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Cryptophialus minutus
Cryptophialus minutus is a species of barnacle. One cluster in particular, dubbed Mr. Arthrobalanus, is notable for being the impetus for Charles Darwin's "Cirripedia project" and obsession with barnacles.
From the article Cryptophialus minutus on Wikipedia (CC BY-SA), quoted section by section
Description
Cryptophialus minutus is a small (2 mm) cirripede that has no shell. It mechanically burrows into the shell of host organisms such as Concholepas peruviana. Unlike many barnacle species, C. minutus is not hermaphroditic. Males are much reduced, one-tenth the size of females, and missing features such as a head and stomach. Males serve little purpose besides reproduction.
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Cryptophialus minutus in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 1649067.