margin, rugulous carpus, and in the posterior legs. 

 The form is hardly as broad, the hand more rugulous, and the denta- 

 tion different, the thumb wanting the largish teeth near apex. (This 

 last is a varying character for a species.) 



PSEUDOZIUS DISPAR. 



Carapax angustus, la?vis, paulo nitidus, omnino usque ad frontem nee 

 areolatus nee incequabilis, fronte fere recto, leciter emarginato ; mar- 

 gine antero-laterali levissime Z-dentato, dentibus nan salientibus. Pedes 

 antici inwqui, major crassus, Icevis, nudus, manu supra rotundatd 

 manu minor e minute tuber culatd, tuber culls partim paulo seriatis. 

 Pedes postici fere nudi, paucis pilis sparsis, 



Carapax narrow, smooth, somewhat shining, not at all areolate or 

 uneven in any part, front nearly straight, faintly emarginate ; an- 

 terolateral margin with three minute dentations. Anterior feet un- 

 equal, the larger stout, smooth, naked, hand rounded above, smaller 

 hand minute tuberculate, tubercles in part somewhat seriate. Pos- 

 terior feet nearly naked, a few scattered hairs. 



Plate 13, fig. 9 a, female, enlarged three diameters j b, under view 

 of front. 



Sooloo Sea. 



Length of carapax of female, 3*3 lines ; greatest breadth, 4 lines ; 



