— 278 — 
Trochus (Margarita) undulatus Puicurer, Die Kreiselschnecken in Syst. Conch. Cab. 2e Ed., p. 251, 
DLL 
—  Leachi Puiriprr, Die Kreïselschnecken :# Syst. Conch. Cab. 2e Ed.,p. 247, pl. 37, f. 6. 
Margarita undulata Sow., Lovén, Index Moll. Scand., p. 20. 
— — var. érochiformis Mac Axprew & Forges, New or rare Br. Anim. i# Ann. & Mag. 
N. H. rt Ser. XIX, p. 97. 
— sulcata Mivpexporrr, Malac. Ross. Il, p. 73, pl. VIII, £. 45, 46. 
— undulata Sow., Minpenporrr, Malac. Rossica II, D:72: 
Trochus undulatus Sow., Forpes & HanLev,Br. Moll. Il, p. 528, pl. LXVIIL, f. 1, 2 ; pl. LXXIII, f. 5,6. 
— —  Forses, Infra-litt. distr. mar. Invert. in Rep. Br. Ass., p. 223. 
Margarita undulata Sow., Srimpson, Shells of New-England, p. 31. 
— —  — M. Sans, Beretn. Zool. Reise in Nyt Mag. f. Naturv. VI,p. 182. 
— groenlandicus Ch., Môrcx, Catal. Yoldi, p. 152. 
— undulata Sow., M. Sars, Adr. Havs Faunain Nyt Mag. f. Naturv. VIII, p. 381, 387. 
— — G.B. Sow., S. Woo», Crag Moll. IT, Appendix, p. 321 ; supplement, p. 83, pl. V, 
fig. 118, 11 b. F 
— —  Sow., Srimpson, Invert. of Gr. Manan, p. 23. 
Trochus (Margarita) undulatus M'Anbrew, Geogr. Distr. test. Moll., p. 6, 7, 11, 45. 
—  undulatus Sow., CLark, Brit. mar. test. Moll., p. 317. 
Margarita undulata M'Axprew, Rep. N. E. Atl. Moll. in Rep. Br. Ass., p. 119, 147. 
— — Mac Axprew & BarreTr, Moll. obs. betw. Drontheim and the North Cape in 
Ann. & Mag. N. H. 2d Ser. XVII, p. 380. 
— groenlandica Môrcx, Catal. Suenson, p. 52. 
—  undulaia Mac Anprew & BarrerT, Distr. Moll. Nordland & Finmark in Ann. & Mag. 
N. H. 24 Ser. XX, p. 267, 268, 270, 271. 
— — Sow., M. Sars, Arctiske Molluskf. Norges in Forh. Vidensk. Selsk., p. 46. 
— Grünlandica Ch., H. & A. Apams, Gen. ofrec. Moll. I, p. 433. 
— undulata Sow., Forses & Gonwin-Ausren, Nat. Hist. of the Eur. Seas, p. 75, 202. 
— — —  DANIELSSEN, Beretn. om en Zool., Reise, p. 27. 
— undulatus Sowersy, Il. Ind. Br. Sh. XI, p. 21. 
— gronlandica Ch., Mürcx, Catal. Lassen, p. 23. 
— undulata Sow., CarPexter,Rep. Moll. W. Coast of N. Amer. in Rep. Br. Ass. f. Adv. of Sc., 
p. 561. 
Trochus groenlandicus Ch., Jerrreys, Brit. Conch. El, p. 208 ; t. V (1860), pl. 67, f. 5. 
— — Jerrreys, Dredg. Hebrides 27 Ann. & Mag. N. H. 34 Ser. XVIII, p. 388. 
— (Margarita) groenlandica Ch., Môrc#, Faunula Moll. Islandiae in Vidensk. Meddel., p. 216. 
— — — Ch., Môrcu, Faunula Moll. Ins. Färôens., p. 20. 
Margarita grünlandica Ch., Môrca, Catal. Moll. Spitzberg in Mém. Soc. Mal. Belg. IV, p. 23. 
— groenlandica Petit DE LA Saussaye, Cat. Test. mar., p. 112. 
Trochus groenlandicus Ch., Jerrreys, Brit. Conch. t. V, pl. 61, fig. 5 (voyez aussi Jerrrevs 1865). 
Margarita undulata Gourp & Bnwey, Inv. of Mass., p. 280, fig. 541. 
— — ScHmMtDT, Mammuth Exp. in Mém. Acad, St-Petersb. VIIe Sér. XVIII, p. 50. 
—  groenlandica Woon, Crag Moll. Suppl., p. 83, pl. V, fig. r1. 
Trochus groenlandicus Jerrreys, Moll. of Europe and E. N. Amer. in Ann. & Mag. N. H. 4th Ser. X, 
p. 243. 
a — G. O. Sars, Bidr. Dyrelivet Havbanker, p. 84. 
Margarita groenlandica Ch., Môrcx, Moll. de la Nlle Zemble in J. de Conch. XXI, p. 37. 
— groenlandica Ch., Wemkaurr, Catal. Meeresconch., p. 40. 
— undulata Sow., TRYON, Amer. mar. Conch., p. 80, pl. 12, fig. 174. 
Trochus groenlandicus Ch., Môgius, Zweite Deutsche Nordpolarfahrt, p. 248. 
Margarita grünlandica Ch., Friece, Tungebevaebningen hos de Norske Rhipidoglossa in Arch. for 
Math. og Naturvid., p. 300, pl. 4, fig. 42 4b 4c (radula). 
—— groenlandica Müll., Verkrüzen, Moll. from S. John's Newfoundland, p. 7. 
Trochus Groenlandicus Ch., Norman, Ten days dredg. at Oban in Quart. Journ. of Conch. I, p. 278. 
Margarita Groenlandica Ch., Frige, Jan Mayen Moll., p. 4. 
— grünlandica Ch., G. O. Sars, Moll. Reg. arct. Norv., p. 133, pl. 17, fig. 9 (radule) (avec 
undulata comme synon.) 
