1921] Schmitt: The Marine Decapod Crustacea of California 133 
Type Locality—Norton Sound, Alaska, 12 fathoms. 
Distribution.—Arctie Ocean southward through Bering Strait to Kamchatka 
and California, 3 to 240 fathoms (Rathbun). The single California record for 
this species is from 240 fathoms, off Santa Cruz. 
Remarks.—Balss (1918, p. 63) considers Pagurus capillatus (Benedict) identical 
with P. trigonocheirus (Stimpson) (1907, p. 221), basing his remarks upon a speci- 
men of the former received from the U. S. National Museum. However, with his 
conclusion I am unable to agree, having the type of P. capillatus before me. The 
differences between the two are unmistakable: in P. capillatus the antennal scale 
does not exceed the eye, in P. trigonocheirus it does and usually considerably; the 
eye-stalks of the former are the more slender, the length to breadth being about 
as 5:1, while in the latter the relation is about 4:1, Balss giving 3.9:1 as an aver- 
age of five specimens. Moreover the triangular outer face of the smaller hand of 
P. trigonocheirus has its proximal upper and lower margins much bowed out (as is 
well shown in Stimpson’s figure (Op. cit., pl. xxvi, fig. 2), making that face so 
broadly triangular that its greatest width is contained in its length only twice; 
in P. capillatus the width of the same face of the smaller hand is contained in 
its length three times. The shape of this triangular outer face of the small hand 
which in fig. 85, b is foreshortened and therefore does not show its proper propor- 
tions, is very similar to that of P. setosus (p. 136, fig. 88), but relatively not so 
long as compared to its width; in P. setosus the outer face of the smaller hand 
is about four times as long as wide, in P. capillatus, as stated above, three times 
as long as wide. Further the large hand is more hairy in fresh specimens of 
P. capillatus, and not quite so narrow triangularly as in P. trigonocheirus. 
Pagurus tanneri (Benedict) 
Eupagurus tanneri Benedict, Proc. U. 8. Nat. Mus., 15, 10, 1892. 
Pagurus tanneri Holmes, Occas. Papers Calif. Acad. Sei., 7, 140, 1900; 
Rathbun, H. A. E., 10, 158, pl. 4, fig. 7, 1904. 
Characters.—Large hand with a prominent ridge beginning at the articulation 
of the carpus near the inner angle of the palm, running diagonally across it 
and along the inner portion of the immovable finger; this ridge is joined a little 
behind the gape of the fingers by another, running across the palm from near 
its outer proximal angle; these ridges enclose a subtriangular area, either side 
of which the palm is deeply excavated; subtriangular area armed with five or six 
short spines; outer depression of hand with a few spiny granules; inner depression 
unarmed. Outer face of small hand subtriangular and deeply concave; upper 
margin armed with a single row of spines, a short row of spines from the carpal 
margin unites with this row, making it appear double for a part of its length in 
small specimens. Anterior portion of carapace as wide as or wider than long; 
median projection of front triangular, much longer, and projecting much farther 
forward than the subacute, broadly triangular lateral teeth, the ends of which 
are furnished with a terminal spine. Hye-stalks about two-thirds as long as 
anterior portion of carapace. Acicle exceeding eye-stalk by nearly half its length. 
Dactyls of ambulatory legs about as long as entire carapace. 
Dimensions.—Type, male: Tength of carapace 31 mm., of anterior portion of 
carapace 18 mm., width of anterior portion 19 mm., length of larger cheliped 
102 mm., of hand 40 mm. Many of the specimens from off California are but half 
the size of the type. 
