MOLLUSCA. 
50 
faint indication of spiral bands. Colonel Montagu observes, 
that “in shape it is a medium between Helix virgata and 
radiata ; it is not so produced as the former, nor so flat as the 
latter ; in the bands, or fasciae, at the base it somewhat resem- 
bles the first, and in being strongly striated is like the last.” 
This is a local species, and has been found in Wiltshire, 
South Devonshire, Cornwall, and Cumberland. It is plentiful 
in the neighbourhood of the Old Ouarry, back of and also at 
the base of the clifls in front of Salisbury Crags, at Edinburgh. 
I found it plentifully on mud walls at Naas, County of Kildare. 
Thompson says, it seems to prevail only in the “ southern half 
of the island, and is plentiful where it does occur.” He par- 
ticularises Glanmire, near Cork, by W. H. Harvey, Esq.; Kilkee 
Castle, near Ballitore, County of Kildare, La Bergerie, Queen’s 
County, by Mr. Patterson, of Belfast ; and at Kingstown, near 
Dublin, by T. W. Warren, Esq. 
27 . Helix pisana, pi. XVH, f. 27, 29, 33, 35, 38, and 
58 First Ed., pi. 40, f. 27, 29, 33, 35, 38, and 58. 
Helix pisana, Muller, Verm., II, p. 60, No. 255; Lamarck, 
An. San. Vert., pt. 2nd, p. 82 ; Rossmassler, V, VI, p. 34, pi. 
26 , f. 259, a, h, c, d; Brown, Ency. Brit., 6th Ed., VI, p. 459 ; 
Fleming, Brit. An., p. 259 ; Alder, Mag. Zool. and Bot., H, p. 
109; Thompson, Ann. and Mag. Nat. Hist., VI, p. 28; Helix 
cingenda, Montagu, Test. Brit., p. 418, pi. 24, f. 4; Maton and 
Rackett, Linn. Tr., VIH, p. 195, pi. 5, f. 6; Turton, Brit. Fau., 
p. 188; Ib., Man., p. 39j f. 30 ; Jefireys, Linn. Tr., XIII, p. 
333; Fleming, Edin. Ency., VII, p. 79; Phillippi, Enum. Moll. 
Sic., p. 131, No. 22; Helix albana, Muller, Verm., II, p. 25, 
No. 226 ; Helix zonatna. Pennant, Brit. Zool., IV, p. 137, pi. 
85, f. 133; Helix rhodostoma, Drapernaud, p. 86, pi. 5, f. 13, 
14, 15 ; Teha cingenda, Leach, Moll., p. 92. 
Shell subpellucid, subglobose ; body large ; spire small, con- 
sisting of four volutions, the three superior ones but little 
elevated above the others, and terminating in an obtuse, de- 
pressed apex ; body volution somewhat angulated, or flattened 
above ; base well rounded, with a narrow and deep umbilicus ; 
aperture semilunar, somewhat longer than wide ; outer lip thin, 
as well as the pillar lip, which is abruptly reflected half over the 
umbilicus ; whole surface of a cream-white, or yellowish, with 
several spiral bands of chestnut, or purplish-brown ; sometimes 
these are interrupted, forming short, longitudinal, streaks or 
dots ; base generally provided with one broad concentric band, 
at a little distance from the umbilicus, but with two in some 
specimens; near the aperture the colour is more or less roseate; 
apex defined by a black spiral line. Diameter generally three- 
quarters of an inch ; length half an inch. But is subject to a 
considerable difference in size. 
Fig. 32 and 36, the young shell. 
A variety of this species is met with quite plain, and in some 
specimens with only a few faint zones on the body. 
This species bears a considerable similitude to H. virgata, 
but it is larger and broader, with a more depressed apex. 
This is one of the rarest, and most beautiful of our land 
shells; Montagu found it on the south of Tenby, close to the 
sea shore, and also on the west of that place. The Rev. Thos. 
Rackett found it at St. Ives, Cornwall, and was first discovered 
in Ireland, near Balbriggan, on the County of Meath side of 
the stream that divides that county from Dublin, by my friend 
M. J. O’Kelly, Esq., of Rochestown House, County of Dublin ; 
[Trachelipoda 
Thos. Wm. Warren, Esq., of Dublin, afterwards found it in the 
same locality. Mr. Humphreys detected it on the north side 
of the river Boyne, near Drogheda. 
28. Helix ericitorum, pi. XVH, f. 21, 23, and 34. — 
First Ed., pi. 40, f. 21, 23, and 34. 
Helix ericitorum, Muller, Verm., H, p. 233, No. 236; La- 
marck, An. San. Vert., VI, pt. 2nd, p. 84; Montagu, Test. Brit., 
p. 436 ; Fleming, Edin. Ency., VH, p. 80 ; Ib., Brit. An., p. 
260 ; Brown, Ency. Brit., 6th Ed., p. 459 ; Ib., Wernerian 
Mem., H, p. 524; Donovan, Brit. Sh., pi. 151, f. 2; Maton and 
Rackett, Linn. Tr. VIH, p. 194; Alder, Mag. Zool. and Bot., 
H, p. 109; Rossmassler, I, p. 67, pi. 1, f. 17; Forbes, Mai. 
Mon., p. 8 ; Thompson, Ann. and Mag. Nat. Hist., VI, p. 30 ; 
Turton, Brit. Fau., p. 188; Ib., Man., p. 54, f. 37 ; Brard, p. 
45, pi. 2, f. 8; Helix cespitum, Drapernaud, p. 109> pi- 6, f. 16; 
Pfeiffer, I, p. 39, pi. 2, f. 24, 25 ; Helix erica, Da Costa, Brit. 
Conch., p. 53, pi. 54, f. 8 ; Helix albella. Pennant, Brit. Zool., 
IV, p. 132, pi. 85, f. 122; Zonites ericitorum, Leach, Moll., p. 
163. 
Shell depressed, and subpellucid; body very large; spire very 
short, consisting of five much depressed volutions, but little 
elevated above the body, which is remarkably inflated; base 
furnished with a very large and deep umbilicus, which exposes, 
internally, nearly half of the breadth of the volutions of the 
spire ; aperture rather longer than wide, sublunated, or nearly 
circular ; outer lip thin, reflected, nearly uniting all round, ex- 
cept where it is interrupted by the body on the columella; 
whole surface covered with longitudinal, slightly concentric 
wrinkles ; colour yellowish-white, or grayish-brown ; the supe- 
rior portion of the body generally furnished with a brown band 
on its upper part, which is continuous at the base of the volu- 
tions of the spire, and defining their division ; base of the body 
well rounded, and usually with one nearly central, concentric, 
broad, dark brown band, and several narrower paler ones on 
each side, varying from one to five in number. Diameter 
three-quarters of an inch, and sometimes more ; height a little 
more than a quarter. 
This species is subject to considerable variations in its 
colouration ; sometimes quite white, which was considered by 
Hartmann as a distinct species, and described under the name 
of H. obliterata ; sometimes the bands are continuous, and at 
others interrupted in a catinated manner. It is also liable to 
vary in size; in some instances little more than half the dimen- 
sions of our figures. Mr. Jeffreys, in the Linnsean Transactions, 
XIII, p. 339 , describes a variety found in lofla, one of the 
Western Islands of Scotland, which has a more produced spire 
than the ordinary form. 
Helix elegans. Brown, Wernerian Mem., II, p. 528, pi. 24, 
f. 9 ; Carocolla elegans. Brown, 1st Ed., pi. 40, f. 28; Helix 
disjuncta, Turton, Conch. Diet., p. 61, f. 63. 
This remarkable lusus, pi. XVII, f. 28, was found near 
Golden Bridge, Dublin, by Mr. Edward Stephens, and is in the 
cabinet of my old and respected friend M. J. O’Kelly, Esq., of 
Rochestown House, County of Dublin, where I again saw it in 
August, 1841. 
The H. eticitorum is a widely diSused species throughout 
the South of England and the Isle of Man, and appears to 
abound all over Ireland and its adjacent islands. A favourite 
resort seems to be the marine sand banks around the coast, and 
