168 BULLETIN OF THE 



et Bouv., compared with C. tanneri, displays longer eyestalks, while the thorax 

 and abdomen are less pubescent, and the coxal segments of the posterior legs are 

 much more protuberant. 



Length of carapace, 7 mm.; breadth, 5 mm.; length of eyestalk, 3 mm. 



Station 3368. 66 fathoms. 1 male. 



Found in a cavity in a piece of dead coral rock. 



The abdomen in the unique type specimen is not quite symmetrical, but this 

 may be an individual peculiarity resulting from the shape of the cavity in 

 which the animal lived. 



Pylopagurus longimanus, sp. nov. 



Carapace smooth, naked, polished ; rostrum short, triangular, subacute, ad- 

 vanced farther than the rounded lateral angles. Abdomen longer than cephalo- 

 th^rax. Eyestalks equal in length to the first two segments of the antennulary 

 peduncle. Ophthalmic segment uncovered. Ophthalmic scales separated by 

 a considerable interval, triangular, their tips split in a horizontal plane so that 

 they end in two acute teeth, one above the other, the lower tooth the longer. 

 Last segment of antennulary peduncle very long and slender (much longer 

 than the eye-stalk). Right cheliped of enormous size, much exceeding the 

 whole body in length ; the outer face of the merus is nearly smooth, the lower 

 and inner faces granulated ; carpus very large, equalling in length all the pre- 

 ceding segments combined, its surface granular, the granules assuming the form 

 of small spinulose tubercles on the dorsal face, which is limited within by a 

 row of larger teeth. Chela irregularly oval, the external side flattened to form 

 an opercular facet, which is thickly set with granules and surrounded with a 

 margin of denticles. Left cheliped very small, its segments more hairy than 

 those of the right ; basal part of propodus short and swollen, the fingers long, 

 gaping at the base; the outer or upper faces of the propodus and dactylus are 

 granulated, and definitely bounded by a line of regularly arranged granules on 

 the outer margin of the dactylus and the inferior margin of the propodus ; the 

 inner or lower face of the chela is pretty free from granules, but is furnished 

 with numerous setse, those on the dactylus being grouped in conspicuous tufts 

 or pencils. Penultimate pair of thoracic appendages almost perfectly chelate, 

 its rasp restricted to the distal part of the claw, broad, and composed of many 

 rows of scales. 



The legs are yellowish, banded and mottled with red. 



Length of carapace, 10 mm.; eyestalk, 4 mm.; right cheliped, 34.5 mm. 

 (merus, 8 mm.; carpus, 11 mm.; propodus, 14.8 mm. ; dactylus, 10 nmi.). 



Li younger, smaller specimens the chelipeds are shorter in proportion to the 

 length of the body, and the major claw is shorter, broader, and of a more regu- 

 lar oval form. A specimen, whose carapace is 6.5 mm. long, gives the follow- 

 ing dimensions for the right cheliped: total length, 16.5 mm.; merus, 4.5 mm.; 

 carpus, 5.5 mm.; propodus, 7.5 mm. ; dactylus, 4.5 mm. 



