TERTIARY-DENTALIUM. 199 



Considered by Dall a form of D. minutistriatum Gabb. 



D. ANNULATUM Gmelin, 1788. Syst. Nat. (13), p. 3,738, No. 15. 

 We have not access to Guettards work in which this is figured, and 

 are, therefore, ignorant of its characters and geological horizon. 

 Sacco refers it with doubt to D. jani Homes, q v. 



D. ARATUM Tate, 1887. Trans. & Proc. Roy. Soc. S. Australia, 

 Vol. ix, p. 192, pi. xx, fig. 8. 



Eocene, Victoria, Australia. 



D. ARAUCANUM Philippi, 1887. Tertiar. und Quartar. Verstein. 

 Chiles, p. 107, pi. xii, fig. 17. 



Tertiary of Chili. 



D. ARCIFORME Conrad, 1846. 



D. arciformis CONRAD, Amer. Jour. Sci. (2 Ser.), Vol. i, p. 212, 

 pi. 1, fig. 3. 



D. leai MEYER, 1885. Amer. Jour. Sci., Vol. 29, p. 462 ; fig- 

 ured in Geol. Surv. of Alabama, Bull. No. 1, (2), pi. 1, figs. 2, 2a. 



Eocene, Alabama. 



D. ATTENUATUM Say, 1824. Journal Acad. Nat. Sci. Phila., 

 Vol. iv, p. 154, pi. 8, fig. 3. 



D. dentale CONRAD, 1840. Fossils of the Medial Tertiary of the 

 U. S., No. 2, p. 78, pi. 44, fig. 9. 



D. duodecenaria CONRAD, 1862. Proc. Acad. Nat. Sci. Phila., p. 

 570. 



Chesapeake Miocene, from Maryland to South Carolina; Alum 

 Bluff, Fla. 



D. AUSTRALIS Sharp & Pilsbry, 1898. New name for Entalis 

 annulatum Tate, 1887, preoc. by Gmelin and by Meyer. 



Entalis annulatum TATE, 1887. Trans. & Proc. R. Soc. S. Aus- 

 tralia, Vol. ix, p. 191-2, pi. xx, fig. 6a, b. 



Earlier Tertiary, Muddy Creek, S. Australia. 



D. BADENSE Partsch, 1856, in Hoernes, Abhandl. K. K. Geol. 

 Reichs. Anst. Wien, p. 652, pi. 50, fig. 30. Entalis badensis SACCO, 

 Moll. Terr. Terz. Piemoute e Liguria, xxii, p. 107, pi. 9, f. 17-20, 

 with var. pliocenica, laticostata, pseudobouei, paucicostata, planicos- 

 tata of Sacco. 



D. rectum Gmel. var., of BONELLI, SISMONDA and some others. 



Lower Miocene : Aquitanian, Elvezian, etc., of South Germany 

 and Austria and northern Italy. 



