Macroschisma productum

Macroschisma productum
Top view of a shell of Macroschisma productum
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Vetigastropoda
Order:	Lepetellida
Family:	Fissurellidae
Subfamily:	Fissurellinae
Genus:	Macroschisma
Species:	M. productum
Binomial name
Macroschisma productum Adams, 1850
Synonyms [1]
Macrochisma producta Adams, 1851 (basionym) Macroschisma producta [sic] (incorrect gender ending) "Dolichoschisma producta" Adams, 1851

Macroschisma productum, common name the elongated keyhole limpet, is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets. ^[1]

Description

The shell is elongated and narrowly oblong, elevated dorsally and convex, with flattened sides and a strongly sinuous margin. The apical opening (foramen) is very long, triangular, and expanded posteriorly. ^[2]

Distribution

This marine species occurs in southern Australia and the western Indian Ocean. ^[1]

In Madagascar, it has been recorded from Nosy Nasatrana, where specimens were collected on the beach. ^[3]

References

1. Rosenberg, G. (2014). Macroschisma productum A. Adams, 1851. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=732499 on 2015-02-15
2. Adams, Arthur (1851). "A monograph of Macrochisma, a genus of gasteropodous mollusca belonging to the family Fissurellidae". Proceedings of the Zoological Society of London. 18: 202–203.
3. Dautzenberg, Philippe (1929). Mollusques testacés marins de Madagascar [Marine testaceous molluscs from Madagascar]. Faune des colonies françaises (in French). Vol. III. Paris: Société d'Éditions géographiques, maritimes et coloniales. p. 545.

External links

• Biodiversity Heritage Library (6 publications)
• World Register of Marine Species
• "Macroschisma producta". Gastropods.com. Retrieved 16 January 2019.