MOLLUSCA. 
Involute.] 
fuscus, Walker, Test. Min. Rar., p. 112, pi. 2, f. 42; Montagu, 
Test. Brit., p. 330; Wood, Sup., pi. 6, f. 15; Carychium coch- 
lea, Studer, Catal., p. 21 ; Carychium fuscum, Fleming, Brit. 
An., p. 270; Jeffreys, Linn. Tr., XVI, p. 364; Carychium 
Uneatum, Ferussac, Tab. Syst., p. 100 ; Rossmassler, V, p. 54, 
pi. 28, f. 408; Cyclostoma Uneatum, Ferussac, Diet. Class. Hist. 
Nat., II, p. 90 ; Auricula lineata, Drapernaud, Hist., p. 57, pi. 
3, f. 20, 21; Balimus lineatus, Turton, Man., p. 82, f. 66; Ib., 
Zool. Journ., H, p. 565. 
Shell cylindrical, of a brown colour, and extremely glossy; 
body somewhat shorter than the spire ; which consists of five 
nearly flat volutions, decreasing but little in diameter, except 
the two upper ones, which are a little less, somewhat paler, and 
terminating in a blunted apex; volutions divided by a well 
marked suture, and covered with remote, regular, longitudinal 
gtrise, which are invisible without the aid of a strong lens; aper- 
ture subovate; pillar lip slightly reflected on the columella, with 
a small subumbilicus behind; outer lip thin, and even. Length 
about the tenth of an inch ; diameter nearly a sixth. 
Found in damp situations amongst moss and jungermanniae. 
2. Acme minuta, pi. XIV, f. 26 — First Ed., pi. 41, f. 26. 
Shell cylindrical, smooth, shining, and of a greenish-brown 
colour ; spire consisting of four slightly raised volutions, sepa- 
rated by a well marked suture, and terminating in an obtuse 
apex ; aperture subovate ; pillar lip slightly reflected on the 
columella; outer lip thin, and even on the edges. Length 
about the tenth of an inch ; diameter not a sixth. 
I found this minute species at Douglas Castle, Lanarkshire, 
amongst jungermannise, in the low meadow land below the old 
tower. 
This species may be distinguished from the A. fusca by 
being longer in proportion to its breadth, in the volutions being 
more inflated, and in being entirely destitute of spiral strise. 
Section II, — Animals with four tentacula. 
Genus 45. — Succinea. — Drapernaud. 
Shell subovate, or ovately conical, mostly elongated ; spire 
short ; aperture longitudinal, oblique, large, entire, and usually 
about two-thirds the length of the shell ; margin of the outer 
lip thin, sharp, and not reflected, united to the columellar lip 
below ; columella smooth, sharp-edged, narrow, and attenuated ; 
inner lip spread over a small portion of the body volution. 
The shells of this genus are distinguished from the Lymncea, 
by being destitute of the oblique fold on the columella. 
1. Succinea amphibia, pi. XIV, f. 41, 42. — First Ed., pi. 
42, f. 41, 42. 
Succinea amphibia, Drapernaud, Hist. Moll., p. 58, pi. 3, f. 
22, 23; Lamarck, An. San. Vert., VI, p. 135; Pfeiffer, p. 67, 
pi. 3, f. 36 and 38; Sowerby, Genera, f. 3; Brard, p. 72, pi. 3, 
f . 1 ; Turton, Man., p. 91, f. 73; Alder, Mag. Zool. and Bot., 
II, p. 106; Succinea putHs, Fleming, Brit. An., p. 267 ; Jef- 
freys, Linn. Tr., XVI, p. 325 and 505; Thompson, Ann. and 
Mag. Nat. Hist., VI, p. 35 ; Succinea MulleH, Leach, Moll., 
p. 78; Helix putris, Linne, Syst. Nat., I, p. 1249; Donovan, 
Brit. Sh., pi. 168, f. 1 ; Helix succinea, Muller, Verm., II, p. 
97; Brown, Wernerian Mem., II, p. 530; Maton and Racket!, 
Linn. Tr., VIII, p. 218; Lymnea succinea, Fleming, Edin. 
Ency., VII, p. 77 ; Helix limosa, Dillwyn, Des. Cat., p. 965. 
35 
Shell oblong-ovate, smooth, extremely thin and pellucid, and 
glabrous, of a greenish or yellowish-amber colour ; body very 
large ; spire very small, nearly perpendicular to the base, or 
slightly oblique, consisting of three rapidly diminishing volu- 
tions, terminating in an acute apex; aperture very large, 
occupying about three-fourths the shell, narrowed above, and 
rounded beneath ; outer lip plain, sharp, and very thin. The 
columella is visible through its entire length. 
2. Succinea gracilis, pi. XIV, f. 34, 35 First Ed., pi. 
42, f. 34, 35. 
Succinea gracilis, Alder, Mag. Zool. and Bot., II, p. 106 ; 
Succinea ohlonga, Leach, Moll., MSS.; Turton, Man., p. 92, f. 
74; Alder, Cat. 6, No. 20; Succinea Pfeifferi, Rossmassler, 
Icon., pi. 92, f. 46 ; Thompson, Ann. and Mag. Nat. Hist., VI, 
p. 35 ; Succinea amphibia, var. b, Pfeiffer, p. 67, pi* 3, f. 37, 
var. /3; Nilson, p. 41, 7 and S; Drapernaud, Moll., f. 23; Suc- 
cinea putris, var. a, Jeffreys, Linn. Tr., XVI, p. 325 and 505; 
Helix putris, Montagu, Test. Brit., p. 376, pi. 16, f. 4. 
Shell oblong-ovate, slender, pellucid, shining, and of a bright 
amber colour ; body very large ; spire very small, consisting 
of three rapidly diminishing volutions, with an acute apex; 
aperture very large, oblong-ovate, contracted above, wide and 
rounded below, and placed very oblique ; outer lip thin, and 
sharp at the edge. 
Variety 1, pi. XVIII, f. 22, 23. This elegant variety of the 
species was found at Beaumaris, Anglesea, North Wales, by 
my friend Thomas Glover, Esq., of Smedley Hill, Manchester. 
It is much thicker in proportion to its size, and of a deep flesh 
colour ; the spire is also more inflated than the ordinary spe- 
cimens. 
This shell seldom attains the same size as the S. amphibia, 
and may readily be distinguished by its very oblique aperture, 
and in being more elongated. It inhabits the banks of ponds, 
rivers, and streams. 
3. Succinea oblonga, pi. XVIH, f. 21. 
Succinea oblonga, Drapernaud, Hist, des Moll., p. 59, pi. 3, 
f. 24, 25; Pfeiffer, p. 68, pi. 3, f. 39; Jeffreys, Linn. Tr., XVI, 
p. 325 and 505; Alder, Mag. Zool. and Bot., II, p. 106; John- 
ston, Proceedings Berwickshire Nat. Hist. Club, p. 154. 
Shell oval, shining, pellucid, and of a pale amber colour ; 
body large ; spire small, consisting of three well defined volu- 
tions, terminating in an acute apex ; aperture very large, con- 
tracted above, and expanded and round below ; outer lip thin, 
and acute at the edge. Length a quarter of an inch; diameter 
not an eighth of an inch. 
Found oji the margin of ditches at Bathgate, Lanarkshire, by 
Mr. Kenyon of Preston ; at Britonferry, near Swansea, by Mr. 
Jeffreys; and near Berwick-upon-Tweed, by Dr. Johnston. 
Genus 46.— Achatina. — Lamarck. 
Shell ovate, or oblong; body large; spire short in most 
species, but it is sometimes lengthened and elevated ; aper- 
ture entire, longitudinal ; outer lip thin, never reflected ; inner 
lip but slightly spread over the base of the body ; columella 
smooth, and destitute of folds or teeth, and truncated at the 
base. 
Distinguished from Bulimus by the abrupt termination of the 
pillar lip. 
