— 188 — 
1827. Turbo jugosus Mont., Brown, Ill. Conch. Gr. Brit. and Irel., pl. 46, fig. 15, 16. 
1827. —  labiatus, Browx, Il. Conch. Gr. Ne and Irel., pl. 46, fig. 20, 21. 
1828. —  rudis, Mat. FRS Brit. Anim., p. 208 (ex parte). 
1828. —  tencbrosus Mént., FLEmiNG, Brit. Ft ; P- 208. 
1830. —  rudis Mat, RES DES CHERRES, F mar. Finistère, p. 40. 
1830. Litorina groenlandica, Mere, Synopsis Moll., p. 45. 
1830. —  sulcata, Menxs, Synopsis Moll., p. 45. 
1833. Turbo rudis Mat., Woopwarn, Geol. of Norfolk, p. 44. 
1835. — — —  Boucxarp-CHanrereaux, Catal. Boulon., p. 50. 
1838. Litiorina rudis Mat., Forges, Malac. Monensis, p. 18. 
1838. —  tenebrosa Mont., Forges, Malac. Monensis, p- 18. 
1839. Litorina marmorata, L. Preirrer, Beschr. einer neuen Litorina in Arch. für Naturg. I, p. 81. 
1839. Litiorina nigro-lineata, Gray, Zool. Voyage Beechey, p. 140. 
1841. Turbo rudis Mat., Drresserr, Recueil Coq. de Lamarck, pl. 37, fig. 5a, 5b. 
1841. Littorina rudis Mat., Jonnston, Catal. Gaster. Moll. ir Proc. Berwick Club I, p. 268. 
1841. — saxatilis, JoHNSToN, Catal. Gaster. Moll. i7 Proc. Berwick Club I, p. 268. 
1841. — rudis Mat: Gourp, Invert. of Mass., p. 257, fig. 175*. 
1841. — tenebrosa Gourn, Invert. of Mass., p. 250, fig. 176*. 
1842. — groenlandica, Menxe in MôzLer, Index Moll. Groenl., p. 0. 
1842. — — Mke, Môrrer in Krôver, Tidsskrift IV, p. 82. 
1843. — rudis Mat., Mrcuezs, Shells of Maine, p. 33. 
1843. — — — DE Kay, Zool. of New York, p. 104, pl. v, fig. 103. 
1843. — tenebrosa Mont., DE Kay, Zool. of New York, p. 105, pl. vi, fig. 106. 
1843. Turbo fudis, DEsHAYES in Dee Anim. sans vert. IX, p. 216. 
1843. Littorina castanea Schr., Desnayes 17 Lamarck, Anim. sans vert. IX, p. 206. 
1844. Turbo rudis Mat., Broww, Ill. Conch. Gr. Brit. and Irel. 2e édit., p. 15, pl. x, fig. 10-14, 25. 
1844. —  littoreus, Browx, (ex parte, non Linné) Il. Conch. Gr. Brit. and Irel., 2e édit., p. 15, pl. x, fig. 
6, 7, 8 (tantum). 
1844. —  tenebrosus Mont., Brown, Il. Conch. Gr. Brit. and Irel. 2e édit., p. 16, pl. x, fig. 18, 10. 
1844. —  jugosus Mont., Broww, Il. Conch. Gr. Brit. and Irel. 2e édit., p. 16, pl. x, fig. 15, 16. 
1844. —  labiatus, Brown, Ill. Conch. Gr. Brit. and Irel. 2e édit., p. 16, pl. x, fig. 20, 27. 
1844. —  rudis Mat., Torre, Brit. mar. Conch., p. xxxix /Litiorina) et p. 166. 
1844. —  tenebrosus Mont., THorre, Brit. mar. Conch., p. 166, pl. vu, fig. 92. 
1844. Littorina jugosa Mont., THorPe, Brit. mar. Conch., suppl., p. 257. 
1844. —  patula, Torre, Brit. mar. Conch., suppl. p. 259, pl. 1, fig. 7. 
1844. — saxatilis Johnst., Taorre, Brit. mar. Conch., suppl., p. 258. 
1844. — rudis Mat., Maccrrrivray, Moll. Anim. of Scotland, p. 137. 
1844. — tenebrosa Mont., Maccrrrivray, Moll. Anim. of Scotland, p. 138. 
1844. —  jugosa Mont., Maccrrrivray, Moll. Anim. of Scotland, p. 326. 
1844. — saxatilis Johnst., Maccizrivray, Moll. Anim. of Scotland, p. 138. 
1844. —- neglecta, BEAN in THorpe, Brit. mar. Conch., suppl., p. 266. 
1844. — rudissima, BEAN in THorre, Brit. mar. Conch., suppl., p. 267. 
1844. — rudis Mont., THomrson, Rep. Fauna of Ireland in Rep. Brit. Assoc., p. 255. 
1845. Litorina rudis Mont., Meke, Moll. d. Nordsee in Zeitschr. für Malak., p. 255. 
1846. — — — Part, Abbild., p. ro3, pl. r, fig. 14, 15, 16. | 
1846. — groenlandica Menke, Paivrppr, Abbild., p. 103, pl. 1, fig. 11-13. 
1846. — nigrolineata Gray, Parcrppr, Abbild., p. 104, pl. 1, fig. 17-10. 
1846. Turbo rudis Mat., Monracu, Test. Brit., édit. Chenu, p. 136. 
1846. Litorina rudis Mat., Lovén, Index Moll. Scand., p. 22. 
1846. — groenlandica Mke, Lovén, Index Moll. Scand., p. 22. 
1848. — tenebrosa Mont., Paicrprr, Abbild., p. 67, pl. vu, fig. 20-22. 
1848. —  jugosa Mont., Pairtepr, Abbild., p. 61, pl. vur, fig. 23. 
1848. — saxatilis Johnst., Paicrppr, Abbild., p. 60, pl. vx, fig. 16. 
1848. — obligata Say, Pæicrprr, Abbild., p. 6r, pl. var, fig. 10. 
1848. Littorina neglecta Bean, Arper, Catal. North. and Durham, p. 56. 
1848. — rudissima, ALDvEer, Catal. North. and Durham, p. 55. 
1848. — rudis Mat., Acper, Catal. North. and Durham, p. 55. 
