or aaa PROCEEDINGS OF THE NATIONAL MUSEUM. it 
the hand. The one on the outer side begins on the pollex and runs 
backward, becoming deeper opposite the base of the dactyl and widest 
a little back of this. On the inner part of the hand the second depres- 
sion begins along the articulation of the dactyl and runs back to the 
proximal margin. There are no granules or spines in this depression, 
and but few scattered spiny granules in the other. The surface of the 
hand is glabrous. 
The left cheliped is small, reaching to the middle of the large hand. 
Merus compressed above, thickened below, and armed with sharp 
spines. Carpus compressed; upper surface flattened, each margin 
armed with a row of prominent sharp spines; lower surface convex, set 
with small tubercles. Outer face of the hand subtriangular, deeply 
concave. Upper margin of this face armed with a single row of spines, 
and the lower margin with a double row irregularly placed and much 
smaller. A short row of spines from the carpal margin unites with the 
upper marginal row, making this row appear double for a part of its 
length in small specimens. Fingers slender, bent downward ; prehen- 
sile edges thin, even, and horny. 
Ambulatory legs slender, in large specimens reaching but little be- 
yond the cheliped on the right side, in small specimens extending be- 
yond by one-half the length of the dactyl. Merus joints much com- 
pressed; upper surface flattened, rugose; rug hairy. Carpal joints 
armed on the upper margin with a single row of sharp spines. Pro- 
podal joints compressed above, irregularly set with short spines. Dac- 
tyls long, slender, twisted. Two lines of hair near the margins of the 
inner surface are very conspicuous. Outer surface convex, glabrous. 
Alaska, 
Eupagurus confragosus. 
Front tridentate; teeth pointed; median tooth but little produced 
beyond the lateral. Eyestalks stout, tapering gradually to the di- 
lated cornexe. Scales acuminate; subterminal spine long, stout. Sec- 
ond article of antenna stout, its outer angle produced to about the mid- 
dle of the penultimate article. Acicles reaching but little beyond the 
eyes. Penultimate article subconical. 
The right cheliped is stout, falling short of the tips of the ambulatory 
legs. Merus and carpus very much as in tanneri, but the merus is more 
spiny below and the spines of the inner upper margin of the carpus 
are larger in comparison with those of the outer margin than in that 
species. The hand is wider and stouter than in tanneri, but made up in 
much the same way. The outer margin is spiny while the inner margin 
is set with spiny granules. The raised triangle with its base on the 
articulation with the carpus is much broader. The ridge which runs 
from the inner angle to the immovable finger is granulate rather than 
spiny. The ridge on the inner side of the triangle is broken by a 
V-shaped notch, the broken parts changing direction at this point. The 
outer ridge ofthe triangle, a short line inside, and the apex are sparsely 
