DECAPODS 185 



Genus Xanthlas 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 vii, fig. 2. 



Distribution. San Diego, California, and Gulf of California; 10-22 

 fathoms. Bay of St. Elena, Ecuador (Nobili). 



Genus Heteractaea Lockington. 



HETERACT^A LUNATA (Milne Edwards and Lucas). 



Pilumnus lunatus MILNE EDWARDS and LUCAS, D'Orbigny's Voy. 1'Amer. 



Merid., Crust., 20, 1843, pi. ix, fig. 2, 1847. 

 Heteractaa lunata KiNGSLEY, Proc. Acad. Nat. Sci. Phila., 1879,396 (1880). 



Distribution. San Diego, California (Faxon) to Chile. 



Family PINNOTHERIDJB.. 

 Genus Pinnotheres Latreille. 

 PINNOTHERESJNUDUS 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. 



