DENTALIUM, PALiEOZOIC. 229 



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

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



Trias, St. Cassian, Tyrol. 



D. vALANGiENSEPictet & Carapiche, 1864. Paleout. Suisse, (3), 

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



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

 Switzerland. 



Palaeozoic 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 Rhahdus. 



D. ACUMEN (Koninck), 1883. 



Entails acumen Kon., Ann. Mus. Roy. d'Hist. Nat. Belgique, viii, 

 pt. 4, p. 216, pi. 49, f. 22 (1888). 



Carboniferous, Vise, Belgium. 



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

 xxix, pt. 22, p. 584 ; Lethtea Rossica, i, p. 1062, Atlas, pi. 40, fig. 

 10. 



Silurian, Orthoceratites limestone near Poulkovo, government of St. 

 Petersburg, Russia. 



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

 lication not valid ", see jNlillei", 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 Rhein- 

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

 20a. 



" String ocephalushalk," 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. 



