1842. 
1843. 
1844. 
1844. 
1846. 
1846. 
1850. 
1851. 
1851. 
1851. 
1853. 
1853. 
1853. 
1853. 
1853. 
1855. 
1856. 
1856. 
1857. 
1857. 
1858. 
1858. 
1858. 
1850. 
1859. 
1862. 
1863. 
1863. 
1863. 
1863. 
1867. 
1868. 
1868. 
1869. 
1869. 
1869. 
1871. 
1871. 
1872. 
1873. 
1876. 
1877. 
1877. 
1877. 
1878. 
1878. 
1878. 
1878. 
Leda macilenta Srxensrrur in Môzcer, Ind. Moll. Groenl., p. 17. 
Nucula fluviatilis Sow., HanLey, Rec. Biv. Sh., p. 168. 
—  oblonga Browx, Ill. Conch. Gr. Br. & Irel. new edit., p. 84, pl. XXXIIL, fig. 17. 
—  rostrata MacerzzivrAy (non Mont.), Moll. Anim. of Scotland, p: 244. 
Leda — Forges (non Mont.), Mem. Geoï. Surv., p. 420. 
—  pernula Müll., Lovén, Index Moii. Scand., p. 34. 
— — —  S. Wocs, Crag Moll. II, p. 93, pl. X, fig. 134, 13b, 13e. 
—  tenuisulcata Couth., Srimrsow, Shells of New England, p. 10. 
—  pernila Müll., Gray, List of Brit. Anim. in the Brit. Mus., p. 67. 
— — — Sars, Beretn. Zool. Reise in Nyt Mag. for Naturv. VI, p. 173. 
Nuculana pernula Müll., Môrcn, Catal. Yoldi IT, p. 43. 
Leda pernula Müll., AsBIôRNSEN, Christianiafjordens Litoralf. in Nyt Mag. for Naturv. VII, p. 358. 
—  tenuisulcata Couth., Simpson, Invert. of Grand Manan, p. 21. 
Leda pernula Müll., M. Sars, Adr. Havs Fauna in Nyt Mag. f. Naturv. VIII, p. 300. 
— — — Mac, Malak. Bidr. Skand. Fauna in Gôteborgs k. Vet. och Vitt. Samh. Handl. 
Ny Tidsf. Heft IIL, p. 19. 
— — — Mac Anprew, List of Moll. from Spitzb. in Ann. & Mag. N. H. XVI, p. 455. 
— — — Mac Anprew, Rep. N. E. Atl. Moll. in Rep. Br. Assoc., p. 110, r4r. 
= — — Mac Anprew & Barrerr, Moll. obs. betw. Drontheim & the North Cape in Ann. 
& Mag. N. H. 2° Ser. XVII, p. 383: 
Nuculana pernula Müll., MôrcH, Catal. Suenson, p.47. 
Leda pernula Müll., Mac AnDrew & BarreTT, Distr. Moll. Nordland & Finmark in Ann. & Mag. N. 
H. 2d Ser. XX, p. 270, 272. 
— — — Mac, Hafs-Mollusker in Gôteborgs k. Vet. och. Vitt. Samh. Handl. Ny Tidsf. 
Heft IV, p. 21. 
— — —  H. & A. Apams, Gen. of rec. Moll. I, p. 547, pl. CXXVI, fig. 42, 4b. 
— — —  M.Sars, Arctiske Molluskf. Norges in Forh. Vidensk. Selsk., p. 58. 
— — —  DANïIELssEN, Beretn. om en Zool. Reise, p. 20. 
— — —  ToreLr, Bidr. till Spitzbergens Molluskf. p. 141. 
— — —  Srimrson, Mar. Shells from Hudson’s Bay in Proc. Acad. N. Sc. Philad., p. 97. 
— — —  Jerrreys, Brit. Conch. IL, p. 158 ; V (1869), p. 173. 
Nuculana pernula Müll., Môrcen, Catal. Lassen, p. 28. 
Leda pernula Müll., Hancey in Sowergy, Thes. Conch., pl. III (228), fig. 56 à 58. 
— — —  M.Sanrs, Geol. og Zool. Jagtt., p. 10. 
— — —  Jerrreys, Fourth Rep. on dredg. Shetland Isles in Ann. & Mag. N. H. 3d Ser. 
XX, p. 240. 
Nuculana pernula Müll., Môrcn, Faunula Moll. Islandiae in Vidensk. Meddel., p. 223. 
—. — —  Môrcu, Faunula Moll. Ins. Färôensium Suppl. in Vidensk. Meddel., p. 220. 
— — —  Môrcux, Catal. Moll. Spitzberg in Mém. Soc. Malac. Belg., p. 28 (var. arcuata 
long 28 mm, alt. 15 mm). 
Leda pernula Müll., Jerrreys, Brit. Conch. V, p. 173. 
— rostrata Perir DE LA SaussAye (non Mont.), Catal. Test. mar., p. 67. 
Nuculana pernula Müll., Môrcn, Synops. Moll. mar. Daniae, p. 62. 
Laeda pernula Müll., Reeve, Conch. Icon., pl. II, fig. 5a ,5b, 5e. 
Leda — —  Scaminr, Mammuth Exp. in Mém. Acad. St-Pétersb. VILe, Série XVIII, p. 67. 
—  rostrata WeinkAurr (non Mont.), Catal. Meeresconch., p. 61. 
—  pernula Müll., Jerrreys, Moll. coll. at Spitzbergen by Eaton in Ann. & Mag. N. H. 4th Ser. 
XVIII, p. 500. 
8 — —  E. A. Smrx, Moll. arctic Exp. in Ann. & Mag. N. H. 4th Ser. XX, p. 141. 
—— — —  Jerrreys, Post-tert. foss. Arctic Exp. in Ann. & Mag. N. H. 4th Ser. XX, p. 232. 
(et var. falcula). 
— — — Jerrreys, Post-tert. Beds of Grinnell Land and N. Greenland in Ann. & Mag. 
N. H. 4th Ser. XX, p. 480. 
— — —  G.O. Sars, Moll. Reg. arct. Norv., p. 35, pl. 5, fig. 14 à 14. 
— — —  Kogecr, Illustr. Conchylienb., p. 371, pl. 100, fig. 14. 
— — —  FRELe, Jan Mayen Moll., p.2. 
Laeda — —  Rezve, Conch. Icon., pl. IL, fig. 5, 5b, 5e. 
