224 DENTALTUM, MESOZOIC. 



D. MICHAUXIANUM Ryckholt, 1852. Mem. Couronn. Acad. Roy. 

 Sci. Belg., Vol. xxiv, p. 72-73, pi. ii, figs. 47-48. 



D. ellipticum " Sowerby," REUSS, Verstein. Bohm. Kreideform., 

 p. 41, pi. 11, f. 20. Not of Sowerby, 1812. 



Turonien, near Liege, Belgium. 



D. MINIMUM Strickland, 1845. GeoJ. of Cheltenham, p. 101. 

 TATE, Quart. Journ. Geol. Soc. L->nd. xx, 1864, p. 111. 



"Z>. tenue PORTLOCK, Rep. Geol., Londonderry, 1843," p. ? . 

 Not of Goldfuss. 



Lias, Cracombe ; Island Magee, Antrim Co., Ireland. 



D. MOOREI Pilsbry & Sharp, 1898. New name for D. lineatum 

 Moore, 1870, not Gueranger, 1853. 



D. lineatum MOORE, 1870, (not of Gueranger, 1853). Quart. 

 Jour. Geol. Soc. London, Vol xxvi, p. 256. 



" Queensland Series" Wollumbilla, Queensland, Australia. 



The description is nearly worthless, but it will doubtless be iden- 

 tified by the locality and horizon. 



D. MOREANUM " D'Orbigny, 1 8 15 " in Murchison, Verneuil et 

 Keyserling, Geol. Russ. d'Eur et de 1'Oural, Vol. ii, p. 454, pi. 38, 



fig." 10. 



Jurassic, Lower Oxfordian stage, France and Russia. 



D. moreauanum BRONN, NomencL Pal., 415. EICHWALD, Lethsea 

 Rossica, ii, p. 797. 



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

 alternans Muller, 1849, (q. v), not of Chenu, 1842. 



D. alternans Muller, 1849. Programm Koen. Gymnasiums 

 Aachen, p. 5, pi. iii, fig. 1. Reprinted in the Monograph. Petrifac. 

 Aachener Kreideform ation, ii Abth., which was published by the 

 Ver. Preus?. Reinl. & Westphal., Bonn, 1851, p. 5, pi. iii, fig. 1. 

 (Not D. alternans Chenu, 1842). 



Cretaceous, " Konigsthore" near A ix la Ghapelle* 



D. MITENSTERI Sharp & Pilsbry, 1898. New name for D. cine- 

 tarn Minister in Goldfuss, not of de Konick. 



D. cinctum Muenster, 1844 in Goldfuss, Petrifact. German., Vol. 

 iii, p. 3, pi. 166, fig. 7. 



Jurassic, Derneburg, Germany. 



D. MULTICANALICULATUM Guembel, 1861. Geogn. Beschreibung 

 d. bayr. Alpengeb., p. 572 ; figured in Boehm, Palaeontographica,. 

 Vol. 38, 1891, p. 69,pl. 3, fig. 1 a-b. 



Cretaceous, Bavaria* 



