ZOOLOGY. 
389 
Order loUlUlJA, Equal-footed Crustaceans. 
IDOTAEA WOSSNESSENSKII, Brandt. 
Dark-green Idotaea. 
ldotaea Wossnessenskii, Beamdt, Sibirische Reise, Zool. I, p 146.— Stimpson, Journ. Boston Soc. N. H. YI, (64.) 
I. hirtipes, Dana, U. S. Expl. Exped. Crust. II, p. 704, pi. XLVI, fig. 6. 
I. oregonensis, Dana, Proc. Acad. N. S. Phil. 1854, YII, p. 175. 
A very common animal, about an inch in length, and of a dark green color, in form resembling 
the common “saw-bugs.” Found on sea-weed among rocks, between high water and low tide 
marks, Shoalwater bay. 
SPHAEROMA OREGONENSIS, Dana. 
Oregon Water Pill-bug. 
Sphaeroma oregonensis, Dana, U. S. Expl. Exped. Crust. II, 778 ; pi. LII, fig. 4 .—Ib. Proc. Acad. N. S. Philad. VII, 
p. 177.— Stimpson, Journ. Bost. Soc. IT. H. YI, (69.) 
A common species found under stones at low-water mark in bays, &c. It looks very much 
like the pill-bug or saw-bug of 'the land, (Oniscus ,) and like it rolls itself into a ball when 
disturbed. 
Numerous other Crustacea are found on the coast of the Territory, but none of them fell 
under my observation. For a complete enumeration of them, with synonomy and description 
of new species, the reader is referred to Stimpson’s article in Journ. Bost. Soc., vol. YI. 
LIST OF CRUSTACEA OBTAINED AT PUGET SOUND BY DR. SUCKLEY. 
Descriptions of the species are contained in the Report on the Crustacea and Echinodermata 
of the Pacific shores of North America, by William Stimpson, extracted from the Journal of 
the Boston Society of Natural History. 
Cancer magister , Dana. 
Cancer gracilis , Dana. 
Pseudograpsus oregonensis , Dana. 
Paguristes turgidus, Stimpson. 
Callianassa calif orniensis, Dana. 
Callianassa longimana, Stimpson. 
Astacus leniusculus , Dana. 
Crangon franciscorum , Stimpson. 
Pandalus danae, Stimpson. .. 
y Obtained by Captain Murden. 
Idotaea resecata, Stimpson. ) 
Lygia dilatata , Stimpson. 
Orchestia calif orniensis , Dana. 
