DECAPODS 183 
The frontal lobes are strongly oblique, except the outer tooth, which 
is not strongly marked. 
The third antero-lateral tooth is more produced than the second 
tooth. 
The carpus of the chelipeds is covered with numerous small irregular 
pits separated by reticulating lines. 
The upper portion of the hand is pitted and reticulated like the carpus, 
and has two or more irregular inward-pointing teeth on upper margin, 
the proximal the larger. 
The color of the fingers does not run back on the palm. 
The carpal joints of the ambulatory legs have on the anterior or upper 
margin a very thin crest, strongly bilobed. 
The propodal joints are wide, and have a prominent lobe at the prox- 
imal end. 
Dimensions.—Male, length 8.7 mm., width 11.6 mm., proportion of 
length to width 1: 1.33; fronto-orbital width 7.1 mm., proportion of 
fronto-orbital width to width of carapace 1: 1.63. 
LOPHOPANOPEUS LOCKINGTONI Rathbun. 
Plate vu, fig. 7. 
Xanthodes leucomanus LOCKINGTON, Proc. Calif. Acad. Sci., vII, 100, 1877 
(not X. leucomanus, op. cit., p. 32). 
Lophoxanthus bellus A. MILNE EDWARDS, Crust. Rég. Mex., 257, 1879 (part). 
Lophoxanthus leucomanus HOLMES, Occas. Papers Calif. Acad. Sci., vil, 61, 
1900 (part). 
Lophopanopeus lockingtoni RATHBUN, Amer. Nat., XXXIV, 137, 1900. 
Distribution.—San Diego Bay, California, to Gulf of California. Speci- 
mens examined from San Diego Bay, 414 fathoms (A/batross, type local- 
ity); San Diego (H. Hemphill); San Diego (Cal. Acad. Sci.); Gulf of 
California at La Paz, 3 fathoms, Mulege Bay, and Port Escondido (speci- 
mens described by Lockington, of. cit., p. 100, not p. 32). 
The anterior half of the carapace is irregularly roughened ; the obliquely 
oval granulated patch on the hepatic region is separated from the gran- 
ules on the adjacent teeth. 
The frontal lobes are slightly oblique, but the outer tooth is well 
marked. 
The third? antero-lateral tooth is more produced than the second 
tooth. 
The carpus of the chelipeds is crossed by a few thickened ridges 
incompletely reticulating, anterior margin having a thick granulated ridge 
distinctly separated by a deep sulcus from the rest of the carpus; a large 
granulated tubercle near articulation with hand. 
