„«, CRUSTACEA. 



ratio, 1 : 1'66. In another, length, 5*5 lines; breadth, 9 lines; ratio, 

 1 : 1-64. Colour, light brown, often nearly white or dirty white, some- 

 times purplish ; fingers, brownish black. The lobes of the antero- 

 lateral margin are but faintly separated, especially the anterior two; 

 the margin "comes to an edge, except towards the orbit, The front is 

 but slightly sinuous, as seen in a vertical view, and does not at all 

 project. In a front view it is also nearly straight, and it shows a 

 furrow quite near the edge. There are a very few hairs on the legs 

 (exclusive of the tarsus, which is more or less hirsute), and these are 

 mostly confined to the lower side of the penult joint. The tarsus of 

 the posterior pair of legs is about half as long as in preceding pairs. 

 The outer maxillipeds have the anterior margin neatly concave. 



PSEUDOZIUS INORNATUS. 



Pseud, piano carapace affinis. Carapax paulo latlor, prope mar- 

 ginem anticum abruptius impressm, manjine anterolateral'! duiinctiw 

 i-lobato. Pedes antici ineequi, carpo leviter rwjato. Pedes postici 

 latiores, articulo penultlmo supra sparsim Mrmto } tarso IdrsutQ. 



Near Pseud, planus in the carapax, which is a little broader, and 

 more abruptly impressed near the front margin. Anterior feet 

 unequal, carpus a little rugate. Posterior feet also broader, penul- 

 timate joint above sparsely hirsute, tarsus hirsute. 



Plate 13, fig. 7 a, front view, showing outer antennae ; b, outer 

 maxilliped ; c, abdomen, natural size ; c/, extremity of inner branch 

 of first pair of maxillipeds. 



Sandwich Islands. 



Length of carapax, six and a half lines ; greatest breadth, eleven 

 and one-fourth lines; ratio of length to breadth, 1 :1"73. The speci- 

 men is a female, with eggs. The carapax is broader than in the 

 planus, and the lobes of the antero-lateral margin are much more dis- 

 tinct, and just posterior to the orbit the margin is quite thick, and 

 the surface is uneven. The anterior margin of the outer maxillipeds 

 is less concave, and the outer margin of the long joint of the fouette 



