DENTALIUM, PALAEOZOIC. 229 



D. UNDULATUM Muenster, 1844, Goldfuss, Petrifac. Germ., vol. 

 iii, p. 3, pi. 166, fig. 8. 



Trias, St. Cassian, Tyrol. 



D. VALANGIENSE Pictet & Carapiche, 1864. Paleont. Suisse, (3), 

 pt. 2, Foss. Terr. Cretac. Sainte Croix, p. 723, pi. 98, f. 16-18. 



Valangian stage of the Neocomian, at Villers-le-Lac, near le Lode, 

 Switzerland. 



PALEOZOIC SPECIES. 



There may possibly be some accessions to the roll of Palaeozoic 

 scaphopods from the genus Coleolus of Hall, supposed to belong to 

 the Pteropoda. The species are mainly thinner and straighter than 

 the shells of Dentalium ; but there are also thin and nearly straight 

 Dentalia, as in the subgenus Ehabdus. 



D. ACUMEN (Koninck), 1883. 



Entalis acumen KON., Ann. Mus. Hoy. d'Hist. Nat. Belgique, viii, 

 pt. 4, p. 216, pi. 49, f. 22 (1883). 



Carboniferous, Vise, Belgium. 



D. ACUS Eichwald, 1856. Bull. Soc. Imp. Nat. Moscou, Vol. 

 xxix, pt. 22, p. 584 ; Lethsea Kossica, i, p. 1062, Atlas, pi. 40, fig. 

 10. 



Silurian, Orthoceratites limestone near Poulkovo, government of St. 

 Petersburg, Russia. 



D. ACUTISULCATUM Gurley, 1883. New Garb. Foss., p. 7. (" Pub- 

 lication not valid ", see Miller, North American Geology and 

 Paleontology, 1889, p. 402). 



Carboniferous, U. S. 



D. ANNULIFERUM Pilsbry & Sharp, 1898. New name for D. 

 annulatum Sandb. not Gmel. 



D. annulatum SANDBERGER, 1842. Neues Jahrb. Min., Geogn., 

 Geol., etc., p. 399, (no description) ; Versteinerungen des Khein- 

 ischen Schichtensystems in Nassau, 1850-1856, p. 241, pi. 26, f. 20, 

 20a. 



" Stringocephaluskalk" Villmar, Prussia. 



D. ANNULOSTRIATUM Meek & Wortheu, 1870. Proc. Acad. Nat. 

 Sci. Philada., p. 45 ; Paleontology of Illinois (Geol. Surv. 111., v), 

 p. 589, pi. 29, f. 7. 



Carboniferous, Danville, Illinois. 



