TYPE SPECIMENS OF INVERTEBRATE FOSSILS. 411 



17292. Modiolopsis pogonipensis Walcott. Cotypes. 



17293. Upper Pogonip (Ord. ). Fish Creek Mountains and Lone 



Mountain, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 78, pi. 1, fig. 6; 

 pi. II, fig. 13. 



46343. Modiolopsis pulchella Ulrich. Holotype. 



Trenton (Ord.). West Covington, Kentucky. 

 Ulrich, Amer. Geol., V, 1890, p. 278, figs. 6a-c. 

 =Whiteavesia pulchella. 



46257. Modiolopsis similis Ulrich. Holotype. 



Black River (Ord.). Minneapolis, Minnesota. 



Ulrich, Nineteenth Ann. Rept. Geol. and Nat. Hist. Surv. Minn., 

 1892, p. 225; Geol. and Nat. Hist. Surv. Minn., Final Rept., 

 Ill, Pt. II, 1894, p. 504, pi. 36, figs. 1, 2; pi. 42, fig. 19. 



46258. Modiolopsis simulatrix Ulrich. Holotype. 



Utica (Ord.). Covington, Kentucky. 



Ulrich, Amer. Geol., V, 1890, p. 277, figs. 5a-c. 



46078. Modiolopsis subelliptica Ulrich. Holotype. 



Trenton (Ord.). Near Cannon Falls, Minnesota. 



Ulrich, Nineteenth Ann. Rept. Geol. and Nat. Hist. Surv. Minn., 

 1892, p. 226, fig. 12. 



= Allodesma subellipticum. 



46259. Modiolopsis subparallela Ulrich. Holotype. 



Ivorraine (Ord.). Covington, Kentucky. 

 Ulrich, Amer. Geol., V, 1890, p. 273, figs. 2a-c. 



46676. Modiolopsis subtruncata Ulrich. Holotype. 



Utica (Ord.). Covington, Kentucky. 

 Ulrich, Amer. Geol., V, 1890, p. 270, fig. 7. 



46260. Modiolopsis valida Ulrich. Cotypes. 



Richmond (Ord.). Waynesville, Ohio. 



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

 1894, p. 521, fig. 40b. 



46261. Modiolopsis versaillensis Miller. Plesiotype. 



Richmond (Ord.). Versailles, Indiana. 



Ulrich, Geol. and Nat. Hist. Surv. Minn. , Final Rept. , III, Pt. II, 

 1894, p. 521, fig. 40a. 



164893. Modiolus alaskanus Dall. Holotype. 



Eocene. Chichagof Cove, Alaska. 



Dall, Harriman Alaska Exped., IV, 1904, p. 106, pi. 10, fig. 3. 



154370. Modiolus (Brachydontes) grammatus Dall. Holotype. 



Oligocene. Ballast Point, Tampa, Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. IV, 1898, p. 794, 

 pi. 30, fig. 2. 



