TYPE SPECIMENS OF INVERTEBRATE FOSSILS. 401 



147040. Mesalia pleboides Vaughan. Cotypes. 



Claibornian (Eocene). Hammetts Branch, near Mount 

 Lebanon, Louisiana. 



Vaughan, Bull. No. 142, U. S. Geol. Surv., 1897, p. 36, pi. 3, figs. 

 4, 5, 6. 



164877. Mesodesma alaskensis Dall. Holotype. 



Eocene. Chichagof Cove and West Cove, Alaska. 



Dall, Harriman Alaska Exped., IV, 1904, p. 108, pi. 9, fig. 1. 



12509. Mesodesma bishopi White. Cotypes. 



Eocene. Bijou Basin, forty miles east of Denver, Colorado. 

 White, Powell's Rept. Geol. Uinta Mountains, 1876, p. 128. 



[The locality given is erroneous, and the true locality is unknown. 

 See Eleventh Ann. Rept. U. S. Geol. Surv. Terr., pp. 191, 192. — 

 T. W. Stanton.] 



158324. Mesomorpha duncani Vaughan. Cotypes. 



Midway (Eocene). Prairie Creek, Alabama. 



Vaughan, Mon. XXXIX, U. S. Geol. Surv., 1900, p. 159, pi. 18, 

 figs. 8-10. 



15399. Mesonacis vermontana (Hall). Plastotypes. 



Lower Cambrian. Parker's quarry, Georgia, Vermont. 



Walcott, Amer. Journ. Sci. (3), XXIX, 1885, p. 329, text figs. I, 2; 

 Bull. No. 30, U. S. Geol. Surv., 1886, p. 158, pi. 24, figs. i-ib. 



See Olenellus (Mesonacis) vermontana. 



22915. Mesostoma occidentalis Stanton. Cotypes. 



Colorado (Cret.). Malachite, Huerfano Park., Colorado. 



Stanton, Bull. No. 106, U. S. Geol. Surv., 1893, p. 139, pi. 30, 

 figs. 7, 8. 



43182. Mesotrypa angularis Ulrich and Bassler. Holotype and 



figured sections. 

 Trenton (Ord.). Frankfort, Kentucky. 



Ulrich and Bassler, Smithsonian Misc. Coll., Quart., XL/VII, rgo4, 

 p. 23, pi. 7, figs. 7-9. 



43544. Mesotrypa discoidea Ulrich. Holotype and figured sections. 

 Trenton (Ord.). Goodhue County, Minnesota. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. I, 

 1893, p. 260, fig. 16. 



44056. Mesotrypa echinata Ulrich and Bassler. Holotype and 



figured sections. 

 Trenton (Ord.). Nashville, Tennessee. 



Ulrich and Bassler, Smith. Misc. Coll., Quart., XL/VII, 1904, p. 22, 

 pi. 7, figs. 4-6. 



43542. Mesotrypa infida Ulrich. Cotypes and figured sections. 



43543. Black River (Ord.). Fountain and Minneapolis, Minn. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. I, 

 1893, p. 258, pi. 17, figs. 1-8 



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