218 TERTIARY DENTALIUM. 



D. SULCOSUM Sowerby, 1846. Darwin's Geol. Obs. on S. America,, 

 p. 263, pi. ii, fig. 2. 



Tertiary, Navidad Chili. 



D. TATEI Sharp & Pilsbry, 1898. New name for D. triquetrum 

 Tate, 1887, preoccupied. 



D. (?) triquetrum TATE (not of Brocchi, 1814). Trans. & Proc. 

 Koy. Soc. S. Australia, Vol. ix, p. 193, pKxx,fig. 3 (1887). 



Tertiary, South Australia* 

 D. TAUROCOSTATUM (Sacco), 1897. 



Antalef taurocostatwn SACCO, Moll. Terr. Terz. Piemonte e Lig- 

 uria, xxii, p. 101, pi. 8, f. 50-54, with varieties costulatior, atava, 

 octogonalis and septemcostata Sacc. 



Oligocene, Elvezian stage, Monte dei Cappueeini, N. Italy. 



D. TAUROSTRIATUM (Sacco), 1897. 



Entalis taurostriata SACC., Moll. Terr. Terz. Piem. e Ligur., xxii, 

 p. 109, pi. 9, f. 47-57, with varieties simplieior, subjuvenis, decem- 

 costata, anomalocostata of Sacco. 



Oligocene, Baldissero, northern Italy. 



D. TENUISTRIATUM Rouault, 1850. Mem. Soc. Geol. France (2), 

 Vol. iii, pt.ii, p. 473, No. 50, pl.xv, fig. 5. 



Eocene of Bos d'Arros (Basses-Pyrenees)* 



D. THALLOIDE Conrad, 1833. 



D. thalloides CONRAD, 1833. Fossil Shells of Tertiary, p. 34; 

 2d ed., p. 39, pi. 15, fig. 10; figured in Amer. Journ. Sci. (Ser. 2), 

 Vol. i, pi. 1, fig. 2. 



D. alternatum LEA, 1833. Contrib. to Geol., p. 34, pi. 1, fig. 2. 



D. asgum DE GREGORIO, 1890. Ann. Geol. et Palaeont., 8 Livr., 

 1890, p. 171, pi. 17, fig. 22, 23 a-b, 24. 



D. (asgwn) var. tirpum DE GREGORIO 1890. Ann. Geol. et 

 Palaeont., 8 Livr., p. 172. 



D. bimixtum DE GREGORIO, 1890. Ann. Geol. et Palaeont., 8 

 Livr., p. 172, pi. 17, figs. 32-34. 



Eocene, Claiborne, Alabama. 



D. TRAUTSCHOLDI v. Koencn, 1868. Bull. Soc. Imper. Natural- 

 istes de Moscou, xli, pt. i, p. 160. New name for D. badense Trautsch., 

 not Partsch. 



D. badense TRAUTSCHOLD, 1859. Bull. Soc. Imper. Nat. Mos- 

 cou, xxxii, p. 313, pi. 6, f. 4 a, b, c. Not of Partsch. 



Lower Oligocene, Aral Sea. 



