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

50 MOL!'...USCA. [TRACHEl,IPODA foint indication of spiral bands, Colonel Montag~ observes, that "in shape it is a medium between Heliz v1rgata and ,·adiata • it is not so producecl as the former, nor so flat as the 1 : ti bands or fasci:c at the base it somewhat resem- atter ; m 1e • ' . . . ,, bles the first, and in being strongly str1ated 1s hke _the l".5t•. This is a local species, and has been found m W1ltslure, South Devonshire, Cornwall, and Cumberland. It is plentiful in the neighbourhood of the Old Quarry, back of and also at the base of thc clilfs in front of Salisbury Crags, at Edinburgh. I found it plcntifully on mud walls at Naas, County of Kildare. Thompson says, it scems to prevail only in thc " southern half of thc island, and is plentiful where it does occur." He par- ticularises Glanmire, ncar Cork, by W. H. Harvey, Esq.; Kilkec Castle, near Dallitore, County of Kildare, La Bergerie, Queen's County, by Mr. Pattcrson, of Dclfast; and at Kingst owu, near Dublin, by T. W. Warren, Esq. 27. H ELIX PISANA, pi. XVII, f. 27, 29, 33, 35, 38, and 58~First Ed., pi. 40, f. 27, 29, 33, 35, 38, and 58. Hcli:,: pisa11a, Müllcr, Vcrm., II, p. 60, No. 255; Lamarck, An. San. Vert., pi, 2nd, p. 82; Ilossmasslcr, V, VI, p. 34, pi. 26, f. 259, a, b, e, d; Brown, Ency. Brit., 6th Ed., VI, p. 45!); Fleming, Ilrit. An., p. 259; Alder, Mag. Zoo\. ancl Bot., II, p. 109; Thompsou, :\nn. ami l\fog. Nat. Hist., VI, p, 28; llcli.i· ci11gemla, Montagu, Test. Drit., p. 418, pi. 2,1, f. 4; Maton and llackett, Linn. Tr., VIII, p.195, pi. 5, f. 6; Turlon, Drit. Fau., p, 188; lb., Man., p. 39, f. 30; .Jclfrcys, Linn. Tr., XIII, p. 333; Fleming, Edin. Ency., VII, p. ifJ; P hillippi, Enum. Moll. Sic., p. 131, No. 22; Ilcli.i· alb1111a, l\füllcr, Verm., II, p. 25, No. 22G; Ilcli:i: ::onm·ia, Pcnnant, Brit. Zoo\., IV, p. 137, pi. 8:;, f. 133; llcli,~ ,·hodostoma, Drapernaud, p. 86, pi. 5, f. 13, 1·1, 15; Tcb1, ci11gcmla, Leach, Moll., p. 92. Shell subpellucid, subglobose; body large; spirc small, con- sist ing of four volutions, thc three superior ones hut littlc clevalecl nbove tho others, ami terminating in an obtuse, de- pressed apex; body volution somewhat nngulnted, or llnttene<l above; base wcll roundcd, with a narrow :md deep umbilicus; aperturc semilunar, somewhat longer than wide; outer lip thin, as well as the pillar lip, which is abruptly reflected half over the umbilicus; whole surfacc of a cream-whitc, or ycllowish, with severa! spiral bands of cheslnut, or purplish-brown ; sometimes these are intcrruplcd, forming short, longitudinal, streaks or dots ; base gener:illy provided with one broad concentric band, al a little distancc from thc mnbilicus, but with lwo in some spccimens; near the aperture the colour is more or less rosente ; apcx dcfinecl by a black spiral line. Diameter gencrally three- quarters of an inch; length half an inch. But is subjecl t.o a considerable differencc in size. Fig. 32 ami 36, the young shell. A ,•ariely of this species is met with quite plain, ami in somc spccimens with only a fcw fnint zoncs on the body. This species bcars a considerable similitu<lc to ll. virgata, but it is larger ami broadcr, with a more dcprcssed apcx. This is onc of thc rarest, ami most bcautiful of our land shclls ; i:llontagu fon nd it on the south of Tenby, close to the sea shore, ami also on the wcsl of thal place. Thc Rcv. Thos. Ilackctt found it al St. !Yes, Cornwall, ancl was first disco\'Crcd in l rclallt l, near Balbriggan, on the County of l\:leath side of the strenm that diYides ti,at county from Dublin, by my friend ;\[. J. O' Kelly, Esq., of Hochcstown House, Counly of Dublin; Thos. V\Tm, Warren, Esq., of Dublin, aftcrwarcls found it in the same locality. Mr. Humphreys detectcd it on the north side of tho river Boync, near Drogheda. 28. HELIX ERICtTonuM, pi. XVII, f. 21, 23, and 34- First Ed., pi, •10, f. 21 , 23, nncl 34. Hcli.-1: cricitorum, Müller, Vcrm., II, p, 233, No. 236; La- marck, An. San. Vert., VI, pt. 2nd, p. 84; Montagu, Test. Brit., p, 436; Fleming, Edin. Eney., VII, p. 80; lb., Brit. An., p. 260; Drown, Ency. 13rit., 6th Ed., p. 459; lh., Werncrian Mem., II, P· 524; Donovan, Brit. Sh., pi. 151, f. 2; l\faton an<l Ilacketl, Linn. Tr. VIII, p, 194; Alder, l\fag. Zoo!. and llot., II, P· 109; Ilossmassler, I, p. 67, pi. l, f . 17; Forhes, l\fal. ].\fon., p. 8; Thompson, Ann. and Mag. Nat. I-Iist., VI, p. 30; Turton, Brit. Fau., p. 188; lb., :Man., p. 54, f. 37; Brard;_p. 45, pi. 2, f. S; Jlcli:1: ccspitum, Drnpcrnaud, p. l O!), pi. 6, f. 1 ü; Pfeilfer, I, p. 39, pi. 2, f. 24, 25 ; Helfa· crica, Da Costa, Dril. Conch., p. 53, pi. 54, f. 8; Hcli.v albclla, Pennant, Brit. Zool., IV, p. 132, pi. 85, f. 122; Zonitcs cricitormn, Lcach, Moll., p. 163. Shcll deprcsscd, ai¡d subpellucicl; bocly vcry largc; spirc vcry short, consisting of five much dcpressed volutions, but littlc elevated above the body, which is rcmarkably inflated; base furnished with a yery large ancl clcep umbilicus, which cxposes, int.ernally, nearly half of the breaclth of thc volutions of thc spirc; apcrture rather longer than wide, sublunated, or nearly circular; outer lip thin, reflected, nearly uniting ali ronnd, ex- ccpt where it is intcrrupted by the body on the columclla; wholc surface covercd wilh longitudinal, slightly concentric wrinklcs ; colour yellowish-whitc, or grayish-brown; the supe- rior portian of t he body gcncrally furnishc<l with a brown band on its upper part, which is continuous al the base of the volu- tions of the spirc, and defining their division; base of the body well rounded, and usually wi th one nearly central, conccntric, broad, dark brown band, and severa! narrower paler ones on each sidc, varying from one to fire in numbcr. Diameter three-quarters of an inch, and sometimes more ; height a littlc more than a quarter. T his spccies ;5 subject to considerable variations in its colouration; somctimcs qnilc white, which was considered by I-fortmann as a distinct specics, ami. dcscribcd uncler thc name of ll. oblitcmtc,; somctin1cs the ban<ls ¡¡re continuous, and al others interruptc<l in a catinatcd manner. It is also liable t o ,•ary in size; in some instanccs littlc more than half the d imen- sions of our figures. l\ír. Jcll'rcy,, in the Linn;uan Transactions, XIII, p. 339, describes a varicty fouml in lona, onc of thc "Western Isl:111cls of Scotland, which has a more produced spirc than the ordinary form. Hcli.1: elcgans, Ilrown, " 1 ernerian i\1en1., II, p. 528, pi. 2·1, f. 9; Cm·ocollct elcgm1s, Brown, 1st Ecl., pi. 40, f. 28; Jlelfa· di:1J1mcla, T urton, Conch. Dict., p. 61, f. 63. This rcmarkable lu.ms, pi. XVII, f. 28, was founcl ncar Golclen Bridge, Dublin, by Mr. Eclward Stephcns, ¡¡mi is in the cabinet of my old and respected friend 1\-1. .T. O'Kclly, Esq., of Ilocheslown I-Iousc, County of Dublin, where I ¡¡gain saw it i11 August, 18-11. The JI. ci·icitornm is a widely diffnsecl spccies throughoul thc South of Englnncl ali(! the l slc of l\Ian, ali(! appcars to abound ali 01·er Ireland mHI -its ¡¡djacent islamls. A farnuritc rcsort scems to be the marine sand banks around the coast, and