230 DENTALIUM, PALEOZOIC. 



D. ANTIQUUM Goldfuss, 1844. Petrifac. German., Vol. iii, p. 2,. 

 pi. 166, fig. 2. 



D. priscum "Muenster" in SANDBERGER, Jahrb. Min. Geol.,. 

 1842, p. 399. 



Of. WHITEAVES, Contrib. to Canadian Palseont. I, pt. iv, p. 311, 

 pi. 45, f. 1, 2. 



Devonian, at Mont Eifel, Vise, etc.. 



D. ARENARIUM Romer, 1855. Geol. Kennt. n.-w. Hartzebirges. 

 Palseontographica, Vol. v, p. 13, pi. iii, fig. 16. 



Spirifer-sandstone, Hartz Mountains. 

 May prove to be a Pteropod, Coleolus. 



D. BARQUENSE Winchell, 1862. Proc. Acad. Nat. Sci. Phila., 

 p. 425. 



Subcarboniferous ; Marshall Group, Michigan. 



D. CANNA White, 1874. Rep. Invert. Foss., p. 23 ; Rep. U. S. 

 Geograph. Surv. West of 100th Merid., Vol. iv, pt. 1, p. 156, pi. 

 12, f. 6 (1877). 



Carboniferous, Utah and Arizona. 



D. CORNU Koninck, 1877. Foss. Pal. Nouv.-Galles du Sud, pt. 

 3, p. 315, pi. 23, fig. 4. 



Karu, N. S. Wales. 



D. CYRTOCERATOIDES (Koninck), 1883. 



Entails cyrtoceratoides KONINCK, Ann. Mus. Roy. d'Hist. Nat. 

 Belgique, viii, pt. 4, p. 216, pi. 49, f. 13-15. 



Carboniferous, Vise, Belgium. 

 It is allied to D. priscum. 



D. (?) DENTALOIDEUM (Phillips). (Orthoceras dentaloideum 

 Phillips, 1836). Illustr. Geol. of Yorkshire, pt. ii, p. 239, pi. xxi, 

 fig. 12. 



Carboniferous, England. 



A doubtful Dentalium. L.-G. De Koninck considers it equally 

 likely to be a Cyrtoceras. 



D. GRAND.EVUM Winchell, 1863. Proc. Acad. Nat. Sci. Phila., 

 p. 18. 



Subcarboniferous, " Marshall Group," Burlington, Iowa* 



D. GRANOSUM Eichwald, 1856. Bull. Soc. Imp. Nat. Moscou, 

 Vol. xxix, pt. 2, p. 584; Lethaea Rossica, i, p. 1061, Atlas, pi. 40, 

 fig. 7. 



