94 CRUSTACEA. 



Dredged at Lahaina, Maui, Hawaiian Islands. 



Length, six and a half lines ; greatest breadth, nearly three lines. 



The specimen is in the soft-shell state, and it is difficult to say how 

 far its papillose condition is, owing to its age or its moulting, and 

 what of it is characteristic of the mature animal. The appearance of 

 the individual, and especially the small size of the eyes, seem to show 

 that it is nearly mature if not quite so. The orbit of the eye is very 

 imperfect, the emargination or fissure in its upper and under sides 

 being so great that the eye is not concealed when thrown back, except 

 at its tip. The legs are nearly naked, but have a few hairs, and also 

 a few papillae similar to that figured in fig. 1 /. There are two such 

 papillse on the anterior side of each eye ; one at apex, and the other a 

 short distance from the apex. The horns of the beak are hairy, and 

 very slender, and quite divergent. Behind the orbit, the body is 

 abruptly narrower, and there is here a small spine on either side. 

 The tarsi are very slender and red, with minute spinules. 



GENUS SCYRA (Dana). 



Naxias antennis orbitdque qffinis. Rostrnm lamuiafinn, acute fnrcatum. 

 Articulus antennarum externarum primus umlvjin- aiit/itxfitx, apice 

 externo ultra rostrum parce saliente; secundiis depressus, tertio valde 

 longior. 



Related to Naxia in the antenna? and orbit. Beak rather short, 

 acutely furcate, laminate. First joint of outer antenna) narrow 

 throughout, outer apex projecting a little either side of beak ; second 

 joint depressed, much longer than third. Feet of moderate length. 



This genus has laminate antennae like Lissa, but they are acute, 

 and the outer antennas are concealed beneath, excepting the tip of the 

 flagellum. The outer margin of the first joint of these antennte is 

 straight and parallel with the medial line of the body ; and at its 

 outer basal angle there is a tooth, while the outer apical angle lies 

 directly beneath the praeorbital spine. There is no opening through 

 the lower orbital margin. The epistome is transverse. 



