220 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



12299. Dentalium gracile Hall and Meek Plesiotype. 



P'ort Pierre (Cret.). Cheyenne River, near Rapid Creek, 

 Black Hills, South Dakota. 



Whitfield, Rept. Geol. and Resources Black Hills Dakota, iSSu, 

 ji. 43.S, p\. 12, fij^. 26. 



4270. Dentalium kornooksense Meek. Holotype. 



Nanaimo (Cret. ). Nanainio?, Vancouver Island. 



Meek, Bull. U. S. Geol. and Geogr. vSurv. Terr., II, 1876, p. 364, 

 pi. 3, fig. 6. 



= Dentalium nanainioense. 



4270. Dentalium nanaimoensis Meek. Holotype. 



Nanaimo (Cret.). Nanaimo, Vancouver Island. 

 Meek, Trans. Albany Inst., IV, 1S57, p. 44. 

 See Dentalium komooksense. 



311. Dentalium pauperculum Meek and Hayden. Holotype. 



Fox Hills (Cret.). Moreau River, South Dakota. 



Meek and Hayden, Proc. Acad. Nat. Sci. Phila. , for 1S60, p. 178. 

 = Bntalis? paupercula. 



1 12742. Dentalium prisma Dall. Holotype. 



Pliocene. Caloosahatchie River, near Fort Thompson, 

 Florida. 



Dall, Trans. Wagner PVee Inst. Sci. Phila., Ill, I't. II, 1892, 

 p. 442, ])1. 15', fig. 5. 



677. Dentalium ? subquadratum Meek. Cotypes. 



Jura.ssic. Red Buttes, North Platte, Wj^oming. 



Meek and Hayden, Proc. Acad. Nat. vSci. Phila., t86o, p. 311; Pal. 

 U])]). Mo., vSniithsonian Cont. to Knowl., No. 172, XIV, 1864, 

 ]). Ill, text fig. — Meek, Rept. Expl. Great Basin, Utah, Simp- 

 .son, 1876, p. 357, pi. 3, figs. la-c. 



Depranella. See Drepanella. 



2435S. Derbya correana Derby. Ple.siotypes. 



Upper Carl)oniferous. Itaituba, Brazil. 



Hall and Clarke, Nat. Hist. New Vork, Pal. VIII, Pt. I, 1892, 

 1)1. 20, figs. 10, I 1. 



= Orthotetes correana. 



45561. Derbya kaskaskiensis McChesney. Plesiotype. 



Chester (Mi.ss.). One mile west of Monti^oniery vSwitch, 

 Caldwell Count3s Kentucky. • 



Hall and Clarke, Nat. Hist. New Vork, Pal. \-III, Pt. I, 1892, 

 pi. I iB, fig. 6. 



= Orthotetes kaska.skiensis. 



23087. Desmoceras californicum .Stanton. Cotypes. 



Knoxville ( Lower Cret. ). Three miles north of Paskenta, 

 California. 



Stanton, P.ull. No. 133, U. S. Geol. Surv., 1895 ( I'el)., 1896), p. 76, 

 pi. 15, figs. 6, 7. 



