Look Alikes
provided by Invertebrates of the Salish Sea
How to Distinguish from Similar Species: Puncturella. multistriata has about 30 primary ribs, each separated by 1-3 secondary ribs. The primary ribs do not project more than 1 mm beyond the shell margin. Puncturella galeata has no anterior seam, about 49-63 ribs, and only grows to 2 cm. Other keyhole limpets such as Diodora aspera and Fissurellidea bimaculata have a round opening at the apex instead of a slit in front.
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Comprehensive Description
provided by Invertebrates of the Salish Sea
Biology/Natural History: Cranopsis was formerly considered to be a subset of Puncturella.
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Habitat
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On and under rocks
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Distribution
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Geographical Range: Alaska to Cabo San Qintin, Baja California
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Habitat
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Depth Range: Low intertidal to 200 m; more common subtidally
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Comprehensive Description
provided by Invertebrates of the Salish Sea
As with other members of this family, the shell is cap-shaped and has a dorsal opening near the apex or a slight indentation at the anterior margin. Craniopsis cucullata has a narrow slit just anterior to the apex of the shell and a seam running from this slit down to the anterior margin of the shell. The large, sharp primary and small secondary ribs are of very different size and the margin is dentate where the large primary ribs reach it. There are 13-23 primary ribs, each separated by about 3-4 faint secondary ribs. The primary ribs project as much as 2-3 mm from the margin. The apex may curve anteriorly. White inside and out. Length to 4 cm.
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Puncturella cucullata
provided by wikipedia EN
Puncturella cucullata, common name the hooded keyhole limpet, is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.[1]
Description
The size of the shell varies between 13 mm and 28 mm.
Distribution
This marine species occurs from Alaska to Baja California, Mexico
References
- Turgeon, D.D., et al. 1998. Common and scientific names of aquatic invertebrates of the United States and Canada. American Fisheries Society Special Publication 26McLean J.H. & Geiger D.L. (1998). New genera and species having the Fissurisepta shell form, with a generic-level phylogenetic analysis (Gastropoda: Fissurellidae). Contributions in Science, Natural History Museum of Los Angeles County 475: 1-32
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Puncturella cucullata: Brief Summary
provided by wikipedia EN
Puncturella cucullata, common name the hooded keyhole limpet, is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.
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