# Megastomia simplex

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{{Short description|Species of gastropod}}
{{Speciesbox
| name = Simple pyramid shell
| image = Syrnola simplex 001.png
| image_caption = Drawing of a [shell](/source/gastropod_shell) of ''Syrnola simplex''
| taxon = Megastomia simplex
| authority = ([Angas](/source/George_French_Angas), 1871)
| synonyms_ref = 
| synonyms =
* ''Agatha simplex'' <small>(Angas, 1871)</small> ·
* ''Odostomia simplex'' <small>Angas, 1871</small>
* ''Syrnola (Agatha) simplex'' <small>(Angas, 1871)</small>
}}

'''''Megastomia simplex''''', common name the '''simple pyramid shell''',  is a [species](/source/species) of [sea snail](/source/sea_snail), a [marine](/source/marine_(ocean)) [gastropod](/source/gastropod) [mollusk](/source/mollusk) in the [family](/source/Family_(taxonomy)) [Pyramidellidae](/source/Pyramidellidae), the pyrams and their allies.<ref>of Tasmania : ''Syrnol [http://www.molluscsoftasmania.net/Species%20pages/Syrnola%20simplex.html A guide to the seashell and other marine mollusks a simplex]''</ref><ref name="WoRMS">MolluscaBase eds. (2022). MolluscaBase. Megastomia simplex (Angas, 1871). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=722616 on 2022-07-17</ref>

==Description==
The white, rather solid shell has a smooth appearance. The length of the shell measures {{convert|4|mm|in}}. The [teleoconch](/source/teleoconch) contains 7½ rather flat [whorl](/source/Whorl_(mollusc))s . They are a little angulated at the [suture](/source/Suture_(anatomy)). The [aperture](/source/Aperture_(mollusc)) is lirate within. Its plait is sharp and transverse.<ref name="Tryon">[https://archive.org/stream/manualconch08tryorich#page/n5/mode/2up G.W. Tryon, Manual of Conchology vol. VIII p. 363; 1889]</ref>

==Distribution==
The type specimen of this marine species was found off [Port Jackson](/source/Port_Jackson), New South Wales, Australia.

==References==
{{Reflist}}

{{Taxonbar|from2=Q7663475|from1=Q61684766}}

Category:Pyramidellidae
Category:Gastropods described in 1871

{{Pyramidellidae-stub}}

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Adapted from the Wikipedia article [Megastomia simplex](https://en.wikipedia.org/wiki/Megastomia_simplex) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Megastomia_simplex?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.