Illustrations of the recent conchology of Great Britain and Ireland, with the description and localities of all the species, marine, land and fresh water

lNVOLUTE.] MOLLUSCA. 29 ,1. Lnrn,EA EL0NGATA, pi. XV, f. J, 2, 3, an<l 5.-First Ed., pi. ,12, f. 1, 2, 3, :tllll 5. L!Jmncus clongatus, Drapcrnaud, p. 52, pl. 3, f. 3, ,¡; Turton, l\fan., P· 122, f. l 06; Al<lcr, Mag. Zoo!. and Bot., II, p. 115; L!Jmnam lcucostoma, Lamarck, An. San. Vcrt., VI, pi. 2nd, p. ~ 62; ~ym1ueus clo11gat·us, Rossmasslcr, Icon., I, p. l Ol, pl. 2, f. 08; Lwmca elongata, Sowcrby, Genera, f. 6; Limneus glabe,·, Thompson, Ann. and Mag. Nat. Hist., VI, p. 32; Ilcli.1: octan- fracta, Montagn, Test. Brit., p. 396 and 588, pi. 11, f. 8; Brown, Ency. Brit., VI, p. 461; llcli.t· octona, Pennant, Brit. Zoo!., IV, p. 138, pi. 8, f. 139; Jleli.v pe,·ig1·ina, Dillwyn, Des. Cat., p. 95,1 ; Stagnicola ocllt11fracta, Leach, l:lfoll., p. 141. Shell horn-coloured, smootb, pellucid, greatly elongated; bocly not half the length of the shell; spire long, tapering, con- sisting of seven or eight slender, gradually diminishing, some- what cylindrical volutions, terminating in an acule apex, these are very slightly wrinkled longitudinally, ancl the lower volutions sometimes obscurely striated transversely; aperture oblong, not a third the length of the spire; outer lip thin; inner lip white, ancl slightly reflected on the columella. This species is subject to variety, both in size and form, as will be seen by a. refcrence to our figures; in sorne the spire terminales in a decollatecl apex. It also varies in the numbcr of its volutions. Section I I .-Subovatc ; body vent1·icose ; apc1·ture lo11ge,· than the spfre. 5. LY~IN,EA AURICULARIA, pi. XV, f. 29, 30, 31, 32.-First Ed., pi. 42, f. 29, 30, 31, 32. Lymn(l!a auricula1·ia, Lamarck, An. San. Vert., VI, pt. 2nd, p, 161; Lymneus am·iculm·is, Brard, p. 140, pi. 5, f. 2; Tur- ton, Man., p. 117, f. l 00; Limnanis mwicula,·is, Pfeilfer, p. 85, pi. 4, f. 17, 18; Limneus amicularis, Drapernaud, p. 49, pi. 2, f. 28, 29, ami 32 ; Rossmassler, !con., I, p. 98, pi. 2, f. 55 ; .Jelfreys, Linn. Tr,, XVI, p. 372; Altler, Mag. Zoo!. ancl Bot., II, p. 115; Thompson, Ann, and Mag. Nat. Hist., VI, p. 29; Hclfa- ciuricularia, Linnrous, Syst. Nat., p. 1250; Pennant, Brit. Zoo],, IV, p. 138; Donovan, Brit. Sh., pl. 51, f. 1; Montagu, Test. Brit., p. 375, pl. 16, f. 2, and p. 381, pl. 16, f. l; Heli;,; limosa, Fleming, Brit. An., p. 275; Brown, \Vernerian Mem,, II, p. 531; lb,, Ency. Brit., VI, p. 461; Racli.v amiculatus, De Montfort, II, p. 207; Gulnai·ia au,•icularia, Leach, Moll., p. 148; Buccinum am·icula, l\füller, Verm., II, p. 126. Shell slightly ovate, thin, brittle, subpcllucicl, of a. pale yel- lowish horn colour; body very largc, vcntricosc, ancl slightly wrinkletl longitudinally; spire very short, consisting of three or four well dcfinccl volutions, terminating in an acule apex; aper- ture oblcng-ovate, extremely wide, anc\ largc; outcr lip greatly extended, and somcwbat reílectcd al the margin; pillar lip smooth, broadly reflcctecl on thc columclla, with a strong fold towards its lower part, anti forming a slight umbilicus behind. Founcl in the river Avon, the Kennct, Berkshire; ami in a clitch at Clonooncy, King's County, Ireland. · 6. LnIN,llA PEílEGRA, pl. XV, f. 8, 9, 10, 11, 36, 37, 38, 39, 40.-First Ed., pi. ,12, f. 8, 9, 10, 11, 36, 37, 38, 39, 40. Limnarci pe,·cg?"Ct, Lamarck, An. San. Vert., VI, pt. 2nd, p. 161; Limn(l!t1S percge,·, Pfciffcr, p, 90, pi. 4, f. 23, 2•1; Lim- neus pc1·ege1·, Drapernaud, P· 50, pi. 2, f. 34 and 37 ; Turton, .Man., p, 118, f. 101; Jelfreys, Linn. Tr., XVI, p. 37-1; Aldcr, 11 :tlfag. Zoo!. and Bot., II, p. 115; Thompson, Ann. ancl Mag. Nat. Hist., VI, p. 30; L!Jmna:a piitris, Flcming, Edin. Ency., VII, p. 77; L!Jmncea limosa, Fleming, Brit. J\n,, p. 2i4; Hcli:1, pc1·egrn, Gmelin, Linn. Syst. Nat., p. 3659; lVIontagu, Test. Brit., p. 373, pi. 16, f. 3; Ileli.v put,·is, Pennant, Drit, Zoo!., pl. 86, f. 137; Brown, Vlerncrian .Mem., II, p. 530; lb., Ency. Brit., VI, p, 461; Heli.i· limosa, Brown, \Vcrnerian ?iicm., ll, p. 530; Buccinwn pc·regrum, Miiller, Verm., II, p. 13·1 ; Gul- nai·ia pc1·e1¡e,·a, Leach, Moll., p. 146. Vai·ietg l. Ovate, apertm·e 11w1·e dilatecl, pi. XV, f. 8, !/, 1 O, 11.-Limn(l!a ovala, First Ed. pl. 42, f. 8, 9, 1 O, 11. Lynmcea ovala, Lamarck, VI, II, p. 121 ; Kenyon, Mag. Nat. Hist., II, p. 425, f. g; Lgmiueus ovatus, Pfciffcr, p. 8\J, pi. 4, f. 21 ; Limnl!'IIS ouatus, Drapernaucl, p. 50, pi. 2, f. 30, 31; Lymncus ovatus, Brarcl, p. 142, pi. 5, f. 4, 5; Lgm11<e11~· ouat11s, Rossmassler, lean., I, p. 100, pi. 2, f. 56; Limnca linenta, Bean, Mag. Nat. Hist., VII, p, •1!)3, f. 62. Vcwiety 2. Oute1· lip e:rpamlcd, a11cl with an i11tenwl rih, pi. XV, f. 37. Ileli:i· auriculctria, vm·., Maton and Racket, Linn. Tr., VIII, p. 218, pi. 5, f. 8 *; L-gm11eci margi11ata, Michaud, Compl., p. 88, pi. 16, f. 15, 16. Va,·iel!J 3. Shell small, stronge,·; spfrc but slightlg pro- clttcccl; the outc,· lip not attcnuatcd, pl. XV, f. 50, 51, ancl pi. XVIII, f. 17, 18.-Firsl Ecl., pi. 46, f. 50, 5 l. Ileli:1: tutea, Montagu, Test. Brit., p, 380, pl. 16, f. G; Matou and Rackct, Linn. Tr., VIII, p. 222. Vm·ict-g ,1. Spire aciitc, and tapering. L!Jmne11s acuhis, Jelfrcys, Linn. Tr., XVI, p. 373. Vm·iely 5. JVith tlw voltttions reversccl. Limnca lincata, Bcan, l. c.; Sturm, pi. 39, Shell ovale, thin, subpellucid, ycllowish horn-colourecl, slightly wrinklcd longitudinally; bocly very lumid, and large; spire vcry short, consisting of thrce or four rapidly dccrensing volutions, terminating in a sharp apex; aperturc very large, oval, about threc-fourths the length of thc shcll; outer lip thin; iuner lip broadly reílectcd on the columella. This species is suhject to considerable variety, hoth in form ancl size; and is plentifully diffusccl in almosl nll ditchcs, ponds, and lakes. · vVe found variety 2, of thc large size, figured in pi. XV, f. 10, 11, in tlilchcs at Bury, Lancashire, 7. LYMN,Ei\ INVOLUTA, pi. XVIII, f. 5. Limncus in·voltttus, Harvey; Alder, Mag. Zoo!. and Bot., JI, p. 115; Thompson, Ann. anti Mag. Nat. Hist., VI, P· 31. Shell very thin, pcllucid, shining, rendering the columella visi- ble Lhroughout its wholc length; colour, pale amber; body very largc, envcloping the spire, ancl providecl with coarse, longitncli- nal strim; spire very short, sunk, truncated at the apex, ami sometimes concave, consisting of three volution~, nono of which are visible in thc profile of the shell; apcrture very large, widc at the base, and extending to the apex; margin rcflcctcd only where it joins tite pillar. Length firn lincs and a half; breaclth three lines and a half. Its general aspect is not unlike Akei·ajlea:ilis, in consc<¡uence of the aperture cxlending to tite apex, and thc appearance of thc columella. This intercsting and new specics was discovered by Williarn Henry Harvcy, Ese¡., of Limerick, in a small alpine lakc on thc