93 



185r,. Litorina villala Pliil., 

 1856. — limât a Lov., 

 1836. — arctlca Môll., 

 1856-63. Littorina obtusata, Lin. 



1856. — 



1857. 

 1857. 

 1857 



littoralis 



palUata Say, 



— groenlandica var. 

 laevior 



1857. — obtusata Lin., 



1858. — lUtoralis — 



1858. Turbo rctusus Lam., 



1858. — Neritoides 



1858. Littorina palliala Say, 



1858. — • (Neriloidcf;) ohlHsalalÀn., 



1859. — — obtitsatus — 



1859. — — neriloides 



1859. — lilloralis Lin., 



1859. _ _ _ 



1859. — t(ibalis Tiirt., 



1859. — palliala Say, 



1859. — limata Lov., 



1859. — littoralis var. fahalis 



KusTER, ibid., p. 13, pi. 2, fig. 8, 



9. 

 KûSTER, ibid., p. 13, pL 2, fig. 10, 



11. 

 KûSTER, ibid., p. 15, pL 2, fig. 1-i, 



15. 

 Troschel , Das Gebiss der 



Schnecken, I, p. 134, pL XI, 



flg. 1. 

 Mac Andrew et Barrett, List 



Moll. obs. befw. Drontheini 



and the North Cape, in .4nn. 



and Mag. Nat. Hist., 2^ Ser., 



XVn, p. 380. 

 Reeve, Conch. Iconica, pL VII, 



fig. 34 a, 34 b. 

 Reeve, ibid., pi. VII, fig. 31a, 



31 &. 



MôRCH, Prodr. Faunae GroenL, 



p. 8. 

 MÔRCH, ibid., p. 8. 

 M. Sars, Bidr. arct. Molluskf. 



Norges, p. 44, 72. 

 Maitland, in Herki.otz, Week- 



dieren van Nederland, II, p. 82. 

 Maitland, in Herklotz [non 



Linné), ibid., p. 82. 

 H. et A. Apams, Gênera of rec. 



MolL, I, p. 313. 

 H. et A. .\dams, ibid., p. 314. 

 Chenu, Man. de Conch., I, p. 300, 



fig. 2110, 2111. 

 Chenu [non Linné), ibid., I, p. 300, 



fig. 2109. 

 Danielssen. Beretn. Zool. Reise, 



p. 28. 

 SowERBY, IIL Ind. Brit. Shells, 



pi. XII, flg. 20, 21. 

 SowERBY, m. Ind. Brit. Shells, 



pi. XII, fig. 22. 

 SowERBY, m. Ind. Brit. Shells, 



pi. XII, fig. 24. 

 ToRErx, Bidr. Spilzb. Molluskf.. 



p. 33. 

 Jeffreys, Addit. Gleanings in 



Brit. Conch., in Ann. and Mag. 



Nat. Hist., 3d Ser., IV, p. 195. 



