374 
ZOOLOGY. 
Family ME L AN I AD M. 
MELANIA PLICIFERA. 
Mtlaniaplieifera, Lea, on fresh water and land shells in Trans. Phil. Soc. of Phil., pi. xxiii, f. 90.— Carpenter's 
Report, p. 325. 
Ilab. —Very common in rivers of Washington Territory.—J. G. C. 
MELANIA SILICULA. 
Melania silicula, Gould, Proceed. Bost. Soc. II, p. 224, 1847 ; Exped. Shells, 46. Carp. Rep., p. 325.— Idem, Expl. 
Exped. Shells, p. 141, fig. 164. 
Eab. —Rivers of Washington Territory, Dr. Cooper; Nisqually and Oregon, Dr. Gould. 
MELANIA SHORTAENSIS. 
Melania shorlaensis, Lea, in literis. 
Eab. —Willopah river, Dr. Cooper. 
AMNICOLA NUTTALLIANA. 
Paludina NvUalliana, Lea, in Philos. Trans, pi. xxvi, f. 89. 
Eab. —Columbia river, Dr. Cooper. 
AMNICOLA SEMINALIS. 
Paludina seminalis, Hinds, Zool. Sulph. p. 59, pi. 16, f. 22. 
Bithinia seminalis, Carp. Rep. p. 326. 
Eab. —Upper California, Dr. Trask. 
Family TURRITELLIDdL 
TURRITELLA ESCHRICHTII. 
Turritella eschrichtii, Middend. Beitrage, II, p. 68, pi. xi, f. 1; Carp. Rep. 325. 
Eab. —Puget Sound, Dr. Suckley, G. Gibbs, esq.; Arctic Sea, Middendorff. 
A few specimens sent from Puget Sound agree in all respects witti the figure and description 
given of this species by Middendorff, as cited above. 
Family LITTORINIDjE. 
LITTORINA RUDIS. 
LUtorina rudis, Gould, Stimpson, Shells of New England. 
LiUorina Barclayan ? Hinds. 
Eab .—Shoal water bay to Straits of Euca, Dr. Cooper, Dr. Suckley, G. Gibbs, esq. 
Yery 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. 
Eab. —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. rudis. —J. G. C. 
LITTORINA PLANAXIS. 
LiUorinaplanaxis, Nutt. Sup. Philipp. Abbildungen T. II, p. 201; Litt. Pt. IV, p. 16. Carp. Report, p. 326. 
Eab. —San Luis Obispo, Dr. Antisell. 
