The royal natural history . LANC MOLLUS. 1, 2. Varieties of Helix hortensis. 5. Limax maximus. 10. Helix pomatia. 13. Cyclostoma elegans. 3. Agriolimax agrestis. 6. 7. Helix nemoralts. 11, 12. Clausilia ventricosa. 14, 15. Varieties of A Hon emplricorut 4. Buliminus moutanus. 8, 9. Helix personata. GASTROPODS 345 a large terminal mucus-pore, and there are other anatomical differences. Thesingle British species is here figured. Unlike Vitrina, the snails known as Zonitesand Vitrea, together with some allied genera, are wholly retractile within theirshells. There are several British species of V
The royal natural history . LANC MOLLUS. 1, 2. Varieties of Helix hortensis. 5. Limax maximus. 10. Helix pomatia. 13. Cyclostoma elegans. 3. Agriolimax agrestis. 6. 7. Helix nemoralts. 11, 12. Clausilia ventricosa. 14, 15. Varieties of A Hon emplricorut 4. Buliminus moutanus. 8, 9. Helix personata. GASTROPODS 345 a large terminal mucus-pore, and there are other anatomical differences. Thesingle British species is here figured. Unlike Vitrina, the snails known as Zonitesand Vitrea, together with some allied genera, are wholly retractile within theirshells. There are several British species of Vitrea, and their identification fromthe shells alone is a matter of considerable difficulty. In their habits they closelyresemble Vitrina, being carnivorous rather than vegetarian. They greedily devourany kind of animal food, even in a putrid condition, and are also said to preyupon some of the larger snails. They are generally found hidden away understones, dead leaves, or moss, and some of them emit a strong smell, like garlic, whichi
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Keywords: ., bookcentury1800, booksubjectnaturalhistory, booksubjectzoology
