400 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



35158. Menophyllum (?) excavatum Girty. Cotypes. 



Madison (Miss.). Crowfoot Ridge, Gallatin Range, Yel- 

 lowstone National Park. 



Girty, Mon. XXXII, Pt. II, U. vS. Geol. Surv., 1899, p. 511, pi. 67, 

 figs. la, lb, ic, id, le, if. 



35370. Menophyllum ulrichanum Girty. Cotypes. 



3537 1- Ouray (Miss.). Cascade Creek, Engineer Mountain 



quadrangle, and Canyon Creek, Needle Mountain 

 quadrangle, Colorado. 



Girty, Prof. Pap. No. 16, U. vS. Geol. Surv., 1903, p. 271, pi. i, 

 figs. I, 2. 



1842. Meretrix californiana Conrad. Holotype. 



Eocene. Canada de las Uvas, California. 



Conrad, Rept. Expl. and Surv. R. R. Miss. Riv. to Pacific Ocean, 

 V. 1856, p. 320, pi. 2, fig. 4. 



107396. Meretrix ( Callista ) pittsburgensis Dall. Cotypes. 



Tejon (Eocene). Pitt.sburg, Oregon. 



Dall, Trans. Wagner Free Inst. vSci. Phila., Ill, Pt. V, 1900, pi. 

 36, fig. 22; pi. 43, fig. 15. 



= Macrocalli.sta pittsburgensis. 



3412 1. Meristella arcuata Hall. Plesiotype. 



Helderbergian (Lower Dev. ). Atoka quadrangle, Indian 

 Territory. 



Girty, Nineteenth Ann. Rept. U. S. Geol. vSurv., 1900, p. 564, pi. 

 71, figs. 2a-2C. 



34120. Meristella arcuata atoka Girty. Cotypes. 



Helderbergian (Lower Dev.). Atoka quadrangle, Indian 

 Territory. 



Girty, Nineteenth Ann. Rept. I^. vS. Geol. Surv., 1900, p. 567, pi. 

 71, figs. la-if. 



13842. Meristella ( \A^hitfieldia) nasuta (Conrad). Plesiotype. 



Middle Devonian. Lone Mountain, near Eureka, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 148, pi. 3, figs. 

 8-8b. 



= Meristella nastita. 



7899. Mesalia ? kansasensis Meek. Holotype and paratypes. 



Mentor (Cret.). Twelve miles southwest of Salina, 

 Kan.sas. 



Meek, Rept. IT. S. Geol. Surv. Terr., IX, 1876, p. 333, pi. 2, figs. 

 7a, 7b. 



See Turritella kansasensis. 



20116. Mesalia obsuta White. Cotypes. 



Chico (Cret.). Near Pences Ranch, Butte County, Cali- 

 fornia. 



Wliite, Bull. No, 51, IT, S. Geol. Surv., 18S9, p. 20, pi. 4, figs. 6, 7. 



