TERTIARY DENTALIUM. 213 



D. PRISMATICUM Seguenza, 1880. Form. Terz. Prov. Reggio 

 (Calabria), Real. Accad. Liucei, An. 1878-80, p. 117, pi. xi, figs. 

 49, 49a. 



Miocene, Tortonian Stage, Italy. 



D. PROLIFERUM Chenu, 1842. 111. Conch., Vol. i, p. 6, pi. 4, fig. 

 5. 



Pliocene or Miocene, Italy. 



D. PSEUDOANTALIS Lamarck, 1818. Anim. s. Vert., Vol. v, p. 

 345 ; figured in Deshayes as D. pseudo-entalis, Descr. Anim. s. 

 Vert. Bassin Paris, Vol. ii, pi. 1, figs. 4-6. 

 D. pseudo-entalis DEFRANCE, Diet. Sci. Nat., Vol. xiii, p. 72. 



Eocene of the Paris Basin. 



D. PSEUDONYMA Pilsbry & Sharp. New name for Teredo sub- 

 striata Conr., 1850, not D. substriatum Desh., 1825. 



Teredo substriata CONRAD in Dana's Geology of the U. S. Expl. 

 Exped. (Wilkes) Appendix, p. 728, pi. 20, f. 7, 7a, 7b. 



Miocene, Astoria, Oregon. 



D. PYRUM Pilsbry & Sharp, 1898. Proc. Acad. Nat. Sci. Phila., 

 1897, p. 472, pi. ll,f. 12-14. 



Oligocene of San Domingo. 



D. QUINDECIESSTRIATUM Eichwald, 1853. Lethsea Rossica, Vol. 

 iii, p. 137 ; Atlas.pl. iii, fig. 19. 



D. striatum EICHWALD, 1830 (not of Lamarck, 1818). Nat. 

 Hist. Skizze von Lithuanen, etc., p. 199. 



Pliocene, Znkowce, Russia. 



D. RADULA Schroeter, 1784. Einleitung in die Conchylien 

 Kenntuiss, Vol. ii, p. 530. GMEL., Syst. Nat., (xiii), p. 3,738. 



D. aspersum MICHELOTTI, 1847. Descr. foss. Terr. Miocenes 

 Italic Septentrion, p. 144, No. 6, pi. 5, figs. 2Q-2l. Coccodentalium 

 radula SACCO, Moll. Terr. Terz. Piem. e Ligur., xxii, p. Ill, pi. 10, 

 f. 7-21, with varieties gracillima and raricostata Sacc. 



/ Dentalites radularis SCHLOTHEIM, Die Petrefactenkunde, p. 95, 

 (1820). 



Upper Miocene, Tortonian stage, Stazzano, S. Agate and Montegib- 

 bio, Piedmont. 



D. RECTUM Gmelin, 1788. Syst. Nat. (13), p. 3,738. D. deles- 

 sertianum CHENU, Illustr. Conch., i, p. 3, pi. 6, f. 10. /). eleplianti- 

 num of various authors upon Italian Tertiary fossils, not of Linne*. 

 Entalis recta SACCO, Moll. Terr. Terz. Piem. e Ligur., xxii, p. 



