151 
Productus scabriculuSy 
Leptcena scabricula, 
Producta „ 
,, quincuncialis, 
Productus corbis, 
„ scabriculus, 
,, pustuloms ? 
55 55 
5 5 55 
,, scahriculus, 
L. G. de Koninck, 1843, Descr. Anim. Foss. Terr. Garb. Belg., 
p. 190, pi. 11, fig. 3. 
Farenkohl, 1844, Bull. Soc. Imp. Nat. Moscou, XVI, p. 784. 
McCoy, 1844, Synop. Garb. Limestone Foss. Ireland, p. 114. 
Idem, 1844, ibid., p. 114. 
Potiez and Michaud, 1844, Gall. Moll. Musee de Douai, II, p. 26, 
pi. 41, fig. 2. 
E. de Verneuil, 1845, In Murchison, deVerneuil and Keyserling, 
Eussia and the Ural Mts., II, p. 271, pi. 16, fig. 5, and pi. 18, 
fig. 5. 
Idem, 1845, ibid., p. 276, pi. 16, fig. 11 (non Phillips). 
L. G. de Koninck, 1847, Mem. Soc. E. Sci. Liege, IV, p. 114, 
pi. 11, fig. 7. 
Idem, 1847, Eech. Anim. Foss., I, p. 10, pi. 11, tig. 6. 
McCoy, 1847, Ann. Mag. Nat. Hist., XX (1), p. 235. 
55 
55 
55 
55 
55 
55 
55 
55 
55 
55 
55 
55 
55 
55 
Pogersii, 
Neffedievi, 
scabriculus, 
asperus, 
symmetricus ? 
Wilberanus, 
scabriculus, 
P. V. Semenow, 1854, Ueber Foes. Schlesischeu Kohlenkalk, p. 41. 
J. Morris, 1854, Cat. Brit. Foss., p. 145. 
Norwood and Pratteu, 1854, Journ. Acad. Nat. Sci. Philadelphia, 
III, p. 9, pi. 1, fig. 3, 
De Keyserling, 1854, In Schrenck, Eeise nach dem Nordosten 
des Europ. Eusslands, II, p. 93. 
J. Hall, 1856, In Blake’s Eept. Pacific Eailroad Explor., p. 104, 
pi. 2, fig. 14, 15. 
J. Marcou, 1858, Geol. N. Am., p. 47, pi. 5, fig. 6. 
J. H. McChesney, 1858, Descr. New Sp. Foss. Pal. Eocks 
Western States, p. 34, pi. 1, fig. 7. 
Idem, 1858, ibid., p. 35, pi. 1, fig. 9. 
Idem, 1858, ibid., p. 36, pi. 1, fig. 8. 
T. Davidson, 1860, Mon. Garb. Brach. Scotland, p. 42, pi. 4, 
fig. 18. 
E. d’Eichwald, 1860, Lethtea Eossica, I. p. 891. 
,, T. Davidson, 1866, Quart. Journ. Geol. Soc., XXII, p. 42, pi. 2, 
fig. 13. 
,, H. B. Geinitz, 1866, Garb. u. Dyas in Nebraska, p. 54. 
pUStuloSUS, Idem, 1866, ibid., p. 55. 
