(JUUSTACKA — WlirnCLKUGE. 141 



Subfamily ACANTHONYCHIN^. 



PUGETTIA, Dana. 



PUGETTIA MOSAICA, sp. nov. 



(Plate XXXV., figs. 5, 6, 7.) 



Stations 13, 35, 36, 37, 41, 42, 44, 57. 



Carapace subpyriform, slightly longer than broad, densely 

 covered with minute bead-like granules, rostral spines, gastric 

 and lateral branchial regions with a few slender hooked setae ; the 

 upper surface is marked by two elevated Ijosses, one on the cardiac 

 and the other on the intestinal region ; a short marginal spine is 

 present on each hepatic, and a large one is seated on each branchial 

 region ; the pair of branchial spines is in a transverse line with 

 the cardiacal elevation. Rostral spines short, acute, as long as 

 the interorbital space is wide, divergent and deflected towards 

 their apices. Preocular spine small, triangular and subacute ; 

 the postocular is separated from the orbital margin by a V-shaped 

 fissure, and from the hepatic spine by a wide sinus ; viewed from 

 above its outline is narrow and acute, the inner margin being 

 granulose and the outer smooth ; when seen from its lateral aspect 

 the outline is oblong with rounded ends, the surface being smooth, 

 white and slightly concave. 



The eyestalks and the joints of the antennae are more or less 

 beset with minute granules. The basal joint of the second 

 antenna is somewhat narrowed distally, the outer margin is thin 

 and acute, the base is rounded, and the apex terminates in a 

 triangular tooth ; the outer superior and the central surfaces are 

 minutely granulose ; the granules on the latter are situated in a 

 longitudinal groove, and are bounded above and at the sides by 

 a smooth marginal band. 



Chelipedes in adult male as long as the carapace and rostral 

 spines ; merus joint trigonus, outer angle obtuse, granulose, 

 inferior and superior borders with a thin acute keel, granulose on 

 the inner side ; inferior surface convex, smooth. 



Carpus a little longer than deep, about equal in length to the 

 diameter of the merus j external surface granulose ; inner granu- 

 lose setose ; upper surface smooth, with an acute arcuate keel. 



Hand compressed, sharply keeled above and below, scarcely 

 twice as long as the depth of the palm ; inner and outer surfaces 



