— 248 — 



i85i. Natica helicoides Johnst., Stimpson, Shells of New England, p. 42. 



i85i. — — — Forbes et Hanley, Brit. Moll. III, p. 339, pi. c, fig. 6. 



1852. — — — Philippi, Monogr. in Syst. Conch. Cab., 2 e édit., p. g3, pi. i3, fig. i3, 14. 



i853. — — — M. Sars, Adr. Havs Fauna in Nyt Mag. f. Naturv. VIII, p. 38g. 



1854. — — — Mac Andrew, Geogr. distr. mar. Moll., p. 6, 8, 11, 45. 



i855. — — — Clark, Brit. mar. test. Moll., p. 467. 



i855. — — — Reeve, Conch. Icon., pi. xxx, fig. 142% 142b, 144a, 144b, i45 a , 145b, 146", 146b. 



i855. — cornea Moll., Reeve, Conch. Icon., pi. xxx, fig. 143», 143b. 



i856. — helicoides Johnst., Mac Andrew, Report N. E. Atl. Moll. in Rep. Brit. Assoc, p. 126, i5i. 



i856, — — — Mac Andrew & Barrett, Moll. obs. betw. Drontheim and the North Cape 



in Ann. and Mag. N. Hist. 2<i Ser. XVII, p. 37g. 

 1857. — — Mac Andrew & Barrett, Distr. Moll. Nordland and Finmark in Ann. and Mag. 



N. Hist. 2d Ser. XX, p. 268, 269. 

 1837. — helicoides Johnst., Carpenter, Rep. Moll. W. Coast of N. Amer, in Rep. Brit. Ass., p. 223. 

 1857. Lunatia islandica Gmc-1., Môrch, Catal. Suenson, p. 16. 

 i858. Amauropsis cornea Moll., H. &. A. Adams, Gênera of rec. Moll. II, Appendix, p. 621, pi. cxxxvn, 



fig. 5. 

 i85g. Natica helicoides Johnst., Forbes & Godwin-Austen, Nat. Hist. of the Eur. Seas, p. 49, 2go. 

 1859. — — — Danielssen, Beretn. om en Zool. Reise, p. 3i. 



i85g. — — — Jeffreys, Further Gleanings in Brit. Conch., in Ann. and Mag. N. Hist. 3d 



Ser. III, p. 43. 

 i85g. — — — Jeffreys, Addit. gleanings in Brit. Conch., in Ann. and Mag. N. Hist. 3<* 



Ser. IV, p. 198. 

 i863. — (Lunatia) helicoides Johnst., Troschel, Das Gebiss der Schnecken, p. 180, pi. xv, fig. 6 



(radule). 

 i863. — helicoides Johnst., M. Sars, Geol. og Zool. Jagtt., p. 7. 

 1867. — islandica Gmel., Jeffreys, Brit. Conch. IV, p. 214; V (1869), p. 2i5, pi. lxxviii, fig. 1, 1. 



1867. Amauropsis islandica Gmel., Packard, Glac. Phenom. in Mem. Boston Soc. N. H. I, p. 24g. 



1868. Natica (Amauropsis) islandica Gmel., Môrch, Faunula Moll. Ins. Faroensium, p. 16. 



1868. — — — — Môrch, Faunula Moll. Islandiae in Vidensk. Meddel., p. 20g. 



186g. — — — — Môrch, Catal. Moll. Spitzberg in Mém. Soc. Malac. Belg. IV, 



p. 16. 

 186g. Amauropsis islandica Gmel., Petit de la Saussaye, Catal. test, mar., p. 108. 

 186g. — cornea Moll., Petit de la Saussaye, Catal. test, mar., p. 108. 



1870. — helicoides Johnst., Gould & Binney, Invert, of Mass., p. 348, fig. 617. 



1871. Natica (Amauropsis) islandica Gmel., Môrch, Synopsis Moll. mar. Daniae,p. 38. 



1872. Natica Islandica Gmel., Jeffreys, Moll. of Europe and E. N. Amer, in Ann. and Mag. N. Hist. 41b 



Ser. X, p. 244. 



1872. — helicoides Johnst., Schmidt, Mammuth Exp. in Mem. Acad. S' Petersb. vn« série, xvm, p. 5i. 



1873. Amauropsis islandica Johnst., Tryon, Amer. mar. Conch., p. ôi, pi. 9, fig. 104. 



1873. Natica (Amauropsis) islandica Johnst., Weinrauff, Catal. Meeresconch., p. 14. 



1874. — islandica Johnst., Mac Intosh, Moll. of S» Andrews in Ann. and Mag. N. Hist. 4<b Ser. XIII, 



p. 424. 

 187D. — — — Leckenby & Marshall, North Sea Dredg. in Ann. and Mag. N. Hist. 4'b 



Ser. XVI, p. 3g2. 



1877. — (Amauropsis) islandica Johnst., Verkrûzen, Moll. from S' John's (Newfoundland), p. 8. 



1878. Amaura helicoides Johnst., Kobelt, Illustr. Conchylienb., p. 82, pi. 3o, fig. 16. 

 1878. Amauropsis helicoides Johnst., Lèche, Novaja Semlja, p. 5o. 



1878. — islandica Gmel., G.-O. Sars, Moll. Reg. Arct. Norv.,p. i56, pi. 21, fig. 17. 



1879. Natica islandica Gmel., Norman, Moll. of Bergen Fjords in Journ. of Conch. II, p. 54. 



1879. Natica (Amauropsis) islandica Gmel., Friele, Catal. Spitzberg. Moll. in Jahrb. d. d. Malac. Ges. VI, 



p. 2 7 3. 

 1882. — helicoides Johnst., Cooke, Macandrew Collect. in Journ. of Conch. III, p. 370. 

 i883. — (Amauropsis) canaliculata Gld., Tryon, Struct. and Syst. Conch. II, p. 206, pi. 63, fig. 5o. 

 i885. — islandica Gmel., Herzenstein, Beitr.zur Kenntn. der Fauna der Murmankùste, p. 675. 

 188S. — Islandica — Darbishire, Mar. Moll. at Oban in Journ. of Conch. IV, p. 35o. 

 i885. — (Amauropsis) helicoides Johnst., Aurivillios, Ôvers. « Vega » Exp., p. 332. 



