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Photo © Scott Loarie, some rights reserved
pillar point CA (Google, OSM) Details Hide details
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Comments & Identifications

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angular unicorn - Photo (c) Scott Loarie, some rights reserved (CC BY)
loarie's ID: angular unicorn (Acanthina spirata [inactive]) (inactive taxon)
Posted by loarie over 4 years ago (Flag)
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angular unicorn - Photo (c) Scott Loarie, some rights reserved (CC BY)
invertboy's ID: angular unicorn (Acanthina spirata [inactive]) (inactive taxon)
Posted by invertboy over 3 years ago (Flag)
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Angular unicorn - Photo (c) Femorale, some rights reserved (CC BY-NC)
loarie's ID: Angular unicorn (Acanthinucella spirata) Added as part of a taxon swap
Posted by loarie almost 2 years ago (Flag)
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Angular unicorn - Photo (c) Femorale, some rights reserved (CC BY-NC)
invertboy's ID: Angular unicorn (Acanthinucella spirata) Added as part of a taxon swap
Posted by invertboy almost 2 years ago (Flag)
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Spotted Unicorn - Photo (c) Jerry Kirkhart, some rights reserved (CC BY)
invertzoo's ID: Spotted Unicorn (Acanthinucella punctulata)
Posted by invertzoo 11 months ago (Flag)
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It is very easy to confuse these two species. But here is what typical Acanthina spirata really looks like, much higher-spied, white aperture, very angular outline, not nearly as rounded as A. punctulata:

http://www.jaxshells.org/2005yy.htm

Posted by invertzoo 11 months ago (Flag)
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Spotted Unicorn - Photo (c) Jerry Kirkhart, some rights reserved (CC BY)
loarie's ID: Spotted Unicorn (Acanthinucella punctulata)
Posted by loarie 11 months ago (Flag)
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thank you

Posted by loarie 11 months ago (Flag)
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You are welcome. I have made the same error myself and a lot of people confuse the two species, but I think after a lot of studying that I now understand the differences between them. Where I used to live near San Diego, A. spirata was very common and A. punctulata was very rarely seen. In central and northern California the opposite seems to be true.

Posted by invertzoo 11 months ago (Flag)
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Spotted Unicorn - Photo (c) Jerry Kirkhart, some rights reserved (CC BY)
invertboy's ID: Spotted Unicorn (Acanthinucella punctulata)
Posted by invertboy 9 months ago (Flag)
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Spotted Unicorn - Photo (c) Jerry Kirkhart, some rights reserved (CC BY)
loarie's ID: Spotted Unicorn (Acanthinucella punctulata)
Spotted Unicorn - Photo (c) Jerry Kirkhart, some rights reserved (CC BY)
Community ID: Spotted Unicorn (Acanthinucella punctulata)
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invertzoo invertboy 2 people agree
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