{{Short description|Species of gastropod}} {{Speciesbox | image = | image_caption = | display_parents = 5 | taxon = Nebularia petrosa | extinct = | authority = (G. B. Sowerby II, 1874) | synonyms_ref = <ref name="WoRMS" /> | synonyms = * ''Mitra petrosa'' <small>G. B. Sowerby II, 1874</small> * ''Mutyca petrosa'' <small>(G. B. Sowerby II, 1874)</small> }}
'''''Nebularia petrosa''''' is a species of sea snail, a marine gastropod mollusk, in the family Mitridae, the miters or miter snails.<ref name="WoRMS">MolluscaBase (2018). ''Nebularia petrosa'' (G. B. Sowerby II, 1874). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1063503 on 2019-01-04</ref><ref>Fedosov A., Puillandre N., Herrmann M., Kantor Yu., Oliverio M., Dgebuadze P., Modica M.V. & Bouchet P. (2018). The collapse of Mitra: molecular systematics and morphology of the Mitridae (Gastropoda: Neogastropoda). Zoological Journal of the Linnean Society. 183(2): 253-337.</ref>
==Description== The thick shell is white. The spire is striated and fusiform. The spire is pyramidal. The whorls are sloped. The body whorl is tumid in middle. The aperture is as long as the spire and is channelled at the suture. The outer lip is smooth, thick, contracted anteriorly, rather angular, short and recurved over the siphonal canal.<ref>[https://www.biodiversitylibrary.org/page/15936976 Sowerby, G. B. II. (1874). Monograph of the genus Mitra. In G. B. Sowerby II (ed.), Thesaurus conchyliorum, or monographs of genera of shells. Vol. 4 (31-32): 1–46, pls 352–379. London, privately published]</ref> Shell size 40 mm.
==Distribution== Philippines.
==References== {{Reflist}}
{{Taxonbar|from=Q60395678}}
petrosa Category:Gastropods described in 1874 Category:Taxa named by George Brettingham Sowerby II
{{Mitridae-stub}}