Alvania nicolauensis

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| image = Alvania nicolauensis 001.jpg

| image_caption = Shell of Alvania nicolauensis (specimen at Natural History Museum, Rotterdam)

| taxon = Alvania nicolauensis

| authority = Moolenbeek & Rolán, 1988

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Alvania nicolauensis is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.{{WRMS species|224660|Alvania nicolauensis Moolenbeek & Rolán, 1988|| 3 December 2018}}

The species is endemic to the Cape Verde Archipelago. The species name refers to the island of São Nicolau, but it has been found near the coasts of other Cape Verde islands as well.{{cite journal|url=http://www.repository.naturalis.nl/document/549181|author=Moolenbeek R.G. & Rolán E. |year=1988|title= New species of Rissoidae from the Cape Verde Islands (Mollusca: Gastropoda) part 1|journal= Bulletin Zoölogisch Museum|volume= 11|issue=14|pages= 121–126}}

Description

Alvania nicolauensis is a grazer who feeds on detritus on the ocean floor.{{cite web |last1=Moolenbeek & Rolán |title=Alvania nicolauensis Moolenbeek & Rolán, 1988 |url=http://www.marinespecies.org/aphia.php?p=taxdetails&id=224660 |website=World Register of Marine Species |access-date=30 June 2021}} Specimens are usually brown or white in color. The shell has four large whorls taking up most of its size. It has a small parietal wall. There is a crossed pattern of indentations across the shell, giving it a textured look.{{cite web |title=Alvania nicolauensis Moolenbeek & Rolán,1988 |url=https://www.nmr-pics.nl/Rissoidae/album/slides/Alvania%20multinodula%20(2).html |website=Natural History Museum Pictures |access-date=30 June 2021}} The shell length can be up to 2.7mm.{{cite web |title=Alvania nicolauensis |url=https://www.gastropods.com/8/Shell_33298.shtml |website=Gastropods |access-date=30 June 2021}}

Alvania nicolauensis

Description

References

Further reading