CRUSTACEA NORTH PACIFIC EXPLORIN'G KXl'EUITION 22/ 



nels bounding' it laterally are, as usual, occupied with fascicles of 

 hair, largest anteriorly. Eyes more than half as long as the front is 

 wide ; cornea a little dilated. Apical portion of the ophthalmic scale 

 oblong, constricted at the base, but not acuminated at the extremity, 

 and marked above by a median longitudinal impressed line occupied 

 by short setae. Acicle of the antennde long, overreaching the eyes, 

 and thickly clothed with tufts of hairs on its upper or inner edge ; 

 fiagellum short, setose at the joints. Exognath of the outer maxil- 

 lipeds broad. 



The chelipeds, both right and left, are large and much longer than 

 the contiguous ambulatory feet. Right cheliped densely clothed 

 above with soft and rather short hair ; meros smooth above and un- 

 armed at the superior margin, but beneath very much dilated and 

 hairy, with the right margin pectinated, the left most expanded and 

 ciliated with long hairs ; upper surface of carpus and hand covered 

 with small scabriform granules, from the bases of which the hairs 

 arise ; carpus as long as the palm of the hand, armed with several 

 small purple spines at the inner margin and near the antero-interior 

 corner, and marked along the middle with a smooth groove ; hand 

 large, a little more than twice as long as broad ; palm with a row of 

 minute spines down the middle ; exterior margin of immovable finger 

 denticulated wdth spiniform teeth ; dorsal carina of dactylus armed 

 with a series of twelve bluish teeth. The left cheliped is also scab- 

 rous and hairy; meros and carpus almost or quite equal to those of 

 the right cheliped in length, but much narrower and more com- 

 pressed ; lower outer margins of meros and carpus and upper margin 

 of carpus spinous ; hand somewhat tetragonal, carinated at the mid- 

 dle above, and at the outer margin ; upper carina spinous. Ambu- 

 latory feet short and stout, thickly hairy above, but not spinulose ; 

 dactyli broad, not contorted, and shorter than the penult joint; un- 

 gues very large and strong. Color inclining to orange or minutely 

 mottled with red and yellow ; ambulatory feet broadly annulated 

 with deeper rod. Length of the animal, about 3.J : length of cara- 

 pax. 0.83; breadth of front, 0.3S; length of greater cheliped, 2.08 

 inches. 



It somewhat resembles the Piii^unis laiiKi^inosus <>f De Ilaan, in 

 which species, however, the ambulatory feet overreach the chelipeds 

 and "manu pedum secundorum tarsis jiarum breviore." In our 

 species the hand, even the left hand, is longrr thrui the longest 

 "tarsus." 



Our sjieciin.ens were found at Simoda. 



