216 TERTIARY DENTALIUM. 



D. sowERBYi Cheiiu, 1842 (not of Guilding, 1834). Illustr. 

 Conch., Vol. i, p. 7, pi. 6, fig. 2. Locality and horizon unknown ; 

 but it is probably a Pliocene specimen of D. entails L. or some 

 closely allied species. 



D. SOWERBYI Michelotti, 1847 (not of Guilding, 1834, nor of 

 Chenu). Descr. foss. terr. niioc. Italic Septeutr., p. 145. 



Miocene, Turin. 



D. spECiosuM Guembel, 1861. Geognos. Beschreib. Bayerisch 

 Alpengebirg., p. 668. 



Eocene, Bavarian Alps 



D. spiRALE Risso, 1826. Hist. Nat. Europ. Merid., Vol. iv, p 

 401. 



Pliocene f '' Trinlte.' 



D. suBCOMPRESSUM Meyer, 1885. Amer. Journ. Sci., Vol. 29, p 

 462, figured in Alabama Geol. Surv. Bull. No. 1 (2), 1886, pi. 3 

 fig. 3, 3a; also Proc. Acad. Nat. Sci., 1887, p. 54, pi. iii, fig. 13 

 (Vicksburg). 



Eocene and Oligocene : Jackmn Red Bluff and Vicksburg, Miss. 



The figured type-specimen is from Jackson (Meyer). 



D. SUBEBURKEUM d'Orbigny, 1850. Prodr. Pal. Strat., ii, p. 372. 



D. eburneum G. B. Sowerby, Genera Rec. & Foss. Shells, 1825, 

 no. 15, f. 6 ; Desh., Descr. Annim. S. Vert. Bassin Paris, 1861, ii, 

 pp. 215, 216, pi. 2, f. 8-13. Not of Linnajus. 



Fudiaria circinata R. B. Newton, Syst. List Edwards Coll., B. 

 M., 1891, p. 284. Not D. cireinatum Sowb. 



Fustiaria subeburnea Orb., Newton & Harris, Proc. Mai. Soc. 

 Lond., i, p. 65. 



Eocene, Paris Basin and England. 



The last-quoted authors distinguish this as a species distinct from 

 the I'eceut eburneum Linn, (from type), and the Eocene cireinatum 

 Sowb. 



D. subentalis d'Orbigny, 1850. New name for I), entalis Lam- 

 arck and Deshayes, Prodr. Paleont. Strat., Vol. II, p. 320, No. 431. 

 Loioer Eocene, Suessonien, Cuise-Lamotte, etc., France. 



Probably a synonym of D. entale. 



D. subfissura (Tate) 1887. 



Entalis subfissura Tate. Trans. & Proc. R. Soc. S. Austral., 

 Vol. ix, p. 191, pi. XX, figs. 4a-4b. 



Earlier Tertiary, south Australia. 



