45fi TllTLLETlN 53, tJNITED STATES NATIONAL MFSEUM. 



1 14305. Olivella eutacta Dall. Holotype. 



Oligoceiie. One mile l:)el()\v Bailee's Ferry, Chipola River, 

 Florida. 



Dall, Trans. Wagner Free In.st. vSci. Phila., Ill, Pt. VI, 1903, 

 pi. 58, fig. 3." 



107089. Olivella indivisa Guppy. Holotype. 



Oligocene. Vendryes, Jamaica, West Indies. 



Guppy, Proc. U. S. Nat. Mils., XIX, 1896, p. 308, pi. 30, fig. 10. 



1 12092. Olivella lata Dall. Cotypes. 



Oligocene. Ballast Point, Tampa, Florida. 



Dall, Trans. Wagner Free Inst. vSci. Phila., Ill, Pt. I, 1890, j). 45, 

 pi. 4, fig. 8b. 



45943. Omospira alexandra (Billings). Plesiotypes. 



45944. Black River (Ord. ). Cnrdsville, Mercer County, Ken- 



tucky. 

 Stones River (Ord. ). Dixon, Illinois. 



nrich and Scofield, Geol. and Nat. Hist. vSurv. Minn., Final 

 Rept., Ill, Pt. II, 1S97, p. 946, pi. 70, figs. 66, 67. 



45945. Omospira laticincta Ulrich. Holotype. 



Black River (Ord.). Near Lebanon, Tenne.s.see. 



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

 1897, p. 945, pi. 70, figs. 64, 65. 



28196. Oncoceras arcticum Schuchert. Holotype. 



Trenton (Ord.). Head of Frobislier Ba}^ Baffin Land. 



vSchuchert, Proc. U. S. Nat. Mns., XXII, 1900, p. 172, pi. 14, figs. 

 4-7- 



28120. Oncoceras tumidum Schuchert. Cotypes. 



Trenton (Ord.). Head of Frobislier Bay, Baffin Land. 



Schuchert, Proc. U. S. Nat. Mus, XXII, 1900, p. 172, pi. 14, figs. 

 1-3- 



112190. Opalia de-bouryi Dall. Hol<)t>pe. 



Pliocene. Caloosahatchie River, P'lorida. 



Dall, Trans. Wagner Free In.st. vSci. Phila., Ill, PI. I, 1890, 

 p. 15S; Pt. II, 1892, p. 244, pi. 20, fig. 13. 



45946. Ophiletina angularis Ulrich and Scofield. Holotyi)e. 



Black River (Ord.). Near Cannon Falls, Minnesota. 



Ulrich and Scofield, Geol. and Nat. Hi.st. Surv. INIinn., l''inal 

 Rept., Ill, Pt. II, 1897, p. 1031, pi. 74, figs. 43-46. 



45947. Ophiletina sublaxa Ulrich and Scofield. Cotyjie. 



Stones River (Ord.). Dixon, Illinois. 



Ulrich and vScofield, Geol. and Nat. Hist. Surv. INIinn., iMual 

 Re])t., Ill, Pt. II, T897, p. 11)30, ]•>]. 74, figs. 40, 41. 



46070. Ophiletina sublaxa depressa Ulrich. Holotype. 



vStones Ri\-er (Ord.). Murfree.sboro, Tennessee. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., iMiial Rc])l., Pt. II, 

 1897, p. 1030, 1)1. 74, fig. 42. 



