52 TRUE CRABS OF MONTEREY BAY 



Lophopanopeus leucomanus (Lockingtoii). 



Lophopanopeus leucomanus Rathbun, H. A. E., x, 182, 1904, and synonymy. 



Though recorded from the bay, I am unable to find among a large 

 number of specimens of this genus any corresponding to the description 

 of leucomanus. A specimen from San Diego has been examined. 



Lophopanopeus diegensis Rathbun. 



Plate XII, fig. 39. 



Lophopanopeus diegensis Rathbun, Am. Nat., xxxiv, 137, 1900. — Rathbun, H. A. E., 

 X, 184, 1904. 



There are 15 specimens of this species in the collection all dredged 

 from moderate depths, 10 to 15 fathoms. Many of the series, including 

 some of the smallest, are egg-bearing females, indicating that the adult 

 size is much less than that of L. heathii. All agree well with Miss Rath- 

 bun's description and figure though the carpal crests of the ambulatory 

 legs are in some cases longer and more acute than represented. Color in 

 life, dull brown or blackish occasionally tinged with red, but never con- 

 spicuously marked as in L. heathii. 



This species has not been previously reported from north of San 

 Diego and oflF Pt. Conception. 



Genus XANTHIAS Rathbun. 



Xanthodes Dana, Proc. Acad. Nat. Sci. Phila., vi, 75, 1852 (Name preoccupied). 

 Xanthias Rathbun, Proc. Biol. Soc. Washington, xi, 165, 1897 (Type — Xanthias 

 granoso-manus (Dana)). 



Xanthias taylori (Stimpson). 

 Plate XIII, fig. 40. 



Xanthodes taylori Stimpson, Ann. Lye. Nat. Hist. N. Y., vii, 208, pi. 3, fig. 3, 1859. 

 Xanthias taylori Holmes, Occas. Papers Calif. Acad. Sci., vii, 65, 1900, and synonymy. 

 — Rathbun, H. A. E., x, 185, 1904. 



Quite common and represented in the collection by numerous speci- 

 mens. Color in life a uniform dark red, lighter below, fingers black. In 

 all the specimens there is a tendency towards fusion of the tubercles on 

 the carpus of the cheliped so that a ridge is formed along the distal end 

 of the joint, while in some specimens from San Diego these tubercles 

 are distinct and more prominent. 



