APPENDIX. 359 
ovate. In consequence of its having been in the crop 
of a duck, the surface of the shell is somewhat eroded, 
and the apex is broken off. Long. 4 inch.—Hab. 
Esquimalt Harbour. (Brit. Mus.)—‘ Taken from the 
crop of a pin-tail duck. —J. K. Lord. 
LITTORINIDA. 
Littorina scutulata. (Gould.) Esquimalt Harbour, between tide marks; 
abundant. 
— sitkana. (Phil.) Esquimalt Harbour, between tide marks; abundant. 
Amnicola Hindsiit. (Baird: Nov. Sp.) 
Testa retusa, solidula, viridi-olivacea, minute lon- 
gitudinaliter undulato-striata, transversim obscure li- 
rata, apice erosa; anfractibus quatuor, ultimo prope 
medium retuse-carinato, ad suturas canaliculato, suturis 
impressis; columella albida; apertura cerulescente. 
This species resembles somewhat the Paludina 
seminalis of Hinds, but it differs in contour, being 
bluntly carinate round the middle of the last whirl, and 
in being channeled round the suture. The surface of 
the shell is distinctly marked with numerous flexuous 
striz, the lines of growth, and near the sutures is rather 
indistinctly marked with circular strie. I have named 
it after a good conchologist, who has described several 
shells from the West Coast of America, and who ob- 
tained the specimens of his shell from the Rio Sacra- 
mento, California. Long., largest specimens, nearly 
3% inch; lat. rather more than 4 inch.—Hab. River 
Kootanie, and stream at the foot of the Rocky Moun- 
tains, British Columbia. (Brit. Mus.) 
