EUPAGURUS CALIFORNIENSIS. 55 
In the unique type specimen of C. fanneri the abdomen is not quite sym- 
metrical, but this may be an individual peculiarity resulting from the shape of 
the cavity in the stone which formed its abode. 
CALCINUS Dana. 
Proc. Acad. Nat. Sci. Phila., V. 268, 185]. 
Calcinus obscurus Srimrs. 
Ann. Lyc. Nat. Hist. N. Y., VII. 83, 1859. 
Two specimens, collected at Panama. The larger specimen is in the 
shell of Nerita scabricosta. 
EUPAGURUS Branpr (restr.). 
Middendorff’s Sibirische Reise, Bd. II., Th. 1, p. 105, 1851. Restricted by Stmpeson, Proe. Acad. 
Nat. Sci. Phila. X. 286, 1858. 
Eupagurus californiensis Brnepicr. 
Plate XI., Fig. 2-2/. 
Proc U.S. Nat. Mus., XV. 21, 1892. 
This species belongs to the E. denwimanus group (subgenus Elassochirus 
Benedict *), which includes smooth species with broadly oval right hand, 
very small left hand, and ophthalmic scales usually long, pointed, and con- 
cave above. The species belonging to this group in many ways approach 
the genus Pylopagurus A. M. Edw. et Bouy..t but the right hand is not trans- 
formed into the highly specialized operculum of Pylopagurus, and there are 
no paired sexual appendages on the abdomen in either sex. 
Description of a male. — Body and appendages, in general, smooth and free 
from hairs. Carapace shorter than the abdomen; anterior section longer 
than the posterior, indurated, smooth, polished, naked, convex from side to 
side, longer than wide; gastric region bounded on each side by a conspicuous 
longitudinal furrow ; median projection of the front short and acute, pro- 
duced beyond the lateral projections, which are angular but not acute ; a stiff 
hair springs from each side of the base of the median projection of the front. 
Fye-stalks rather long, curved slightly outward, somewhat enlarged at the 
distal end, and furnished with a few small tufts of hair arranged in a longitu- 
* Proc. U. S. Nat. Mus., XV. 1, 1892. + Mem. Mus. Comp. Zool., Vol. XIV., No. 3, p. 74, 1893. 
