Mainwaringia leithii

{{Short description|Species of gastropod}}

{{Use dmy dates|date=March 2021}}

{{Speciesbox

| image =

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| taxon = Mainwaringia leithii

| authority = (E. A. Smith, 1876)

| synonyms_ref =

| synonyms = Alaba leithii E.A. Smith, 1876
Melania paludomoidea Nevill, 1885

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Mainwaringia leithii is a species of sea snail, a marine gastropod mollusk in the family Littorinidae, the winkles or periwinkles.{{WRMS species|446280|Mainwaringia leithii (E.A. Smith, 1876)|||Reid, David G. (2010). Mainwaringia leithii (E.A. Smith, 1876). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=446280 on 6 June 2010}}