DECAPODS 185 
Genus Xanthias Rathbun. 
XANTHIAS TAYLORI (Stimpson). 
Distribution—Monterey, California, to Magdalena Bay, Lower Cali- 
fornia. Beach to 55 fathoms. 
Size.— Unusually large individuals have been collected at Pacific 
Grove, California, by John C. Brown. An egg-laden female measures 
24.6 mm. long on the median line of the carapace, and 42 mm. wide. 
XANTHIAS LATIMANUS (Lockington). 
Distribution.—San Diego, California (Lockington). 
Species not seen since Lockington’s record. 
Genus Pilumnus Leach. 
PILUMNUS SPINOHIRSUTUS Lockington. 
Plate vit, fig.-2; 
Distribution.—San Diego, California, and Gulf of California; 10-22 
fathoms. Bay of St. Elena, Ecuador (Nobili). 
Genus Heteractza Lockington. 
HETERACTAA LUNATA (Milne Edwards and Lucas). 
Pilumnus lunatus MILNE EDWARDS and Lucas, D’Orbigny’s Voy. l’Amér. 
Mérid., Crust., 20, 1843, pl. IX, fig. 2, 1847. 
Heteractaa lunata KINGSLEY, Proc. Acad, Nat. Sci. Phila., 1879, 396 (1880). 
Distribution.—San Diego, California (Faxon) to Chile. 
Family P7-MNOTHERIDA. 
Genus Pinnotheres Latreille. 
PINNOTHERES NUDUS Holmes. 
Distribution. — Monterey and Santa Cruz, California. 
PINNOTHERES PUGETTENSIS Holmes. 
Distribution, — Puget Sound, in branchial cavity of a Halocynthia. 
Genus Raphonotus Rathbun 
(= FABIA Dana). 
Raphonotus RATHBUN, Proc. Biol. Soc. Washington, XI, 166, 1897. 
