1856. Lacuna crassior Mont., Mac Anprew, Rep. N. E. Ati. Moll. #7 Rep. Br. Ass., p. 122, 140. 
1857. 
1858. 
1858. 
— — Gray, Guide Syst. Distr. of Moll. in the Brit. Mus., p. 93. 
(Medoria) crassior Mont., H. & A. ADams, Gen. of rec. Moll. I, p. 310. 
Lacuna crassior Mont., Jerrreys, Gleanings in Brit. Conch. in Ann. and Mag. N. H., 34 Ser. I, p. 44; 
IT, p. 126. 
— —  Sowery, Illustr. Ind. Brit. Sh., pl. xn, fig. 20. 
— —  Jerrreys, Further Gleanings in Brit. Conch. in Ann. and Mag. N. H., 34 Ser. 
III, p. 108. 
— — Jerrreys, Addit. Gleanings in Br. Conch. in Ann. and Mag. N. H., 34 Ser. 
IV, p. 195. F : 
— —  Pernir, Nouveau Suppl. Catal. Moll. France i# Journal de Conchyliologie VIII, 
255" 
— —  Jerrreys, Brit. Conch. III, p. 344; t. V (1869), pl. Lxiv, fig. 2, 2. 
— —  Jerrreys, Brit. Conch. V, pl. Lxiv, fig. 2, 2. 
— —  Perir, Catal. test. mar., p. 123. 
— —  S. Woo, Crag. Moll. Supplement p. 8o (cité avec #). 
— — Weikaurr, Catal. Meeresconch., p. 17. 
— —  WaeinkaAurr, Catal. Meeresconch., p. 17 et var. glacialis Müller. 
— — Mac Ixrosx, Moll. of St Andrews in Ann. and Mag. N. H., 4th Ser. XIII, 
P: 422. 
— — Lecxensy & Marsxazz, North Sea Dredg. in Ann. and Mag. N. H., 4th Ser. 
XVI, p. 392. 
— —  LanGpow, List. mar. Sh. of Hastings i#7 Quart. Journ. of Conch. I, p. 07. 
— —.  P. Fiscxer, Distrib. géogr. Brach. et Moll. du litt. océan. de France, p. 20. 
(Medoria) crassior Mont., KopeLr, Illustr. Conchylienb., p. 126, pl. 46, fig. 16. 
divaricaia, FRIELE (non Fabr.), Spitzberg. Moll. in Jahrb. d. Malak. Ges. VI, p. 274 (teste ipso). 
crassior Mont., Cook, Macandrew Collect. in Journ. of Conch. IIT, p. 364. 
— —  Jerrreys, « Lightn.» and « Porcup.» Exp. in P. Z. S. L., p. 100. 
— — Cunpazz, Moll. coll. at Ilfracombe in Journ. of Conch. IV, p. 148. 
(Medoria) crassior Mont., P. Fiscxer, Man. de Conch., p. 710. 
crassior Mont., SmarT et Cooke, Mar. Sh. of Scilly in Journ. of Conch. IV, p. 206. 
— —  HEerzENsTEN, Beitr. zur Fauna der Murmanküste, p. 681. 
— —  Locarp, Prodr. Malac. franç., p. 201. 
(Medoria) crassior Mont., Tryon, Man. of Conch. Str. and Syst. IX, p. 267, pl. 50, fig. 76. 
— — —  Parrezr, Catal. Conch. Sammil. I, p. 413. 
crassior Mont., Bizet, Catal. Moll. Somme, p. 114. 
— — Norman, Museum Normanianum IV, p. 14. 
— —  KogeLr, Prodr. Faunæ Moll. test. maria Europ. inhab. p. 170. 
= —  Locarp, Coq. mar. des côtes de France, p. 194. 
— —  DAuTzENBERG, Liste Granville et Saint-Pair, p. 0. 
— —  Byxe, Mar. Moll. of Teignmouth 7 Journ. of Conch. VII, p. 180. 
— -— Cooper, Dorsetsh. mar. Sh. in Journ. of Conch. VII, p. 435. 
— —  Cuaster et Hraracote, Moll. of Oban in Journ. of Conch. VII, p. 296. 
— —  Trecezces, Mar. Moll. of Cornwall in Journ. of Conch. VIII, p. 200. 
— — MarsHazz, Addit. to Brit. Conch. in Journ. of Conch. VIII, p. 73. 
— —  CHAsTEer, Dredg. off Ballycastle in Irish Naturalist VI, p. 123. 
— —  Possezr, Consp. Faunæ Groenl., p. 228. 
— —  SPAn, Mar. Moll. of Tenby in Journ. of Conch. IX, p. 208. 
— — Marre, Liste Coq. Cancale, p. 5. 
(Medoria) crassior Mont., DAUTzZENBERG et Duroucxoux, Faunule de Saint-Malo. p. 8. 
crassior Mont., CHastTer, M£Lvizz, Kniçar, Hoye, List of Brit. mar. Moll. in Journ. of Conch. 
X, p. 17. 
— —  MayræLp, Norfolk mar. Moll. ir Journ. of Conch. X, p. 50. 
— —  FriwLe & Grec, Norw. North Atl. Exp. III, p. 72. 
— —  GorDown, Our Country’s Shells, p. 123, pl. 23, fig. 392. 
— —  Marrez, Liste Coq. Cancale, Supplément, p. 3. 
