182 RATHBUN 
LOPHOPANOPEUS HEATHII Rathbun. 
Plate vu, fig. 9. 
Lophopanopeus heathiti RATHBUN, Amer. Nat., XXXIV, 137, 1900. 
Lophoxanthus leucomanus HOLMES, Occas. Papers Calif. Acad. Sci., VII, 61, 
1900 (part). 
Distribution.—Specimens are in the National Museum from Monterey 
Bay, California, under stones, mean and low tide mark (H. Heath; 
types, Cat. No. 22,870); Monterey Bay (J. O. Snyder) ; Catalina Island. 
Others also from Monterey and Catalina Island, and belonging to the 
Museum of the California Academy of Sciences, have been examined. 
The carapace is smooth except on the outer half of the hepatic region, 
where it is slightly roughened. 
The margin of the frontal lobes is slightly oblique, the outer tooth 
inconspicuous. 
The anterior margin of the third antero-lateral tooth is in line with the 
second tooth. 
The carpus of the chelipeds is smooth, or nearly so. 
The hand is smooth, one tooth on inner side of upper margin. 
The dark color of the fingers does not run back on the palm. 
The carpal joints of the ambulatory legs have the anterior or upper 
margin slightly bilobed. 
The propodi have slightly convex anterior margins. 
Dimensions.—Male, length 12.2 mm., width 16.5 mm., proportion of 
length to width 1 : 1.35, fronto-orbital width 11.6 mm., proportion of fronto- 
orbital width to width of carapace 1:1.42. 
While the antero-lateral teeth resemble those of Z. del/us, the smooth 
surface and the tooth on the manus ally it closely to Z. frontalis. 
LOPHOPANOPEUS LEUCOMANUS (Lockington). 
Xanthodes leucomanus LOCKINGTON, Proc. Calif. Acad. Sci., VII, 32, 1877 (not 
X. leucomanus, op. Cit., p. 100). 
Lophoxanthus bellus A. MILNE EDWARDS, Crust. Rég. Mex., 257, 1879 (part). 
Lophopanopeus leucomanus RATHBUN, Bull. Lab. Nat. Hist. State Univ. Iowa, 
IV, 272, 1898. 
Lophoxanthus leucomanus HOLMES, Occas. Papers Calif. Acad. Sci., VII, 61, 
pl. I, fig. 4, 1900 (part). 
Distribution.—¥From Monterey to San Diego, California: San Pedro, 
Catalina Island, and San Diego (National Museum); Monterey, Santa 
Rosa Island, and San Diego (Lockington). Types not extant (Holmes). 
The anterior half of the carapace is deeply rugose, the roughness on 
the hepatic region not divided from that on the two adjacent teeth. 
