Succinea | |
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Succinea putris in Oxfordshire | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
Subclass: | Heterobranchia |
Order: | Stylommatophora |
Superfamily: | Succineoidea |
Family: | Succineidae |
Subfamily: | Succineinae |
Genus: | Succinea Draparnaud, 1801 [1] |
Type species | |
Helix putris Linnaeus, 1758 | |
Species | |
See text | |
Synonyms [2] | |
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Succinea, common name the amber snails, is a large genus of small, air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Succineidae. [2]
The common name refers to the fact that live snails in this genus are translucent and similar to amber in appearance.
The length of the shell ranges between 9.4–17 millimetres (0.37–0.67 in); the width ranges between 6.8–11.5 millimetres (0.27–0.45 in).
The dextrous, pointed ovoid shell consists of 3⅓–3½ whorls. It is thin-walled, glossy and translucent. The protoconch is very compact. The spire is short and consists mainly of a large, wide body whorl and an oval aperture with a sharp angle at the top. The deep sutures are prominent.The interior surface of the aperture is cream-colored or white.
The shell is usually light brown, but may be whitish with gray or light yellow streaks.
The large body cannot be completely withdrawn within the shell. The lower pair of tentacles is vestigial.
The many species in this genus are difficult to distinguish. Sometimes they need dissecting to confirm identification through the shape of the jaw and character of the reproductive system. [3]
This large genus has a worldwide distribution. Species in this genus usually live in damp habitats such as marshes. Some species are amphibious.[ citation needed ]
Species within the genus Succinea include:
Additional species, taken from IUCN Red List:
Parasites of Succinea spp. include:
Succinea consume small plants, such as mosses and leaf litter. Succinea campestris in particular is known to live in leaf litter, and is also known to be attracted to light, an unusual characteristic in snails. [13]
In mating, the snails are hermaphrodites and mate reciprocally (both snails transfer sperm into one another). However, many have preferences in what role they take—some actively seek out mates, mounting others' shells, while others do not. [14]
Succineidae are a family of small to medium-sized, air-breathing land snails, terrestrial pulmonate gastropod molluscs in the superfamily Succineoidea.
Aegista is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Camaenidae.
Drymaeus is a large genus of medium-sized air-breathing, tropical land snails, terrestrial pulmonate gastropod molluscs in the subfamily Peltellinae of the family Bulimulidae.
Helicina is a genus of tropical and subtropical land snails with an operculum, terrestrial gastropod mollusks.
Omphalotropis is a genus of minute salt marsh snails with an operculum, terrestrial gastropod mollusks in the subfamily Omphalotropidinae of the family Assimineidae.
Streptostyla is a genus of predatory, air-breathing land snails, terrestrial pulmonate gastropod molluscs in the subfamily Streptostylinae of the family Spiraxidae.
Truncatella is a genus of very small land snails with an operculum, terrestrial gastropod mollusks in the family Truncatellidae. These small and minute snails live on land, very close to seawater. They walk with a strange looping action, and the adults have truncated shells. Many of the species are small enough to be considered micromollusks.
Punctum is a genus of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the subfamily Punctinae of the family Punctidae, the dot snails.
Cyclophorus is a genus of operculate land snails, terrestrial gastropod mollusks in the family Cyclophoridae.
Melampus is a genus of small air-breathing salt marsh snails, pulmonate gastropod mollusks in the family Ellobiidae.
Leptopoma is a genus of land snails with a gill and an operculum, terrestrial gastropod mollusks in the family Cyclophoridae.
Streptaxis is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Streptaxidae.
Naesiotus is a genus of tropical air-breathing land snails, a pulmonate gastropod mollusks in the family Bulimulidae.
Pterocyclos is a genus of tropical land snails in the subfamily Cyclophorinae of the family Cyclophoridae.
Sturanya is a genus of land snails with an operculum. It is a genus of terrestrial gastropod mollusks in the subfamily Helicininae of the family Helicinidae.