FROM THE COAST OK BRITISH COLCMBIA. 121 



CRYPTODON SERIOATT-S, Carpenter : (Not " serricatus.") Quatsino Sound at station No. 20, 

 several small but living spe.-imens. In a letter to the writer, Mr. Ball says ' the 

 .specific name ol' this shell is misspelled in l>r. Carpenter's last report, but the 

 mistake was corrected by him in 



/ LuciN,v FILOSA, Stiiiipson. Quatsino Sound at station No. 19, one small but living shell; 

 and at station No. 20, a large and perfectly fresh single valve. 



LrcipfA TENUISOUI.PTA, Carpenter. Strait of Georgia at station No. 2, one living speci- 

 men ; and Quatsino Sound at station No. 19, abundant, living. 



Vi:\KKK'u;i>iA HOIJKALIS. Conrad. Living, but usually of small size, at the following 

 localities : Strait of Georgia at station No. 5, Johnstone Strait at station No. 10, 

 Queen Charlotte Sound at stations Nos. 12, 14, 15, 17 and 18; and Quatsino Sound 

 at station No. 19. A few dead valves of this shell were dredged at station No. 1, 

 in Discovery Passage. 



ASTAKTK r.\ DATA? Gould, var. Strait of Georgia at station No. 5, two living and full- 

 grown specimens ; Discovery Passage at station No. 7, two living specimens and 

 several single valves, and Johustone Strait at station No. 10, one living and 

 unusually large specimen. 



The shells from station No. 5 can scarcely be separated from examples of a 

 variety of A. undata dredged by the writer, in 1873, between Pictou Island and Cape 

 Bear, P.E.L ; while those from stations No. 7 and 10 are more transversely elon- 

 gated and more like A. elliptica in shape, but their ribs are fewer (some fourteen or 

 iil'ieen in number) and more prominent, and shew little if any tendency to become 

 obsolete near the ventral margin. A single dead and immature valve of an Astarte, 

 dredged by Dr. G. M. Dawsou off Metlakatla in 1878, and identified by the writer, 

 with doubt, as possibly the A. semixulmta of Leach, in the Report of Progress of the 

 Geological Survey of 1878-79 (p. 197 B) is certainly identical with the shells here 

 provisionally referred to A. unduta. 



/ASTARTE ESQUIMALTI, Baird. Strait of Georgia at station No. 5, two living specimens ; 

 Discovery Passage at station No. 7, abundant, alive ; Johnstone Strait at station 

 No. 10, two living specimens ; and Queen Charlotte Sound at station No. 12, four 

 living shells, and at station No. 14, abundant and alive. In the specimens from 

 these localities the irregularity of the concentric ribs is very slight and scarcely 

 appreciable without the aid of a lens. &<&&.<? 



CARHIUM iii.ANDUM, Gould. Strait of Georgia at station No. 5, Discovery Passage at 



station No. 7, Johnstone Strait at station No. 10, and Queen Charlotte Sound at 



stations Nos. 12, 13, 16 and 17. A few living specimens of all sizes from each of 

 these localities. 



, CARDIUM NUTTALLI, Conrad. Common at or near low water mark throughout the district. 



SQUALIDUS, Deshayes. Abundant at low tide round the whole coast. A few 

 small specimens of the present species were dredged in Discovery Passage at station 

 No. 7, and in Queen Charlotte Sound at stations Nos. 12 and 16. 



Sec. IV., 1886. 16. 



