— 26 



Trachydermon altms, Linné 



1767. Chiton albus Linné, Syst. Nat. edit. XII, p. 1107. 



1776. — — Lin., Mùller, Zool. Dan. Prodr., p. 25o. 



1780. — — — Fabricius, Fauna Groenl., p. 422. 



1785? — — — Chemnitz, Conch. Cab. VIII, p. 290, pi. 96, fig. 817 (mala). 



1790. — — — Gmelin, Syst. Nat. édit. XIII, p. 3204. 



1797. — — — Spengler, Slaegt Chiton, in Skrift. Nat. Selsk. IV, 1" cahier, p. 96. 



'797- — ory^a Spengler, Slaegt Chiton, in Skrift. Nat. Selsk. IV, i« cahier, p. 94. 



1807. — albus Lin., Maton et Rackett, Descr. Catal. in Trans. Linn. Soc. VIII, p. 22, pi. 1, fig. 4. 



1819. — — — Turton, Conch. Dict., p. 35. 



1820. — — — Woodarch, Introd. to Conch., p. 4. 



1822. — — — Mawe in Woodarch, Introd. to Conch. 2<J edit., p. 16. 



1825. — — — Mawe in Woodarch, Introd. to Conch. 3d edit., p. 19. 



1825. — Aselloides Lowe, Sh. of Argyleshire in Zool. Journ. II, p. io3, pi. v, fig. 5. 



1827. — albus Lin., Brown, Illustr. Conch. Gr. Brit. and Ireland, pi. 35, fig. 2, 19. 



1828. — aselloides, Lowe, On Balanus punctatus etc., in Zool. Journ. III, p. 80. 

 1828. — albus Lin., Fleming, Brit. animais, p. 290. 



i838. — — — Jeffreys in Sowerby, Malac. and Conch. Mag. I, p. 38. 



iS38. — sagrinatus, Couthouy, Boston Journ. of Nat. Hist. II, p. 82. 



1 839. — albus Lin., Sowerby, Conch. Illustr. : Chiton, fig. 99, 100. 



1841. — — — Gould, Invert, of Massach., p. 1 5o, pi. 1, fig. 21. 



1842. — — — Môller, Index Moll. Groenl., p. 16. 



1843. — — — Mighels, Shells of Maine, p. 23. 



1844. — — — Thorpe, Brit. mar. Conch., p. 129. 



1844. — — — Brown, Illustr. Conch. Gr. Brit. and Irel. 2 d edit., p. 66, pi. xxi, fig. 2 Imédiocre). 



1844. — ■ — ■ — Thompson, Rep. Fauna of Ireland in Rep. Brit. Assoc, p. 259. 



1846. — — — Lovén, Index Moll. Scand., p. 27. 



1847. — (Stenosemus) albus Lin., Middendorff, Malac. Rossica I, p. 120. 

 1849. — albus Lin., Forbes et Hanley, Brit. Moll. II, p. 405, pi. lxii, fig. 2, 2'. 

 i85o. — — — Forbes, Distrib. mar. Invert, in Rep. Brit. Assoc, p. 221. 

 i85i. — — — Stimpson, Shells of New England, p. 28. 



i85i. — — — M. Sars, Beretn. Zool. Reise in Nyt. Mag. f. Naturv. VI, p. 178. 



i853. — — — M. Sars, Adr. Havs Fauna in Nyt. Mag. f. Naturv. VIII, p. 386. 



1 85 3. — — — Asbjôrnsen, Bidr. Christianiafj. Litoralf. in Nyt. Mag. f. Naturv. VII, p. 349. 



1854. — — — Stimpson, Invert, of Grand Manan, p. 22. 



1854. — — — Mac Andrew, Geogr. Distrib. Test. Moll., p. 6, 7, 11. 



1 855. — — — Malm, Malak. Bidr. Scand. Fauna 111 Gôteborgs k. vet. och. Vitt. Samh. Handl. Ny 



Tidsk. Heft. III, p. 25. 



i855. — — — Clark, Brit. mar. test. Moll., p. »5i. 



i856. — — — Mac Andrew, N. E. Atl. Moll. in Rep. Brit. Assoc, p. 117, 145. 



1857. — — — Môrch, Prodr. Faunae Moll. Groenl., p. 16. 



i858. — — — M. Sars, Arct. Moll. Norges in Forh. Vid. Selsk., p. 48. 



iS58. Leptochiton albus Lin., H. et A. Adams, Gênera of rec Moll. I, p. 473. 



1 85g. Chiton albus Lin., Sowerby, Illustr. Index of Brit. Sh. pi. x, fig. 14. 



1859. — — — Danielssen, Beretn. om en Zoolog. Reise, p. 25. 



1 865. — — — Jeffreys, Brit. Conch. III, p. 220; V (1869), p. 199, pi. lvi, fig. 3. 



1867. — — — Packard, Glac Phenom. in Mem. Boston Soc. N. H., I, p. 283. 



1868. — — — Jeffreys, Last. Rep. on dredg. Shetland Isles in Ann. a. Mag. N. 



p. 3i 1. 



1868. — (Leptochiton) albus Lin., Môrch, Faunula Moll. Ins. Farôensium, p. 23. 



1868. — albus Lin., Môrch, Faunula Moll. Islandiae. p. 217. 



1869. — — — Petit de la Saussaye, Catal. Test, mar., p. 86. 



