Madagasikara spinosa | |
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drawing of apertural view of Madagasikara spinosa | |
Conservation status | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
(unranked): | clade Caenogastropoda clade Sorbeoconcha |
Superfamily: | Cerithioidea |
Family: | Pachychilidae |
Genus: | Madagasikara |
Species: | M. spinosa |
Binomial name | |
Madagasikara spinosa (Lamarck, 1822)[2] |
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Synonyms[4] | |
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Madagasikara spinosa is a species of tropical freshwater snail with a gill and an operculum, an aquatic gastropod mollusc in the family Pachychilidae.[4]
Madagasikara spinosa is the type species of the genus Madagasikara.[4]
Contents |
This species is endemic to Madagascar.[4] It was recorded in East Madagascar and in surrounding islands such as Île Sainte-Marie.[4]
The type locality is "Dans le rivières de l’ile de Madagascar", in rivers of Madagascar.[4]
The shell is elongate and large and it has 5.0-11.0 whorls.[4] The color of the shell is from brown to black.[4] The apex is truncated.[4] There are axial ribs especially on upper whorls.[4] The aperture is widely oval with palatal and basal sinus.[4]
The width of the shell is 9.9-28.3 mm.[4] The height of the shell is 25.2-69.5 mm.[4] The width of the aperture is 5.0-18.4 mm.[4] The height of the aperture is 8.0-23.1 mm.[4]
The operculum is oval and black.[4]
The color of the animal is dark grey to black with yellowish dots.[4] Tentacles are quite long.[4] Radula is taeniglossate.[4] Radula is about 16 mm long with about 127 rows of teeth.[4]
It lives in fast running streams.[4]
Sexes are separate (gonochorism).[4] Females lays eggs (oviparous).[4]