— 226 — 
1857. Natica affinis Gmel., Môrcn, Catal. Suenson, p. 51. 
1858. —  clausa Br. et S., H. & A. Apams, Gen. ofrec. Moll. I, p. 205. 
1858. — — — M. Sans, Arctiske Molluskf. Norges in Forh. Vidensk. Selsk., p. 42. 
1859. — — — Jerrrevs, Further Gleanings in Br. Conch. in Ann. & Mag. N. H., 34 Ser. III, 
D ne: 
1859. — — — DanreLssen, Beretn. om en Zool. Reise, p. 31. 
1859. — — — Forges & GopwiN-AusTeN, Natur. Hist. of the Eur. Seas, p. 49, 53, 54, 290. 
1860. —  affinis Gmel., Môrca, Naturh. Tillaeg af Groenland, p. 80. 
1863. —  clausa Br. et S., Carpenter, Rep. Moll. W. Coast of N. Amer. in Rep. Br. Ass. f. adv. of Sc., 
p. 523, 530, 585, 661, 683. 
1863. — — — M. Sars, Geol. og Zool. Jagtt., p. 8. 
1866. — — CaARPENTER, Pleistoc. fossils 22 Ann. & Mag. N. H., 34 Ser. XVII, p. 275. 
1867. Nerita affinis Gmel., Jerrreys, Brit. Conch. IV, p. 220. 
1867. Natica clausa Br. et S., Scnrencx, Reisen im Amur-Lande II, p. 373. 
1867. —— — — PackarD, Glac. Phenom. ir Mem. Boston Soc. N. H. I, p. 232, 285. 
1868. —  affinis Gm., Môrcu, Faunula Moll. Ins. Färôens., p. 16. 
1868. — — —  Môrcx, Faunula Moll. Islandiæ #n Vidensk. Meddel., p. 208. 
1868. — — —  Môron, Oversigt of Islands Blüddyr, p. 24. 
1868. — — — M. Sans, Forts. Bemaerk. in Vidensk. Selsk. Forh., p. 258. 
1860. — — —  Jerrreys, Brit. Conch. V, p. 215, pl. cr, fig. 3. 
1860. —  clausa Br. et S., Mürc, Catal. Moll. Spitzberg in Mém. Soc. Mal. Belg. IV, p. 16 (var. tenuis). 
1860. — — — Perit DE LA Saussaye, Cat. test. mar. p. 105 (incl. affnis). 
1870. — — — GouLp, Inv. of Mass., p. 343, fig. 612. 
1870. —  affinis Gmel., Jerrreys, Norw. Moll. ir Ann. & Mag. N. H., 4th Ser. V, p. 9. 
1870. — —  —  G.-O. Sans, Christianiafj. Fauna II, p. 57. 
1871. — — —  G.-O. Sars, Hardangerfj. Fauna in Vidensk. Selsk. Forh., p. 8. 
1872. —  clausa Br. et S., Dawson, Post-Plioc. Geol. of Canada in Canadian Naturalist, new Ser, VI, 
P-+ 249- 
1872. — — — Scamior, Mammuth Exp. i7 Mém. Acad. St Pétersb. VIIe Série XVIII, p. 52. 
1872. — — —  Jerrreys, Moll. of Europe and E. N. America in Ann. & Mag. N. H., 4th Ser. 
X, p. 244. 
1872. —  afinis Gmel., Brôccer, Bidr. Kristianiafj. Molluskf., p. 8,14. 
1873. — —  —  Jerrreys, Moll. of Europe and N. America in Ann. & Mag. N. H., 4th Ser. XI, 
p- 377. 
1873. — — —  Tryon, Amer. mar. Conch., p. 68, pl. 1x, fig. 94. 
1873. —— — —  Wemkaurr, Catal. Meeresconch., p. 14. 
1873. —  clausa Br. et S., Verrize, Dredg. Exp. N. Engl. in Amer. Journ. Sc. a. Arts 34 Ser. VI, p. 440. 
1874. — — — Môsius, Zweite Deutsche Nordpolarfahrt, p. 250. 
1874. — — — Verricz, Dredg. Coast N. Engl. in Amer. Journ. Sc. a. Arts 3d Ser. VII, p. 4r2. 
1874. — — — VerriLz & Smira, Invert. Anim. of Vineyard Sound, p. 225, 353. 
1874 .— — —  Dunxer & Merzcr, Drei neue Meeres-Conch. d. norw. Fauna in Jahrb. d. 
Malak. Ges. I, p. 150. 
1877. — affinis Gmel., Jerrreys, « Valorous » Exp. in Ann. & Mag. N. H., 4th Ser. XX, p. 318. 
1877. — —— —  Jerrreys, Adress Biol. Sect. Brit. Assoc., p. 3. 
1877. — — —  VerkrÜzen, Moll. from St John’s Newfoundland, p. 8. 
1877. —  clausa Br. et S., Crosse, Moll. du détr. de Behring in J. de C. XXV, p. 110. 
1877. —  affinis Gmel., E.-A. Surru, Moll. arctic Exp. in Ann. & Mag. N.H., 4th Ser. XX, p. 138. 
1878. —  clausa Br. et S., G.-O. Sars (ex parte). Moll. Reg. arct. Norv., p. 159, pl. 21, fig. 13 — (excl. 
fig. 122, 12b); p. 160 (var. elatior Middend., pl. 12, fig. 1e, 1b, 1). 
1878. — affinis Gmel., G.-O. Sars, Moll. reg. arct. Norv., p. 160, pl. 21, fig. 142, 14b; pl. v, fig. 16 (radula). 
1878. —  clausa Br. et S., Lecne, Novaja Semlja, p. 40. 
1878. —  affinis Gmel., Free, Jan Mayen Moll., p. 5. 
1878. — —  —  Koserr, Illustr. Conchylienb., p. 80, pl. 30,-fg. 4. 
1878. — — — VerkrÜzeN, Zur Fauna von Neu-Schotl. und Neufundl. in Jahrb. d. d. Malak. 
Ges. V, p. 214. 
1878. — — —  MonrTerosaTo, Enum. e Sinon., p. 36. 
1879. — —  — Norman, Moll. of Bergen Fjords #7 Journ. of Conch. Il, p. 28, 74. 
