O.UlMAlUn.K. 10 1 



0. Phoxus Kr6yeri. 

 Phoxus Krijyori, iftimpsan, Marine Invert. Grand Mannn, p. SB. 



'* Larger and thicker than P. plumosxis ; glabrous above, and of a 

 pale-red colour, with the eyes white. The antennae, legs, and coxa) 

 ai-o very hairy, but the hairs are simple instead of plumose. Su- 

 perior antenna; shorter and more slender than the inferior ones. 

 Mandibles with, an appendage almost as long as the supoi-ior 

 anteuna\ Pirst paii- of gnathopoda ^\■ith the propodos more elon- 

 gated than in P. plumosiis ; penultimate pair of peroiopoda not so 

 long in proportion ; the two anterior pairs of pereiopoda having a 

 simple dactylos. Telson consisting of two sharp spines. 



" Length 0-3 inch. 



''Taken at low- water mark, on a sandy shore, at High Duck 

 Island." — Stimpson. 



18. GRATIA, n.g. 



Cephalon produced, hood-shaped. Eyes two. Superior antcnnoc 

 not appendiculatc. Gnathopoda subchelate. Pereiopoda subequal, 

 and terminating in a sharp-pointed curved dactylos. Posterior 

 pleopoda bii-amous. Telson squamiform, entire ? 



This genus differs from (Edicerus of Kroyer in having two eyes, and 

 in the fifth pair of pereiopoda not being longer than the preceding. 



It is named in compliment to the Keeper of the Zoological Col- 

 lections of the British Museum. 



1. Grayia imbricata, n. s. (Plate XVI. fig. 4.) P.M. 



Three anterior segments of the pleon posteriorly elevated, giving the 

 animal an imbricated appearance ; posterior margin of the third 

 segment waved. Eyes round, black. Superior anteiina; a little 

 longer than the inferior. Coxa; smaU. Gnathopoda subixjual. 

 Pereiopoda subequal. Three posterior paii's of pleopoda subec^ual. 



'Length about ^■^yths of an inch. 



Ilab. Falmouth ? {Mr. W. Webster). 



2. Grayia Pugettensis. (Plate XIV. «. fig. 4.) 

 Iphimcdia I'uyetteurtid, JJana, U. S. Explor. Expcd. p. 932. pi. CJ. f. 0. 



" Eyes hardly reniform. Propodos of second pair of gnathopoda of 

 moderate size, elongato-ovate, subacute at apex, l^elow and abovo 

 nearly e([ually arcuate, below hirsute ; dactylos long ; carpus about 

 one-third as long as the propodos, below rather narrow, obtuse and 

 liirsiite : meros narrow, triangularly produced Itehind. Fiftli i)air 

 of pereiopoda slender ; selie few, sliort. Caudal slyhts long, first 



