[taylok] marine :mollusca 2S 



I'FvliKCVPODA. 



08TEKA. J.iuiu'. 



(j, OSTREA LURIDA. Cpr. 



Suppl. Kept. Brit. Assoc, 18(58, \). (Uo (Auk-, 18(>4) : find Jo\ini. lU- Coiu-h., vol. 

 xii., p. 187 (April, 1805). 



Common on all the coiists of British Columbia, northward to Queen 

 Charlotte Sound. Br. Dawson found specimens at Malaspiiia Inlet and 

 also (abundantly) at Bvadle}' Lagoon, Blunden Harbour, (^ueen Char- 

 lotte Sound, on the mainland side. This last locality is said by Mr. 

 Whiteaves (Trans. Roy. Soc. Can. iv.. iv., 118) to be the most north- 

 erly locality on record for the species in British Columbia. 



7. OsTREA VlRGINlCA, (rmelin. 



Sy.st. Nat., ed. xiii., vol. i., p. 8880, no. 118 (1788). 



This species was introduced into the '• Victoria Arm " some years 

 ago, and has become to a certain extent naturalized. Prof. Macoun 

 last summer (1893) found a tinely grown adult specimen some little 

 distance from the mouth of the Colquitz liiver. which flows into the 

 Victoria Arm. 



PL AC^UNANOAtl A, Broderip. 



8. Placunanhjiia macroschisma, Deshayes, sp. 



A)iu)ni(i inavroschiHina, Desh., Rev. Zool. Soc. Cuv., p. 859 (Dec, 188S» : Mag: 

 de Zool. (Gnerin's) 1841, pi. xxxiv. 



Very common everywhere between tides, and found also, l)Ut less 

 frequently, in deeper water. 



M}' tinest s]>ecimens are from the rocks at Vesuvius Bay, Salt 

 Spring Island. Very curious forms occur in the V)urrows of Penitella. 



PECTEN, Midler. 



9. Pecten caurinus, (lould. 



Proc Bost. Soc Nat. Hi.st., vol. iii., p. 84.-5 (Dec, 18.51)) ; and U. S. K\])\. Exped., 

 Mollnsca, p. 4.58, tig. .569 .569b (18.52). 



Not very common. This species was not found by Dr. Dawson 

 either at the Queen Charlotte Islands or at the north of Vancouver 

 Island. 



The specimens I have seen have nearly all been from the neighbour- 

 hood of Comox. where Puchardson dredged it in 1874, and where Dr. 

 Newcombe has since taken it. 



