PUGET SOUND CRUSTACEA. 261 



ISOPODA. 



Livoneca vulgaris Stimpson. 

 Cirolana californica Hansen. (?) 

 Limnoria lignorum (Rathke). 

 Idotea Wossnessenskii Brandt. 



" resecata Stimpson. 

 Ligia Pallasii Brandt. 

 Pseudione Giardi n. sp. 

 Argeia sp. (?) 

 Phyllodurus abdominalis Stimpson. 



AMPHIPODA. 



Hyperia galba Mont. 



Orchestoidea californiana (Brandt). 



Polycheria Osborni n. sp. 



Maera dubia n. sp. 



Amphithoe humeralis Stimpson. 



Amphithoe sp. (?) 



COPEPODA. 

 Cecrops Latreillei Leach. 



CIRRIPEDIA. 



PoUicipes polymerus Sowersby. 

 Coronula diadema (L.). 



RHIZOOEPHALA. 



Sylon sp. 



The following additional species occurred in Professor 

 D'Arcy Thompson's collections : 

 Raphonotus (=Fabia) subquadratus Dana. 

 Paguristes turgidus Stimpson. 

 Echinocerus cibarius White. 

 Phyllolithodes papillosus Brandt. 

 Callianassa californiensis Dana. 



Annals X. Y. Acad. Sci., XI, August 13, 1898 — 18. 



