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

faVOLUTE.] MOLLUSCA. 55 GENUS 3.-An10N.-Férussac. Shcll an oblong mass of granular, spongy, corncous suhstancc, cnvclopcd in thc manllc of thc animal, somctimcs consisting only of a fcw granules in a rudimcntary conditiou. Sect ion 1.-Shclt oval and co11cave. 1. AmoN H0I\TENS!S. Varicty 1. Animcrl black, with gray streaks. A1·io1~ ho,·tc11sis, Férussac, Moll., G, pi. 11, f. 4, 5, G, VIII, a, f. 2, 3, ,1; Gray, oled. Rcp., 1821; Thompson, Ann. and ilfag. Nat. Hist., VII, p. 18 ; Lima.v su1!fuscat·us, Pfciffcr, pi. '1, f. 20 ; L ima:i: ho1·tc11sis, Gralcloup, ~Ioll. Dax., p, 55, f. 4 ; L imaccltus varicgcitus, Turlon, Man., p. 25, pi. 3, f. 16, shcll; Limacclla co11cai;a, Brard, p. 121, shcll. Va,·icty 2. Animal gmy, with a black streak on botlt sicles. Ario11 hortc11sis, var, ~. Aldcr, Mag. Zoo\, and Bot., II, p, 105; Ario,~ circumscript-us, Johnston, Edin. Ncw Phi!. J ourn., V, p. 77; L ·ima:1:fasciatus, Nilsson, Fau. Succ., p. 3. Shcll oval, misshapcn, ancl somcwhat concave. Inhabils woocls in Grcat Britain ancl I rclancl ; in thc lattcr country, Thompson says it is common throughout the North. S ection 11.-Shell, if any, nearly circ-ula,·, spongy, and rudimentary. 2. Al\ION EMl'Jn!C0RUM, A1·ion empirico?'l11n, Férussac, Hist. Moll., 60, p. 17, p\. l, f. 23; Aldcr, Mag. Zoo\. ancl Bot., II, p. 105; Arion ate,·, Thompson, Ann. ancl lVIag. Nat. Hist., VII, p. 18; Lima.i· atei·, L inné, Fau. Succ., p, 507; Müllcr, Vcrm., II, p. 2 ; Draper- naud, p, 122, pi. 9, f. 3, 4, 5, 6; Nunncley, Trans. Phi\. Soc, Lcccls, p. 46, pl. 1, f. 1, pi. 2, f. 1, pi. 1, f. 1, 3, ancl 6; L imax R ,ifus, Drapcrnaud, p. 123, pi. 9, f . 6. Shcll spongy, sub-hcmispherical. This spccies is very common throughout Grcat. Britain ancl Irelancl , in gardens ancl woods. Miss M. Ball says the ycllow varicty is founcl in the North and South. GENUS 4-LrnAx,-Linnrous. Shcll oblong, subquadratc, scutiform, cxtremely thin, and crystallinc; covcrecl wilh a pale brown epidermis, which extcnds beyond thc margin of thc shell ; apex roundcd, not convolutc, but proviclecl with a cavity al the top. S ection I-11fantle of tlu: animal p1·od-uced beliind; shell dnpressed. l. LrnAx MAxrnus, pi. XVIIIt f. 17. Lima:1; mct.i·iinus, Linnrous, Syst. Nat., p. 1081, No. 4; Thompson, Ann. and Mag. Nat. H ist., VI, p. 18; Lima:r cine,·eus, Müller, Verm., II, p. 8, No. 204; Gmelin, Syst. Nat., I, P· 3101; Alder, Mag. Zoo\. ancl Bot., II, p. 105; Forbes, Mal. Mon., p, G; L ima:1: a11tiquo1·1m1, Férussac, H ist., p. 68, pi. 4, f. 8, c1, f. 1, pi. 4, f. 4, shell; L ima.1,• maculatus, Lcach, MSS.; Nunnclcy, Trans. Phi!. Soc. Lccds, I , p. 46, pi. l , f. 2; Lima- cella P ttrma, Brard, p, 110, pi. •1, f. 1, 2, 9, 10, shell; Lima- ccllus Pa?'lna, Turton, Man., p. 24, pi. 2, f. 14, shcll. Shell thin, cream-white, snbcliaphanons, depressecl, slightly concavc intcrnally; apcrturc ncarly the wholc size of thc shcll, with the margin of the outer lip mcmbrauaccous, and very thin; externa! surfacc slightly wrinkled trans1•ersely, ancl sometimcs studclccl with minute, glistcning, crystalline particles; npophysis of adhcsion, small, prominent, sitnatc on the extremity of the top, or broa<ler encl ; opposite encl ronnclccl, and very · thin. L cngth about six liues; breadth four lines, This spccies is common ali over Grcat Britain ali() Irelancl, ancl thc Isle of Man, frequenting thc bolloms of he<lges and clamp situations. The Rev. B. J. Clnrkc, of Tuam, has kindly scnt me a draw- ing of a very distinct 1•aricty of this animal. Section 11.-Slwlt clep,·cssccl ; 111m1tlc of the animal slwrt, and posteriody 1·01mdccl. 2. LIMAX FLA\'US, pi. XVIII,• f. 18. L ima:i:jlavus, Linnrous, Syst. Nat., p. 1082; lb., Fan. Succ., p. 363, No. 2092; Pcnnanl, llrit. Zoo!., IV, p. •11 ; Latham, L inn. Trans., I, p. 182 ; Thompsou, Ann. all(I Mag. Nat. Hist., VI, p. l 8; Limct,i· vai·iegatus, Drapernaud, p, 127 ; F érussac, Prod., p. 21; l b., Hist. Moll., p. 71, pi, 5, f. 1 to G; Aldcr, l\'Iag. Zool. and Bot., II, p. 105 ; Nunncley, Trans. Phi!. Soc. Lceds, I, p, 47, pi, 1, f. 3; L ima.i· succi110 colore, L ister , Conch., pi. l O1, f. 6 ; Limctcclla concavct, Brard, p. 121, pi. 4, f . 5, 6, 13, 14, shell; Limaccltus va,•icgat·us, Turton, Man., p. 25, pi. 3, f . 1G. Shell cxtrcmely thin, shield-shapetl, slightly concave; anterior cdge a littlc rounclecl; posterior encl mammilliform ; of a pale, ycllowish colour. F rcquents cc11ars, in London and its vicinity, and has becn met with at Oxford, Plymoulh, llrislol, ancl Bath; ali() was dis- covcrccl at Youghal, Jreland, by Robert llall, Esq., ancl has also becn foun<l in the North by William Thomp5011, Esq., of Bclfast. Scction III.-1'fantlc slio1·t, t1·1t11catcd beliind; shcll tlliclc, conve:i:: bcncath, a11cl oval. 3 . LIMAX CARINATUS, pi. XVIII,* f. 19, L ima:i; ca1·inatus, Lcach, J\Ioll., p. 73, pi. 8, f. 1 ; Alder, Mag. Zoo). and Bol., II, p. 105; Thompson, Ann. and Mag. Nat. I-list., VI, p. 63; L ima.i· Sowc1·bii, Férussac, Hist. Moll., pi, S, f. 7, 8; Denson, Mag. Nat. Hist., VI, p, G94, f . 120, a, b; L imacclla un-g-ulata, Ilrard, P· llG, pi. 4, f. 3, 4, 11, 12; L ima- ccllus ungulatus, Turton, Man., p. 25, pi. 3, f. 15. Shell oval, or rhombic, ralher thick, ancl convcx bcneath, of 'a palc crcam-white; margin rathcr broad, rufous t owards the top; destitute of a membranc, and nevcr concave. l\fr. Clarkc rcmarks, that "the peculiar thickcning proccss in the centre givcs t.hcm· the appcarancc of having a marginal zone, or as if a smallcr sizccl shcll werc placed on the top an<l centre of the larger, leaving a rather broad margin, which is usually of a rufous colour lowarcls the top.'' lnhabits gardens, in thc 1·icinity of Lonclon, and at Hamp- stcacl; also at La Bergeric; MonÍ\'ea, County of Galway, undcr stones in tielcls, ancl in lnft ccl plants in gardens, accordiug to tho Re,·. B. J. Clarke, by whom it was tirst noticccl in Irelancl. l\1r. Thompson (p, 63) mentions a spccies obtaincd by him, in 1840, near Clifden, Connemara, Jreland, whilc on a tour with Profcssor Forbcs, King's Collcge, L ondon, and Robt. Ball, Esq., of the Castle, D ublin, which werc more nearly allicd to the L. gagates of Drapernaud, thnn the British spccimens of L. cai•i~ natus. Mr. Ilall has since found it on the Circular roacl, Dublin.