102 THE ROYAL SOCIETY OF CANADA 
MoLLUSCA. 
ALLEN, JOHN A. 
Lymnea auricularia, Linné in Canada. 
The Nautilus, September, 1911, vol. xxv, No. 5, p. 60. 
Records the finding of this species in a chain of pools on the beach of 
Lake Erie, at Kingsville, Ontario. 
Baker, FRANK C. 
The Lymnæidæ of North and Middle America, recent and fossil. 
Chicago Academy of Sciences, Special Publication No. 3, Feb. 15, 1911, 
pp. i-xvi + 1-539, plates I-LVIII, with bibliography, and 51 maps, 
in text, shewing distribution. 
Mollusks of Wellesley island and vicinity, St. Lawrence river. 
The Nautilus, October, 1911, vol. xxv, No. 6. pp. 66-67. 
In this paper the author lists five species of Pelecypoda and thirty-one 
of Gastropoda. 
BARTSCH, PAUL. 
The recent and fossil Mollusks of the genus Cerithiopsis from the west coast 
of America. 
Proceedings of the United States National Museum, vol. 40, May 8, 
1911, pp. 327-367, plates 36-41. 
With the species described is Cerithiopsis stephensæ, Bartsch, from 
Victoria, Vancouver island, British Columbia. The term “west coast 
of America” in the above title refers to the western coast of North 
America. 
The recent and fossil Mollusks of the genus Bittium from the west coast 
of America. 
Proceedings of the United States National Museum, vol. 40, May 12, 
1911, pp. 383-414, plates 51-58. 
Includes Bittiwm (Semibittium) vancouverense, Dall and Bartsch, and 
B. attenuatum boreale, new subspecies, both from Barclay so nd, 
Vancouver island. 
The recent and fossil Mollusks of the genus Alvania from the west coast of 
America. 
Proceedings of the United States National Museum, vol. 41, Nov. 15, 
1911, pp. 333-362, plates 29-32. 
Among the species described or referred to is Alvania compacta, 
Carpenter, from British Columbian localities as follows:—Saturnia 
island; Victoria, Vancouver island; and Barclay sound, Vancouver 
island. 
Ciapp, Gro. H. 
An additional record for Helix hortensis, Mill. 
The Nautilus, December, 1911, vol. xxv, No. 8, p. 94. 
The specimens of this species were collected by Dr. Perey E. Raymond 
at Neuville, Pointe aux Trembles, Portneuf county, about 22 miles 
west of Quebec. 
