34 ROYAL SOCIF/rY OF CANADA 



Mv. E. A. Smith (in Ann. Mag. Nat. Hist., series 5, vol. vi., p. 289 

 [1880]) described Yoldia Vancouverensis, n. sp., from a specimen taken 

 near Victoria. Judging by the description, Vancouverensis must be 

 placed in the synonymj^ of Y. amygdalea, 



VENERICARDIA, Lamarck. 

 41. Vbnericardia ventricosa, Gould, sp. 



(kndUd »Y;vi<r/co.sa, Gould, Proc. Bost. Soc. Nat. Hist., vol. iii., \). 27H (July, 18.50); 

 and IT. S. Expl. Exped., Molluscu, p. 417, fig.s. 532,532a (1852). 



Very common, occurring with Nucula cnsirensis in all localities yet 

 examined. Our shells are certainly the V. ventricosa of (lould, but this 

 H|>ecies was considered by Carpenter to be a variety onl}- of V. horealis, 

 Conrad (Amer. Mar. Conch.), and this last is consequently the name 

 usually given in our lists. Lately, however, Dr. Stearns' has figured and 

 comjiared the two forms, and has pronounced them to be distinct. 



Mr. Whiteaves (in Eept. Prog. Geo. Surv. Canada, 1878-79) speaks 

 of both forms as occurring in Dr. Dawson's Queen Charlotte Islands col- 

 lection. All the local specimens I have seen are unmistakably ventricosa. 



CARDITAMEEA, Conrad. 

 42. Carditamera sdbquadhata, Carpenter, sp. 



Laztirid sulxjui((lrofa, Cpr., Rept. Brit. As.soc, 1S63, p. ()42 (August, lK(i4) ; and 

 Ann. Mag. Nat. Hist., series 3, vol. xv., p. 178 (March, 18fi5). 



This shell was tirst recorded from these waters b}^ Carpenter on the 

 strength of a single valve in Swan's collection ; exact locality not stated. 

 Single valves are not uncommon among shells brought by the Indians 

 from the western and northern coasts, and I have myself found valves 

 on the beaches near Victoria. So far, however, the species has not been 

 found here alive. 



MIODON", Carpenter. 



43. MioDON PROLONGATUS, Carpenter. 



Kept. Brit. Assoc, 18(53, p. (542 (August, 18(i4); and Ann. Mag. Nat. Hist., series 3, 

 vol. xiv., p. 424 (December, 18ti4). 



This is not a common shell with us. A few specimens have been 

 found at Victoria, Departure Bay, and at Salt Spring Island, in some 

 instances in sand between tide marks, and in others in deeper water. 



Further to the north it appears to be more plentiful, for Mr. 



' "Scientific Results of Explorations by the United States Fish Commission 

 steamer Albatross. XVII. Descriptions of new West American Land, Fresh- 

 water and Miirine Shells, etc." Proc. U. S. Nat. Museum, vol. xiii.. no. 813 (1890). 



