on 
Trachydermon albus, Linné 
Chiton albus Linné, Syst. Nat. edit. XII, p. 1107. 
ory za 
int 
MüLrer, Zool. Dan. Prodr., p. 250. 
Fagricius, Fauna Groenl., p. 422. 
Caemnirz, Conch. Cab. VIII, p. 290, pl. 96, fig. 817 (mala). 
GmeLin, Syst. Nat. édit. XIIT, p. 3204. 
SPENGLER, Slaegt Chiton, in Skrift. Nat. Selsk. IV, rer cahier, p. 06. 
SPENGLER, Slaegt Chiton, in Skrift. Nat. Selsk. IV, rer cahier, p. 94. 
albus Lin., Maron et Rackerr, Descr. Catal. in Trans. Linn. Soc. VIII, p. 22, pl. 1, fig. 4. 
Turrton, Conch. Dict., p.35. 
Wooparcu, Introd. to Conch., p. 4. 
Mawe in Wooparcs, Introd. to Conch. 2d edit., p. 16. 
Mawe in Wooparcx, Introd. to Conch. 34 edit., p. 19. 
Aselloides Lowæe, Sh. of Argyleshire in Zool. Journ. II, p. 103, pl. v, fig. 5. 
albus Lin., Brown, Illustr. Conch. Gr. Brit. and Ireland, pl. 35, fig. 2, 10. 
aselloides, Lowe, On Balanus punctatus etc., in Zool. Journ. III, p. 80. 
albus Lin., FLEMNG, Brit. animals, p. 200. 
JerFreys in Sowergy, Malac. and Conch. Mag. I, p. 38. 
sagrinatus, Couraouy, Boston Journ. of Nat. Hist. IT, p. 82. 
albus Lin., Sowergy, Conch. Illustr. : Chiton, fig. 99, 100. 
GouL»p, Invert. of Massach., p. 150, pl. 1, fig. 21. 
MôzLer, Index Moll. Groenl., p. 16. 
Mines, Shells of Maine, p. 23. 
Txorpe, Brit. mar. Conch., p. 129. 
Broww, Illustr. Conch. Gr. Brit. and Irel. 2d edit., p. 66, pl. xxr, fig. 2 (médiocre). 
Tuaompson, Rep. Fauna of Ireland in Rep. Brit. Assoc., p. 259. à 
Lovén, Index Moll. Scand., p. 27. 
(Stenosemus) albus Lin., Minpenporrr, Malac. Rossica I, p. 120. 
albus Lin., 
Forges et Hancey, Brit. Moll. IF, p. 405, pl. Lx, fig. 2, 22. 
Forges, Distrib. mar. Invert. ir Rep. Brit. Assoc., p. 221. 
Srimpson, Shells of New England, p. 28. 
M. Sars, Beretn. Zool. Reise in Nyt. Mag. f. Naturv. VI, p. 178. 
M. Sars, Adr. Havs Fauna in Nyt. Mag. f. Naturv. VIII, p. 386. 
ASsBJôrnseN, Bidr. Christianiafj. Litoralf. in Nyt. Mag. f. Naturv. VII, p. 340. 
SrTimPsoN, Invert. of Grand Manan, p. 22. 
Mac Anprew, Geogr. Distrib. Test. Moll., p. 6, 7, 11. 
Mazm, Malak. Bidr. Scand. Fauna in Gôteborgs k. vet. och. Vitt. Samh. Handl. Ny 
Tidsk. Heft. LIT, p. 25. 
CLarx, Brit. mar. test. Moll., p. 251. 
Mac Anprew, N. E. Atl. Moll. in Rep. Brit. Assoc., p. 117, 145. 
Môrcx, Prodr. Faunae Moll. Groenl., p. 16. 
M. Sars, Arct. Moll. Norges in Forh. Vid. Selsk., p. 48. 
Leptochiton albus Lin., H. et A. Abams, Genera of rec. Moll. I, p. 473. 
Chiton albus Lin., Sowerey, Illustr. Index of Brit. Sh. pl. x, fig. 14. 
DantELssen, Beretn. om en Zoolog. Reise, p. 25. 
Jerrreys, Brit. Conch. II, p. 220; V (1860), p. 199, pl. Lvr, fig. 3. 
Pacxarp, Glac. Phenom. in Mem. Boston Soc. N. H., I, p. 283. 
Jerrreys, Last. Rep. on dredg. Shetland Isles in Ann. a. Mag. N. H. 4th Ser. II, 
p. 311. 
(Leptochiton) albus Lin., Môrcx, Faunula Moll. Ins. Färôensium, p. 23. 
albus Lin., Môrcx, Faunula Moll. Islandiae, p. 217. 
Perir DE LA Saussaye, Catal. Test. mar., p. 86. 
