198 University of California Publications in Zoology (Vou. 23 
Dimensions.—Types, male: length 10 mm., width 6 mm., length cheliped about 
28 mm.; female: length 7.5 mm., width 5 mm. 
Type Locality— Off San Diego, California, 36 fathoms (‘‘Albatross’’ station 
2934). 
Distribution.—Monterey Bay or Santa Catalina Island; and from San Pedro 
to San Diego, California, to a depth of 36 fathoms; also northwest of Cerros 
Island, Lower California, 58 fathoms. 
Remarks.—It is through the kindness of Miss Rathbun that I am able to here 
unite Anasimus and EHrileptus. In working over material of these genera collected 
by the Venice Marine Biological Station she discovered their identity; Hrileptus 
spinosus proved to be the male of Anasimus rostratus. 
Genus Oregonia Dana 
Carapace flattened, not spinose. Rostrum consisting of two long, slender, con- 
tiguous spines. Postocular spine present, prominent. Chelipeds rather slender, 
length variable. Ambulatory legs of moderate length, penultimate joint similar to 
preceding one, not dilate and compressed. 
Oregonia gracilis Dana 
Oregonia gracilis Dana, Amer. Jour. Sci. (2), 11, 270, 1851; Crust. U. 8. 
Expl. Exped., 1, 106, 1852, pl. 3, fig. 2, 1855; Doflein, S. B., Math.-phys. 
Klasse, K. Abh. der Bayer. Akad. Wiss., 29, 183, 1899; Holmes, Occas. 
Papers Calif. Acad. Sci., 7, 19, 1900; Rathbun, H. A. E., 10, 171, 1904; 
Way, Puget Sd. Mar. Sta. Publ., 1, 369, fig. 20, 1917. © 
a 
Fig. 122. Oregonia gracilis, g; a, dorsal view, X 4; b, ventral view of 
anterior portion, X 1%4 (after Dana). 
Characters.—Carapace subtriangular, more or less setose and roughened by 
. . . . . e 
minute prominences; median, cardiac, and branchial regions tumid. Rostrum 
bifid, composed of two long, slender, contiguous spines; postocular spine promi- 
ment, slender, acute, inclined forward and situated some“distance behind the orbit. 
