48 ROYAL SOCIETY OF CANADA 
dredged except when very young or when dead. The dead shells in 
greater or less number have been found at Victoria, Departure Bay, 
Comox and Clayoquot. 
SPISULA, Gray. 
100. SPISULA FALCATA, Gould, sp. 
Mactra falcata, Gould, Proc. Bost. Soc. Nat. Hist., vol. iii., p. 216 (May, 1850); 
and U.S. Expl. Exped., Mollusca, p. 393, fig. 506-506b (1852). 
This species has been found dead by Dr. Dawson at the Queen 
Charlotte Islands, and by Dr. Newcombe at Comox and Victoria. 
In Carpenter’s “ Supplementary Report ” it is given as from Puget 
Sound (Kennerley) and Vancouver Island (Swan). I have not myself 
as yet succeeded in finding specimens. 
101. SPISULA PLANULATA, Conrad, sp. 
Mactra planulata, Conr., Journ. Acad. Nat. Sci. Phila., vol. vii., pt. 2, p. 240 (1837). 
Of this species I have dredged numerous young specimens in 
Departure Bay. Dr. Newcombe has found it at Clayoquot, and Mr. 
Harvey at Comox. 
Dr. Dall, finding the nomenclature of the Pacific coast Mactride in 
a very unsatisfactory condition, has been lately working up the subject. 
A first paper by him, entitled, “ On the Species of Mactra from Cali- 
fornia,” has appeared in the “ Nautilus” for April of the present year 
and should be consulted for notes on our species.! 
DARINA, Gray. 
102. DARINA DECLIVIS, Carpenter. 
Rept. Brit. Assoc., 1863, p. 637 (August, 1864); and Proc. Zool. Soc. London, 
1865, p. 203. 
A single shell, measuring 1°77 x ‘85 x ‘34 inches, was found at 

1 Since the above was written Dr. Dall has published several other papers on 
North American Mactride. In one of these entitled ‘ Synopsis of the Mactridæ of 
Northwest America, South to Panama,” published in the ‘ Nautilus” for August, 
1894, Dr. Dall names the northern species as follows :- 
Mactra (Mactrotoma) Californica, Conrad. Fuca Strait to Central America. 
Spisula (Hemimactra), polynyma, Stimpson, var. Alaskana, Dall. Icy Cape to 
Neeah Bay. 
Spisula (Hemimactra catilliformis, Conrad. Neeah Bay to San Diego. 
Spisula (Hemimactra) planulata, Conrad. Monterey to San Diego. 
Spisula (Symmorphomactra) falcata, Gould. Comox to San Pedro, Cal. 
I have not yet found specimens of the three first named species among our Van- 
couver shells, nor am I very confident as to the correctness of the identification of 
the specimens I have recorded above as S. planulata. 
