324 BULLETIN 152, UNITED STATES NATIONAL MUSEUM 



LOPHOPANOPEUS LEUCOMANUS (Lockington) 



Plate 153, Figures 5 and 9; Plate 154, Figure 4 



Xanthodes leucomanus Lockington, Proc. California Acad. Sci., vol. 7, 1876 

 (1877), p. 32 (type-localities, Santa Rosa Island, Monterey and San Diego; 

 types not extant); not X, leucomanus Lockington, Proc. California Acad. 

 Sci., vol. 7, 1876 (1877), p. 100. 



Lophoxanthiis bellus A. Milne Edwards, Crust. Reg. Mex., 1879, p. 257 (part). 



Lophopanopeus leucomanus Rathbun, Bull. Lab. Nat. Hist. State Univ. Iowa, vol. 

 4, 1898, p. 272; Harriman Alaska Exped., vol. 10, 1904, p. 182. — Schmitt, 

 Univ. California Publ. Zool., vol. 23, 1921, p. 243, text-fig. 145, pi. 37, fig. 6. 



Lophoxanthiis leucomanus Holmes, Occas. Papers California Acad. Sci., vol. 7, 

 1900, p. 61, pi. 1, fig. 4. 



Diagnosis. — Carpus of chelipeds covered with numerous small pits 

 separated by reticulated lines. Carpus of ambulatory legs strongly 

 bilobed. Roughness of hepatic region continuous wdth that on 

 adjacent teeth. 



Description. — Carapace well areolated; anterior half deeply rugose, 

 roughness on hepatic region not divided from that on two adjacent 

 teeth. Margin of frontal lobes strongly oblique except outer tooth. 

 Third antero-lateral tooth more produced than second or coalesced 

 tooth; a definite, finely granulate marginal line connects third tooth 

 with orbit. Subhepatic and suborbital region rough with unequal 

 granulate tubercles, extending as far down as a line connecting third 

 tooth with anterior angle of buccal cavity. 



Carpus of chelipeds covered with numerous small irregular pits 

 separated by reticulating lines. Upper portion of hand pitted and 

 reticulated like carpus and with two or more irregular, inward-pointing 

 teeth on upper margin, the proximal the larger. Color of fingers 

 not running back on palm. Carpus of ambulatory legs with a very 

 thin and strongly bilobed crest on the upper margin; propodus wide 

 with a prominent lobe at proximal end. 



Color. — The general color of an ovigerous female from Laguna 

 Beach, preserved in formalin, is red, deepest along the front and 

 antero-lateral margins and on the upper half of the chelae. 



Measurements. — Male (50209), length 11.1, width 14.6, fronto- 

 orbital width 8.5, width of front 5.2 mm. 



Range. — From Monterey (Lockington, Holmes) to San Diego, 

 California. 



Material examined. — 



CALIFORNIA. — Venice, Santa Monica Bay; Anton Dohrn; 

 P. S. Barnhart, Venice Marine Biological Station: Beach on roots 

 of kelp; 1 female, 1 young (50216). Breakwater; October 29, 1913; 

 2 females (50213, 50290). 



Point Vincent, from rocks; February, 1918; H. N. Lowe; 2 males 

 (51121). 



