202 CRUSTACEA. 



rotwulatd, carpo intus uni-angulato ; postici paulo compressi, inermes, 

 pubescentes. 



Carapax convex, smooth, anteriorly faint areolate, antero-lateral mar- 

 gin entire, not dilatate. Anterior feet unarmed, hand scabrous 

 without, rounded above, carpus with an angle on inner side ; poste- 

 rior feet somewhat compressed, unarmed, pubescent. 



Plate 11, fig. 7, animal, enlarged four diameters. 

 Oahu or Maui, Sandwich Islands. 



Length of carapax, one and three-fourths lines; greatest breadth, 

 two and a half lines. The specimen is evidently a young individual. 

 The carapax has some scattered short hairs, giving it a ragged look, 

 and the hairs of the legs are similarly irregular. The carpus and 

 hand are partly pubescent. 



GENUS DAIRA, De Haan. 



The deep emargination in the anterior margin of the outer maxil- 

 lipeds in Da'ira, by which it is especially distinguished, is the aperture 

 for the efferent channel from the branchiao. Although so distinct in 

 the common species, the same character, less strongly marked, is found 

 in some Chlorodii; and the species nodosus, instituted by Dr. Randall 

 (J. Acad. Nat. Sci. Philad., viii. Ill), appears to be more properly a 

 Chlorodius. 



Daira, DE HAAN, Faun. Japon., 18, 1833. 

 Lagostoma, EDWARDS, Crust., i. 386, 1834. 



DAIRA VARIOLOSA (Fair.), Dana. 



Carapax valde convexus, nitidus, baccato-tuberculosus tuberculin pisifor- 

 mibus, fronte inter-antennali bilobato, lobis salientibus, margine lateral! 

 et antero-laterali \S-U-denticulato. Pedes antici tuberculati, niami 

 brevi, digito mobili spino-tuberculato. Pedes octo sequentes compressi 



