■414 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



1 15469. Monodonta basilea Guppy. Holotype. 



Oligocene. Jamaica, British West Indies. 



Guppy, Geol. Mag., London, Dec, II, I, 1874, p. 434, pi. 16, fig. 2. 

 = Modulus basileus. 



12364. Monopleura marcida White. Cotypes. 



Edwards (Cret. ). Near Austin, Texas. 



White, Bull. No. 4, T^. S. Geol. vSurv., 1884, p. 8, pis. 3, 4. 



12365. Monopleura pinguiscula White. Cot^-pes. 



Edwards (Cret. ). Near Austin, Texas. 



White, Bull. No. 4, V. S. Geol. Surv., 1S84, p. 8, pi. 5. 



35313. Monopteria alata Beede. Plesiotype. 



Rico (Upper Carb.). vScotch Creek, Rico quadrangle, 

 Colorado. 

 Girty, Prof. Pap. No. 16, U. vS. Geol. vSurv., 1903, p. 431, pi. 9, fig. 3. 



15595. Monopteria marian White. Cotypes. 



Upper Carboniferous. Camp Apache, Navajo County, 

 Arizona. 



White, Prelim. Rept. U. vS. Geogr. Surv. W. looth Merid., 1874, 

 p. 22; Rept. U. S. Geogr. Surv. W. looth Merid., IV, Pt. I, 



1877. P- I5i» pl- II) fig^- 4a-4c. 



3958. Monotis hawni Meek and Hayden. Cotypes. 



Permian. Smoky Hill River, Kansas. 



Meek and Hayden, Tran.s. Albany Inst., IV, 1858, p. 76. 



= Pseudomonotis hawni. 

 See Euniicrotis hawni. 



30192. Monotis semiplicata Hyatt. Cotypes. 



Tria.ssic. American Canyon, California. 

 Hyatt, Bull. Geol. vSoc. Amer.,V, 1894, p. 414. 



30193. Monotis symmetrica Hyatt. Cotypes. 



Triassic. American Canyon, California. 

 HyaU, Bull. Geol. vSoc. Anier., V, 1894, p. 414. 



43556. Monotrypa ( Chaetetes? ) cumulata Ulrich. Holotype and 



figured sections. 

 Trenton (Ord.). Goodhue County, Minn. 



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

 1893, p. 307, pi. 27, figs. 26, 27. 



43553. Monotrypa intabulata Ulrich. Holotype and figured 



.sections. 

 Trenton (Ord.). Goodhue County, Minn. 



Ulrich, (^eol. and Nat. Hist. Surv. Minn., Final Rept., HI, Pt. I, 

 1893. P- 305, fig- 20. 



