164 
2371 Gundlachia Hjalmarsoni Pfr. 
Geo. H. Clapp, Nautilus 27:77 records this from the drift of 
the Rio Grande, at Brownsville, Texas. Type locality: Honduras. 
2372 Baker, Frank C.: 
Northern Idaho shells. Nautilus 27:104. 
2373 Ashmunella pilsbryana 
Jas. H. Ferris, Nautilus 27:109, describes this from near Clif- 
ton, Arizona. 
2374 Ferriss, James H.: 
Camps in the Catalinas and White Mts., of Arizona, with de- 
scription of a new American land shell. See above. 
2375 Dall, W. H.: 
Notes on some West American Pectens. Nautilus 27:121. 
Notes on the following, among others, 
2376 Pecten (Euvola) cataractes Dall. Gulf of Cal. 
Synonymy:—P. excavatus Val. 
2377 Pecten hericius Gould. 
Port Althorp, Alaska, to San Diego, Cal. 
2378 Variety albida Dall. 
2379 Pecten islandicus Mull. 
Arctic regions to Strait of Fuca. 
2380 Pecten rubidus Hinds. 
Bering Sea to Cape San Lucas. Same as Hindsii Cpr. 
2381 4Sonorella betheli 
Henderson, Nautilus 27:123. Grand canyon, Arizona (Ells- 
worth Bethel). 
2382 Pisidium huachucanum Pils. 
Nautilus 27:144; Colorado, 7500 ft. elevation (Hand). 
2383 Ostrea iridescens Gray, 1854. 
Gulf of Cal., to Mazatlan. 
2384 Ostrea megodon Hanley, 1845. 
Gulf of Cal., to Peru. West Indies (fossil). 
Synonymy:—oO. gallus Val.—O. Taylori Gabb. 
2385 Ostrea fisheri Dall. 
Based on O. Jacobzea Roch., non L. 
Gulf of Cal. Named in honor of W. J. Fisher. 
2386 Ostrea veatchii Gabb, 1866. 
Large, rather roundly plicated, internally with olive, brown. 
stains and white margin. Baja Cal., Gulf of Cal. Fossil at San 
Diego, Cal., and on Cerros Island. 
2387 Ostrea cumingiana Dunker. 
Synonymy:—O. amara Cpr.—O. angelica Roch. 
Baja Cal., to Panama. 
2388 Variety Mexicana Sby. 
2389 Ostrea palmula Cpr. 
Puget Sound to La Paz, Baja Cal. 
2390 Ostrea serra Dall. 
Baja Cal., to Panama. 
2391 Ostrea columbiensis Hanley. 
Baja Cal., to Peru. 
2392 Ostrea elongata Solander. 1786. 
Synonymy:—O. Virginica Gmel. 1792.—O. rostrata and flori- 
densis Sby.—O. virginiana, canadensis and borealis Lamarck, 
1819. 
2393 Ostrea chilensis Philippi. 
Gulf of Cal., to Chile. 
