{{Short description|Species of mollusc}} {{Speciesbox | image = Eupera troglobia (10.3897-subtbiol.42.78074) Figures 7–13.jpg | genus = Eupera | species = troglobia | authority = Simone & Ferreira, 2022 }}
'''''Eupera troglobia''''' is a species of [[mollusc]] that lives in caves. The discovery of ''E. troglobia'' makes it the first troglobitic bivalve from the Americas ([[North America]] and [[South America]]). The [[holotype]] collected was named holotype '''MZSP 155717''' and the [[paratype]] '''MZSP 155716'''. All were discovered in eastern subterranean [[Brazil]] at Casa Pedra cave [[google:10°49'28.4''S,+49°37'16.5''W&rlz=1CAZJQH_enUS989US989&oq=10°49'28.4''S,+49°37'16.5''W&aqs=chrome..69i57j0i546l4.249j0j7&sourceid=chrome&ie=UTF-8|10°49<nowiki>'28.4''S, 49°37'16.5''</nowiki>W]].<ref name=":0">{{Cite web |title=New Species of Cave-Dwelling Mollusk Discovered {{!}} Sci-News.com |url=http://www.sci-news.com/biology/eupera-troglobia-10848.html |access-date=2022-05-28 |website=Breaking Science News {{!}} Sci-News.com |language=en-US}}</ref> Records of the species date back to 2006 in the technical report of Brazil's National Center of Cave Exploration and Conservation.<ref name=":0" />
== Description == ''Eupera trolobia'' adults are ~{{convert|4.5|mm}} in length and lack pigmentation in the soft parts and shell. The wall of the [[Mollusc shell|shell]] is thin, making it fragile. It is translucent with a bit of light yellow or light greenish yellow. The anterior edge is rounded and smaller than the posterior edge. In medium specimens, the ventral edge is rounded and is slight ascentent to larger specimens. The sculpture of uniform concentric growth lines around ~15 per millimeter. The growth lines are usually continuous from the anterior up to the posterior hinge region.<ref>{{Cite journal |last=Simone |first=Luiz Ricardo L. |last2=Ferreira |first2=Rodrigo Lopes |date=2022-04-13 |title=Eupera troglobia sp. nov.: the first troglobitic bivalve from the Americas (Mollusca, Bivalvia, Sphaeriidae) |url=https://subtbiol.pensoft.net/article/78074/ |journal=Subterranean Biology |language=en |volume=42 |pages=165–184 |doi=10.3897/subtbiol.42.78074 |issn=1314-2615|doi-access=free }}</ref>
== References == {{Reflist}}
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[[Category:Sphaeriidae]] [[Category:Bivalves of North America]] [[Category:Molluscs of South America]] [[Category:Bivalves described in 2022]] [[Category:Cave molluscs]]
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