380 



"North-west side'of Hornby Island, J. Richardson, 1875. one left 

 valve. Sucia Islands, J. Richardson, 1874: three imperfect right valves 

 and one left valve, the latter showing the hinge dentition of that valve ; 

 and Dr. C. F. Newcombe, 1894, one large and perfect left valve. 



" These are most probably not identical with the Meretrix lens of Gabb, 

 as the writer once supposed they were. The specimen from Hornby 

 Island is a little more pointed posteriorly than those from the Sucia 

 Islands, but this feature is rather exaggerated in the unsatisfactory 

 figure of this specimen, on Plate 17 " of the second part of this volume. 

 " The specimens from the Sucia Islands have more the general contour 



of a Dosinia than of a Meretrix (or Cytherea)^^ "and 



their hinge dentition is that of Cyprimeria. In the original description 

 of Meretrix lens nothing is said, and nothing appears to be known, about 

 the hinge dentition or other characters of the interior of the shell, but 

 there are at present no valid reasons known to the writer for doubting 

 the correctness of its reference to the genus Meretrix or Cytherea. 



"Mr. Stanton, who has kindly compared the Sucia Island specimens 

 with Meek's types of Cyprimeria 1 tenuis, from Vancouver and Newcastle 

 islands, thinks that the latter species (whose internal characters are still 

 unknown) is much more compressed and has a different outline" (1896, 

 op. cit. supra). 



Additional specimens of C. lens were collected by Dr. Newcombe, in 

 1896, at the Sucia Islands ; by Mr. Harvey, in 1901, ten to twelve miles 

 up the Nanaimo River, V.I., and on Texada Island; and by Mr. T. 

 Bryant, in 1901, six or seven miles north-west of Wellington, V.I. 



Dosinia inflata, Gabb. 



Dosinia inflata, Gabb. 1864. Geol. Surv. Calif., Palseont., vol. i, p. 168, pi. 23, fig. 

 149. 



Sucia Islands, Dr. C. F. Newcombe, 1896 : one remarkably well pre- 

 served but slightly imperfect specimen, that corresponds perfectly with 

 Gabb's description of D, inflata. In this genus it is almost impossible to 

 identify species by descriptions and figures, but Mr. Frank M. Anderson 

 has kindly compared this Sucia Island specimen with the type of D. 

 inflata in the Geological Museum of the University of California, at 

 Berkeley, and thinks that it agrees very well therewith. 



Cypbina Denmanensis. (N. Sp.) 



Shell large, compressed convex, apparently ovately subtriangular in 

 marginal outline, and about one-sixth longer than high. Superior border 



