1857. 
1858. 
1858. 
1859. 
1863. 
1867. 
1867. 
1868. 
1869. 
1869. 
1870. 
1870. 
1870. 
1872. 
1872. 
1872. 
1873. 
1873. 
1873. 
1873. 
1874. 
1874. 
1874. 
1877. 
1877. 
1877. 
1877. 
1877. 
1877. 
1877- 
1878. 
1878. 
1878. 
1878. 
1879. 
1881. 
1882. 
1882. 
1883. 
1884. 
1884. 
1884. 
1885. 
1885. 
ns 
Cylichna alba Brown, Mac Axprew et Barrerr, Dist. Moll. Nordland and Finmark ir Ann. and Mag. 
_—_ 
of Nat. Hist. 2d Ser. XX, p. 270, 271. 
H. et A. Apams, Genera of rec. Moll. IT, p. 10. 
M. Sars, Arctiske Molluskf. Norges in Forh. Vidensk. Selsk., p. 48. 
DanreLssen, Beretn. om en Zool. Reise, p. 36. 
M. Sars, Geol. og. Zool. Jagtt., p. 12. 
Jerrreys, Brit. Conch. IV, p. 417, pl. vin, fig. 12 (radula); V (1869), p. 223, pl. 
xCIn, fig. 6. 
Jerrreys, Fourth Rep. on dredg. Shetland Isles i#7 Ann. and Mag. of Nat. Hist. 
34 Ser. XX, p. 253. 
M. Sars, Forts. Bemaerk in Vidensk. Selsk. Forh., p. 257. 
Môrca, Catal. Moll. Spitzberg in Mém. Soc. Malac. de Belgique, IV, p. 13. 
Bulla alba Brown, Perir DE LA SaussaAve, Catal. test. mar., p. 102. 
Cylichna alba Brown, Gouzp et Bey, Rep. Invert. of Massachusets, p. 220, fig. 511. 
G.-O. Sars, Christianiafj. Fauna II, p. 67. 
Jerrreys, Norw. Moll. #7 Ann. and Mag. of Nat. Hist. 4th Ser. V, p. 448. 
Jerrreys, Moll. of Europe and N. E. America in Ann. and Mag. of Nat. Hist. 
4th Ser. X, p. 241. 
VerriLL, Distr. mar. anim. on the S. Coast of New England in Ann. and Mag. 
of Nat. Hist. 4th Ser. IX, p. 96. 
Brôccer, Bidr. Kristianiafjord. Molluskfauna, p. 8, 16, 21. 
Tryon, Amer. mar. Conch., p. 102, pl. 13, fig. 208. 
Môrcx, Moll. de la Nouv.-Zemble in Journ. de Conch. XXI, p. 37 (var. $ cor- 
ticata). 
WeinkAurFr, Catal. Meeresconch., p. 26. 
G.-O. Sars, Bidr. Dyrelivet Havbanker, p. 84. 
Verrizz et S. I. Suirx, Invert. anim. of Vineyard Sound, p. 369, pl. xxv, fig. 163. 
VerrizL, Dredg. Exp. N. Engl. in Amer. Journ. Sc. a. Arts 3d Ser. VII, p. 4r2. 
cylindracea, Môpius (non Pennant), Zweite Deutsche Nordpolarfahrt, p. 250, pl. 1, fig. 4-0. 
alba Brown, Jerrreys, Adress Biol. Sect. Brit. Assoc., p. 4. 
Jerrreys, Moll. of the « Valorous » Exp. in Ann. and Mag. of Nat. Hist. 4th 
Ser. XIX, p. 333. 
Jerrreys, Arctic Moll. in Ann. and Mag. of Nat. Hist. 4th Ser. XX, p. 237. 
FeiLpen, Post-tert. Beds of Grinnel-Land and N. Greenland in Ann. and Mag. 
of Nat. Hist. 4th Ser. XX, p. 488. 
Jerrrevs, Post-tert. Beds of Grinnell-Land and N. Greenland in Ann. and Mag. 
of Nat. Hist. 4th Ser. XX, p. 40. 
Môürcx, West Greenland Moll. in Rink’s Greenland no 17. 
Bulla (Cylichna) alba Brown, E.-A. Suira, On arctic Moll. in Ann. and Mag. of Nat. Hist. 4th Ser. 
XX, p. 130. 
Cylichna alba Brown, G.-O. Sars, Moll. Reg. Arct. Norv., p. 283, pl. 17, fig. 15 et var. corticata : pl. 17, 
fig. 162, 16b. 
KoseLr, Illustr. Conchylienbuch, p. 172. pl. 50, fig. 26. 
Lecxe, Novaja Semlja, p. 72. 
VerkrÜZEN, Zur Fauna von Neu-Schottland und Neufundland in Jahrb. d. Ma- 
JAROZAGES NPD LT. 
Frrece, Nordmeer exp. Moll. ir Jahrb. d. Malakoz. Ges. VI, p. 283. 
Verrizz, Recent. Addit. Moll. New. Engl. in Proc. U. S. Nat. Mus., p. 408. 
Van Liprx DE Jeuve, Moll. « Willem Barents », p. 11. 
Cooke, Mac Andrew Collect. in Quart. Journ. of Conch. III, p. 358. 
Jerrreys, Moll. « Triton » Exp. in Proc. Zool. Soc. of Lond., p. 393. 
Jerrreys, Sh. Bridlington Quay in Quart. Journ. Geol. Soc. of Lond., p. 320. 
Verrizz, Second Catal. Moll. New England in Trans. Connect. Acad. VI, 
p: 273; 283: 
Nogre, Mol. do Noroeste de Portugal, p. 51. 
VerRiLL, « Albatross » Expl. in Rep. Fisheries, p. 571. 
Herzensrein, Murmanküste, p. 704. 
