22 NEW SPECIES OF HERMIT CRABS—BENEDICT. 
the prehensile edge is a row of granules. Between this row of granules 
and the margin the surface is deeply concave. 
Ambulatory legs moderately stout. From the upper distal margin 
of the carpal joints there is a small spine extending forward over the 
propodus. The dactyls are long and thin, but little curved. 
Color in alcohol white. 
California. 
Eupagurus mexicanus. 
Anterior portion of carapace much longer than broad. Median pro- 
jection of the front sharp and but little in advance of the lateral, which 
are angular and each armed with a very small spine below the margin. 
The eye-stalks are long and nearly straight. The cornea is a little 
dilated. The eye scales are long, pointed, and deeply concave. The 
acicle does not reach the end of the eye. 
The large cheliped is as long or longer than the ambulatory legs; 
longer in small specimens, and about the same length in large. The 
merus is compressed and glabrous; a small spine occupies the lower 
anterior outer angle. The carpus is sparsely granulose, otherwise gla- 
brous. The inner border is raised, thin, and uneven. There is no ridge 
or marking of any kind separating the upper from the outer surface. 
The lateral surfaces are connected below by a straight ridge. The hand 
is thick and but little wider than the carpus. The proximal inner an- 
gle of the upper surface is minutely granulous. The granules become 
gradually larger diagonally across the palm to the pollex. The lateral 
margins of the palm are not thinned out as in related species, but are 
marked by a row of oblong granules. Two rows of coarse granules with 
a sulcus between mark the outer surface of the dactyl. 
The left cheliped is very weak and small, just reaching the margin 
of the large hand, and no stouter than the ambulatory legs. The car- 
pus is much compressed and has a double crest. The hand is semi- 
cylindrical; its vertical face is not equal to its horizontal. 
The ambulatory legs are slender. The dactyls are thin, straight, but 
curve near the nail, and are spinulose below. The large cheliped is red 
in alcoholic specimens, becoming ligiter or white towards the tips of the 
fingers. The ambulatory legs are a little lighter shade than the cheli- 
peds, becoming lighter at the joints, and with a band of light color about 
the middle of the dactyl. 
Gulf of California. 
P Bupagirus roseus,. 
Anterior portion of carapace a trifle longer than broad. Median 
projection of front, an obtuse angle produced but little beyond the lat- 
eral projections, which are also angular. The eye-stalks are moderately 
stout, constricted in the middle. The eye scales, like others of the group, 
are long, narrow, and pointed, with a groove on the upper surface. The 
peduncles of both antennula and antenna are longer than the eye, while 
the acicle is a trifle shorter. 
