64 LIMNiEID^ 



1837. Aniphipeplea glutinosa, b. involuta, Thompson : Beck, 

 Index Moll, p. 116. 



iQ-r» r T- ■ 1 . [HarvevMS. : Thompson, Ann. 



loHj,f Limneus involutus, \ „■' j,,f yy rr-^f 09 



Mar. \ Amphipeplea involuta, j , • "^' ' * •> ' P- -'> 



1840, 'I Amphipeplea involuta, Harvey : Gray, in Turton's 



Apr. j Manual, new ed., p. 245, pi. xii, f. 147. 



Post 1 



q , I LymncBa involuta, Harvey : Brown, Illust. Conch. Brit., 



5'Jg;| ed. 2, p. 29, pi. xviii, f. 5. 



1845. Lymnaia involuta, Harvey : Brown, Illust. L. & F.-W. 



Conch. Brit., p. 13, pi. ii, f. 24 & 25. 

 1852. Limnceus involutus, Harvey : Forbes & Hanley, Brit. 



Moll, iv, p. 184, pi. cxxii, f. 11 ; cxxxii, f. 12. 

 1857. Amphipeplea involuta, Harvey : Gray, in Turton's 



Manual, new ed., p. 214, pi. xii, f. 147. 



1862. Linmcca involuta, Thompson : Jeffreys, Brit. Conch., 



i, p. 103; V, pi. vii, f. 2. 



1863. Linmma involuta, Harvey : Reeve, L. & F.-W. Moll 



Brit. Is., p. 168, figs. 

 1885. LimncBa {Gulnaria) involuta, Harv. : Westeulund, 



Fauna Paldarct. Region, v, p. 40. 

 1905. Lyinncea {Cycloliinncca) involuta, Harvey : Dall, Harri- 



man Alaska Exped., xiii, p. 64. 



First recorded as British in 1837, by W. Thompson. 



{See ref. above.) 

 British Distribution in Time : Recent. 



10. Limnaea (Cyclolimnsea) praetenuis, Bowell. 



Etym. : — Lat. prcctenuis, very thin. 



1908. Limncca prmtenuis, n. sp. : Bowell, Irish Naturalist, 

 xvii, p. 46, pi. i, B. and figs. 



First recorded as British in 1907, by A. W. Stelfox & 

 J. N. Milne (Irish Nat., xvi, p. 287, pi. xxxvi), as 

 LimncBa sp.l. 



British Distribution in Time : Recent. 



Genus : 2. MYXAS (Leach MS.), J. Sowerby. 



Etym. : — Gr. fx.v^a, mucus, slime of snails. 

 Type : — Buccinum glutinosum, Miiller. 

 {By,ccinum, Bulimus, Helix, vett. auctt.) 



1819. Myxas : Leach, Moll. Brit. Synop. (proofs), p. 108. 

 1822. Myxas, Leach's MS. : Sowerby, Genera Shells, no. 7, 

 Limnea [p. 3], f. 5. 



