32 
Natural History 
The following are the principal additions to the molluscan fauna of British 
Columbia made by various collectors since Mr. Whiteaves’ last report. 
Xylophaga dorsalis , Turton; Glycimeris generosa , Old.; Saxicava Nor- 
vegica, Spengler ; Thracia Behringi , Dali ; Tellina Sp., (young either of 
T. Gouldii , Cpr., or of T. inflatula , Dali, according to Mr. Dali) (Edalina 
subdiaphana, Cpr.; Standella planulata , Corn*.; Cardium oentifilosuin, Cpr.; 
Modiolaria Sp. Nov. (Mr. Dali suggests that this species be named after its 
discoverer, Mr. G. W. Taylor); Yoldialimatula , Say.; Diaphana debilis, Gld.; 
Tornatina inculta , Gld.; Tornatina harpa, Dali ; Tornatina cerealis , Gld.; 
T. puncta coelata , Cpr.; Lepidopleurus , Sp.; Puncturella Cooperi , Cpr.; 
Leptothyra bacula , Cpr.; Alvania castanea, Moller; Bittium armillatum , 
Cpr.; Cancellaria Unalashkensis, Dali; Solanella varicosa, Mighels ; 
Hydrobia Californica, Tryon ; Drillia cancellata, Cpr.; Bela exarata, Moller ; 
Odostomia gravida. Gld.; Turbonilla chocolata, Cpr.; Turbonilla Lordi , E. 
A. Smith; Opalid ? planicosta , Cpr.; Buccinum cyaneum , Brug., variety 
J/ drchianum, Fischer ; Mohnia Friclei , Dali ; Chrysodomus fornieatus , 
Gmelin ; Chrysodomus phceniceus, Dali ; Chrysodomus Kennicotti, Dali. 
With respect to classification. Dr. P. P. Carpenter’s arrangement has been 
followed throughout, with such modifications of nomenclature as have been 
made by Mr. W. H. Dali and are reported in Mrs. M. Burton Williamson’s 
“ Annotated List of the Shells of San Pedro Bay and Vicinity,” published in 
the Proceedings of the United States National Museum, Vol. XV, 1892. 
It is to be hoped that the large amount of new material lately acquired by 
the Str. Albatross, of the United States Fish Commission, on the north-west 
coast of America may soon be fully reported upon, and that Mr. Dali and 
his associates at the Smithsonian Institution may have an early opportunity 
of extending to the Pacific shores the advantage of such careful investiga- 
tions as have added so much to the knowledge of the mollusca of the At- 
lantic states. 
Meantime the following list of authorities for the majority of the species 
on the list may be of assistance to those who have access to large libraries. 
For those who have not, the Smithsonian reprint above mentioned will be 
found to be the most useful book to refer to. Nearly all the references 
have been verified in the libraries of the British Museum and the Natural 
History Museum at South Kensington; at the latter with the kind assist- 
ance of Mr. E. A. Smith, Curator in charge of the concliological collections. 
1. Aurivillius and Leche. Ofvers. ofv. de af Vega.-Expedit., 2 parts. 
Stockholm, 1883 87. 
1a. Adams, A. 
Proc. Zool. Soc., 1854. 
2. Baird, W. 
Proc. Zool. Soc., 1863. 
Descriptions of new shells, collected by Lord, &c., in British Columbia. 
