Intertidal Invertebrates of the Monterey Bay Area, California

Compiled & photographed by Gary McDonald, Long Marine Laboratory, University of California, Santa Cruz

Cuthona albocrusta (MacFarland, 1966)              
White-crusted Cuthona
Mollusca: Gastropoda: Opisthobranchia: Nudibranchia: Aeolidina: Tergipedidae
Geographic Range: Prince William Sound, AK, to La Paz, Baja California, Mexico Synonyms: Trinchesia albocrusta
Back to: Aeolidina Back to: Intertidal Invertebrates of the Monterey Bay Area
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Great Tidepool, Pacific Grove, Monterey Co., CA; 26 May 2009; 6mm total length.

Description: Ground color greyish-white, dorsum encrusted with opaque white extending from head to posterior row of cerata, from there postero-medially, as a broken line, to tail. Irregular spots of opaque white are scattered on sides of body. Cerata encrusted with opaque white on distal two thirds, leaving tips free, cores vary from pale or deep green to pale or deep raw umber. Oral tentacles with a few scattered flecks of opaque white. Rhinophores smooth, bearing various amount of encrusting white distally. Anterior foot corners rounded.
Size: Typically less than 8mm in length.

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Great Tidepool, Pacific Grove, Monterey Co., CA; 26 May 2009; 5mm total length.
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Great Tidepool, Monterey Co., CA; June 1986.
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Great Tidepool, Pacific Grove, Monterey Co., CA; 26 May 2009; 4mm total length.
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Asilomar, Monterey Co., CA; 27 Apr 2009; 6mm total length.
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Carmel Pt., Monterey Co., CA; 23 June 2009; 4mm total length.
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Great Tidepool, Pacific Grove, Monterey Co., CA; 24 June 2009; 4mm total length.
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Skpper's Docks, Elkhorn Slough, Monterey Co., CA; 18 Oct 1972; 6mm total length.
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Morro Bay, San Luis Obispo Co., CA; 26 Oct 1975; 5mm total length.

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