PISIDIUM 309 



1. Pisidium amnicum (Miiller). 



Etyni. : — Lat. (iinincus, pertaining to a river. 



1774. Tellina amnica : Muller, Verm. Hist., ii, p. 205. 

 1791. Tellina amnica: Gmelin, in Linn. Syst. Nat., ed. 13, 



i, pt. 6, p. 3242. 

 1797. Tellina rivalis : Maton, Trans. Linn. Soc, iii, p. 44, 



pi. xiii, f. 37, 38. 

 1801. Cyclas palustris : Draparxaud, Tabl. Moll. France, 



p. 106. 

 1803. Cardium amniciun, Gniel. : Montagu, Test. Brit., p. 80. 

 1805. Cyclas palustris : Draparxaud, Hist. Moll. France, 



p. 131, pi. X, f. 17 & 18 (err. pro 15 & 16). 

 1807. Tellina amnica, Miill. : Matox & R.a.ckett, Trans. Linn. 



Soc, viii, p. 60. 

 1810. Tellina amnea : [Author ?] Ency. Brit., ed. 4, vi, p. 40G. 

 1813. Tellina amnica : Rackett, in Pulteney, Cat. Dorset., 



ed. 2, p. 31, pi. vii, f. 2a. 

 1813? Cyclas amnica, Miill. : Fleming, Edinh. Ency., vii. 



p. 92. 



1817. Tellina amnica, Miill. : Dillwyx, Cat. Shells, i, p. 105. 



1818. Cyclas {Corneocyclas) atnnia [sic] : Ferussac in litt., 



Blaixville, Diet. Sci. Nat., xii, p. 280. 

 1818. Cyclas obliqua [n. sp.] : Lamarck, Hist. Anim. s. Vert., 



V, p. 559. 

 1821. Pisidium obliquum. Lam. : C. Pfeiffer, Naturg. Deutsch. 



Moll, i, p. 124, pi. V, f. 19, 20. 

 1823. Tellina amnica : [Browx], Ency. Brit., ed. 6, vi, p. 408. 



1826. Cyclas amnica, Gmel. : Ris.so, Hist. Nat. Ewrop. merid., 



iv, p. 338. 



1827. Cyclas obliqua. Lam. : Beowx^, Illust. Conch. Brit., ed. 1, 



pi. xvii, f. 14. 



1831. Cyclas amnica : Turtox, Manual, p. 15, f. 5. 



1832. Pisidium a)nnicum, Miill. : Jexyns, Trans. Camb. Phil. 



Soc, iv, p. 309, pi. xLx, f. 2. 



1832. Pera fluviatilis. Leach MSS. : \ Jenyns, t. c, p. 310, in 



1832. Pera Henslowiana, Leach MSS. :J synon. 



1838. Pisidium inflatum : Megerle, in Porro, Malac. Comasca, 

 p. 121, pi. ii, f. 13 : cites :— " Syn. Cyehis 

 pfeifferi, Zeigler (sec. Stenz.)." 



1840,^ Pisidium amnicum, Miiller : Gray', in Turton's Manual, 



Apr. J new ed., p. 285, pi. i, f. 5. 



Post 1 



Q . I Pisidium obliquum, Lamarck : Brown, Illtist. Conch. 



jg^Q I Brit., ed. 2, p. 94, pi. xxxix, f. 22. 



1845. Pisidium obliquum, PfeiSer : Brown, Illust. L. <£■ F.-W. 



Conch. Brit., p. 118, pi. xxiv. f. 7, xxvii, 



f. 1 & 2. 

 1847. Pisum amnicutn : Gray, Proc. Zool. Soc, xv, p. 184. 

 1849. \Piscidium amnicum : Brown, Illust. Foss, Conch., 

 [1846?]/ p. 210, pi. Ixxxvi. f. 10. 



