Look Alikes
provided by Invertebrates of the Salish Sea
How to Distinguish from Similar Species: The yellow line around the edges, yellow-tipped tubercles, and yellow tips on the rhinophores are distinctive.
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- Rosario Beach Marine Laboratory
Comprehensive Description
provided by Invertebrates of the Salish Sea
Body usually 25-40 mm, can be 80 mm. Whitish to light yellow. Narrow band of yellow around margin and tips of tubercles are bright yellow. Has bipinnate gills, numbering six. Dorsum feels warty and gritty to touch, due to spicules. How to Distinguish from Similar Species: The yellow line around the edges, yellow-tipped tubercles, and yellow tips on the rhinophores are distinctive.
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- Rosario Beach Marine Laboratory
Habitat
provided by Invertebrates of the Salish Sea
Common under rocky ledges with sponges and tunicates
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- Rosario Beach Marine Laboratory
Habitat
provided by Invertebrates of the Salish Sea
Depth Range: Low-intertidal zone and subtidal to 45m
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- Rosario Beach Marine Laboratory
Comprehensive Description
provided by Invertebrates of the Salish Sea
Biology/Natural History: Feeds on sponges, including Halichondria panicea, Myxilla incrustans, and Higginsia sp. According to Baltzley et al.,, many gastropods, including this species, have a special network of pedal ganglia in their foot which assists in crawling. The two main neurons involved produce pedal peptides which elicit an increase in the rate of beating of cilia on the foot, resulting in crawling.
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- Rosario Beach Marine Laboratory
Distribution
provided by Invertebrates of the Salish Sea
Geographical Range: Vancouver Island to Punta Eugenia
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- Rosario Beach Marine Laboratory