18 NEW SPECIES OF HERMIT CRABS—BENEDICT. 
eye-stalks are comparatively shorter and stouter than in beringanus. 
The scales are triangular; subterminal spines very large. The acicles 
reach nearly to the tip of the eye. 
The right cheliped is large, shaped as in the last species, but differ- 
ently armed. On the lower anterior portion of the merus there are two 
prominent tubercles, one of which is spiny as in the large cheliped. The 
carpus is bordered on its inner margin by a prominent row of short 
spines; near this is a parallel row of spines; the remainder of the 
surface is sparsely covered with spiny granules, The hand is irregu- 
larly set with spines about the same size as those of the carpus. The 
fingers are horny tipped. 
The carpus of the small cheliped has a single crest of spines. A few 
much smaller spines are scattered about the outer surface. The outer 
surface of the hand is convex and set with spines, 
British Columbia. 
Eupagurus undosus. 
Front tridentate; middle tooth but little produced. All are small 
and are not widely separated. Eye-stalks slender, but little dilated at 
the cornea. Scales pointed, subtriangular. The acicles of the antenne 
are as long or a little longer than the eyes. 
The right cheliped is much larger than the left; in proportion to the 
body it is large and strong. Outer surface of the merus smooth and 
glabrous, sprinkled with minute granules; lower margin armed with 
short conical spines tipped with red. Carpus four-sided ; upper sur- 
face subrectilinear, thickly set with short spines tipped with red; 
lateral surfaces slightly concave. The outer margin of the hand from 
its posterior third rounds forward to the end of the pollex. The upper 
surface is thickly set with spiny granules, those on the outer margin 
being a little larger. The triangular oblique surface of the small hand 
is covered with tubercles as in the largehand. Both hands are charac- 
terized by peculiar depressions. The one on the inner upper surface 
of the large hand has straight sides and runs back tothe carpus. The 
depression on the outer upper surface is variable. In the small hand 
the depressions are irregular and extend along each margin, while the 
central portion is occupied by a raised ridge. 
The ambulatory legs of the right side are of equal length and reach to 
the end of the cheliped. The legs of the left side overreach the small 
cheliped by about one-half the length of the dactyl. The carpal joints 
of the first pair are armed on the upper margin; those of the second 
pair are smooth. The dactyls of all are short, stout, and spinulose. 
In the chelipeds the color is a reddish orange. The extremities of 
the joints of the ambulatory legs are red, and the intermedial parts 
very light. The specimens are all more or less hairy. 
Bering Sew. 
