MONOGRAPH OF BRITISH LAND AND FRESIWATER MOLLUSCA. Pit 
Helix pomatia Linné. 
1612 Cochlea terrestris, gypso observata Aldroy., Exang., p. 389. 
1674. — cinerea, maxima, edulis, cujus os operculo gypseo per hyemem tegitur 
agri: Haxfordiensis Lister, Phil. 'Trans., no, 105, ix., p. 99. 
iid alba major cum suo operculo Merret, Pinax, p. 207. 
678 - cinerea, maxima, cujus os operculo crasso velut gypseo per hyemem 
clauditur, Pomatie Gesneri De Aquatilibus, pp. 244 and 255. — Lister, 
Hist. Anim. Amel. tit. 1., p. 111, tab. 2, £. 1. 
1685 - cinereo rufescens, fausciuta, leviter, umbilicata, Pomatia Gesneri, Lister, 
Hist. Conch., tab. 48, f. 46. 
1694 — pomatia edulis Gesneri Lister, Exerc. Anat., i, p. 162, tab. 1. 
1695 — alba major Petiver, Mus., p. 4, no. 12. 
738) — opercularis vinearum Swamm., Bibl. Nat., t. 4. 
1742. — _ terrestris vulgaris, maxima, albicans, ponatia, Gualt.Coneh.,i., tab. 1, fia. 
1746 - testa ovata quinque spirarum, pomatia dicta Linnweus, Faun. Svee., i., 
p. 309, 10. 1293. 
1758 Helix pomatia Linné, Syst. Nat., ed. x., p. 771. 
1774 — pomaria Miiller, Verm. Hist., ii., p. 45, no. 244. 
1820 — lucorwm Studer, Kurz. Verzeichn., p. 88. 
1859 = —_ schlaflii Mousson, Coq. ?Orient, p. 40. 
1778 Cochlea pomatia DaCosta, Brit. Conch., p. 67, tab. iv., f. 14. 
1797 — edulis Humphreys, Mus. Calonn. 
1826 Helicogena pomatia Risso, Hist. Europ. Merid., vol. iv., p. 6. 
1837 Pomatia pomatia Beek, Ind. Moll., p. 43. 
1852. — antiquorwiu Leach, Syn., p. 64. 
1887 Canatoria pomatia Held, Isis, p. 911. 
ISTORY.—The name pomatia 
(wopa, an operculum) is, accord- 
ing to Dr. Leach, derived from TWOPATUS, 
the term applied to the species by 
Dioscorides (lib. 11., cap. 2), and not 
from pomum, an apple, as some writers 
have assumed when they speak of the 
“Apple Snail.” 
From its large size, striking appear- 
ance, and suitability for food, this 
species has always attracted consider- 
able notice, and has not become over- 
burthened with synonyms, although 
certain South European forms, origin- 
ating from the same stock, now gener- 
ally recognized as distinct species, were 
probably included with pomatia by the 
earlier writers. 
Helix’ pomatia was first figured in 
Bae the works of Conrad Gesner, the famous 
Conrad -Gesner Swiss naturalist, who flourished in the 
; sixteenth century, with whom the species 
is here associated, and who alluded to this shell by the generalized term 
“De Pomatiis Cochleis.” 
Diagnosis.—//. pomatia differs so greatly in size and aspect from any 
other British species that there is little probability of confusion arising 
from erroneous identification, although shells of A. aspersa found in con- 
nection with Roman camps have sometimes been assumed to be the 
“Roman snail” and placed on record as that species by archzeologists. 
