W. H. Dall — Fossils of the Olympic Peninsula. 311 



Chione staleyi Gabb. 



Dosinia staleyi Gabb, Pal. Cal., vol. 2, p. 24, 1866. 

 Tapes staleyi Gabb, Pal. Cal., vol. 2, part 2, pi. 7, fig. 42, 1868 ; 

 Reagan, p. 209, pi. 4, fig. 38 c. only, 1909. 

 The specimens figured as number 38 a. and 38 b., are defective 

 individuals of Chione securis Shumard. 



Macoma inquinata Deshayes. 



Macoma inquinata (Deshayes) Reagan, p. 209, pi. 4, fig. 39, 1902. 

 Compared with specimens of the recent Macoma inquinata var. 

 arnheimi Dall, this rather imperfect individual agrees fairly 

 well. It is shorter and less acuminate behind than the typical 

 inquinata. 



Tagelus sp. 



Tagelus calif ornicus (Conrad) Reagan, p. 211, pi. 4, fig. 40, 1909. 

 The type is a fragment probably belonging to the genus, but 

 insufficient to identify specifically. 



Mactra (Spisula 1) precursor Dall. 



Mactra calif omica (Conrad) Reagan, p. 211, pi. 4, fig. 41, 1909. 

 This is the internal cast of a large species whose form is analo- 

 gous to that of M. nasuta Gould, though not identical. It is 

 numerous in the duplicate material, but has little in common with 

 the M. calif omica which is a small species. 



Mulinia olympica n. nom. 



Mactra exoleta (Gray) Reagan, p. 212, pi. 4, figs. 42 a., 1909. 

 Mactra hemphilli (Dall) Reagan, p. 212, pi. 4, fig. 43, 1909. 



Though the hinge is not visible, this appears to be a small 

 Mulinia, in no way related to M . exoleta. The hinge figured at 

 42 b., belongs to a different species. Figure 43 depicts a slightly 

 larger specimen. It has no resemblance to the recent M. hem- 

 philli or exoleta. 



Mactra (Spisula) albaria Conrad. 



Mactra (Spisula) falcata (Gould) Reagan, p. 213, pi. 5, fig. 44, 

 1909. 

 This is the only typical specimen of M. albaria among Reagan's 

 types. The specimens doubtfully to M. falcata on p. 214, and 

 figure on. plate 5, figures 45 a. to 45 c, are defective immature 

 specimens of M. arnoldi. 



