Madagasikara spinosa
Species of gastropod
From Wikipedia, the free encyclopedia
Madagasikara spinosa is a species of tropical freshwater snail with a gill and an operculum, an aquatic gastropod mollusc in the family Pachychilidae.[3]
| Madagasikara spinosa | |
|---|---|
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| Madagasikara spinosa | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | incertae sedis |
| Family: | Pachychilidae |
| Genus: | Madagasikara |
| Species: | M. spinosa |
| Binomial name | |
| Madagasikara spinosa | |
| Synonyms[3] | |
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Madagasikara spinosa is the type species of the genus Madagasikara.[3]
Distribution
This species is endemic to Madagascar.[3] It was recorded in East Madagascar and in surrounding islands such as Île Sainte-Marie.[3]
The type locality is "Dans le rivières de l'ile de Madagascar", in rivers of Madagascar.[3]
Description
_-_Pachychilidae_-_Mollusc_shell.jpeg)
The shell is elongate and large and it has 5.0-11.0 whorls.[3] The color of the shell is from brown to black.[3] The apex is truncated.[3] There are axial ribs especially on upper whorls.[3] The aperture is widely oval with palatal and basal sinus.[3]
The width of the shell is 9.9-28.3 mm.[3] The height of the shell is 25.2-69.5 mm.[3] The width of the aperture is 5.0-18.4 mm.[3] The height of the aperture is 8.0-23.1 mm.[3]
The operculum is oval and black.[3]
The color of the animal is dark grey to black with yellowish dots.[3] Tentacles are quite long.[3] Radula is taeniglossate.[3] Radula is about 16 mm long with about 127 rows of teeth.[3]
Ecology
It lives in fast running streams.[3]
Sexes are separate (gonochorism).[3] Females lays eggs (oviparous).[3]