374 
ZOOLOGY. 
Family MELANIADtE- 
MELANIA PLICIFERA. 
Melania plicifera, Lea, on fresh water and land shells in Trans. Phil. Soc. of Phil., pi. xxiii, f. 90. — Carpenter's 
Report, p. 325. 
ITab. — Very common in rivers of Washington Territory. — J. G. C. 
MELANIA SILICULA. 
Mdania silkula, Gould, Proceed. Bost. Soc. II, p. 224,1847; ExpeJ, Shells, 46. Carp. Rep., p. 325 —Idem, Expl. 
Exped. Shells, p. 141, fig. 164. 
Hah. — Rivers of Washington Territory, Dr. Cooper ; Nisqually and Oregon, Dr. Gould. 
MELANIA SHORTAENSIS. 
Melania Shortamsis, Lea, in Uteris. 
Ilab. — Willopah river. Dr. Cooper. 
AMNICOLA NUTTALLIANA. 
Paludina Nitttalliana, Lea, in Philos. Trans, pi. xxvi, f. 81). 
Hah. — Columbia river. Dr. Cooper. 
AMNICOLA SEMINALIS. 
Pa/arfina seminaZts, Hinds, Zool. Sulph. p 59, pi. 16, f. 22. 
Bithinia seminalis, Carp. Rep. p. 326. 
Hab. — Upper California, Dr. Trask. 
Family TU E R I TE LL ID ^ • 
TURRITELLA ESCHRICHTIL 
Turritella eschrichtii, Middend. Beitrage, II, p. 68, pi. xi. f. 1 ; Carp. Rep. 325. 
Hab. — Puget Sound, Dr. Suckley, G. Gibbs, esq. ; Arctic Sea, Middendorff. 
A few specimens sent from Puget Sound agree in all respects with the figure and description 
given of this species by Middendorff, as cited above. 
Family LIT TO EINID . 
LITTORINA RUDIS. 
Littorinarudis, Govld, Stimpson, Shells of New England. 
LiUorina Barclayan ? Hinds. 
Hab. — Shoalwater bay to Straits of Fuca, Dr. Cooper, Dr. Suckley, G. Gibbs, esq. 
Very abundant on the northwest coast, where it presents the same varied appearances as our 
eastern shell. 
LITTORINA SCUTULATA. 
LiUorina scutulata, Gould, Proceed. Bost. Soc. Ill, p. 83, March, 1849, Exped. Shells, p. 83. — Idem, U. S. Expl. 
Exped. Moll. & Shells, p. 200, fig. 241.— Carp. Rep. p. 326. 
Hab. — Puget Sound, Dr. Cooper ; Puget Sound, Oregon, Dr. Pickering. 
On rocks from the head of Puget Sound to the Straits of Fuca, having habits similar to those 
of L. Ttidis. — J. G. C. 
LITTORINA PLANAXIS. 
Littorina planaxis,TSvTC. Sup. Philipp. Abbaldingen T. II, p. 201; Litt. Pt. IV, p. 16. Carp. Report, p. 326. 
i/al .— San Luis Obispo, Dr. intisell. 
