Intertidal Invertebrates of the Monterey Bay Area, California

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

Cuthona abronia (MacFarland, 1966)              
Graceful Cuthona
Mollusca: Gastropoda: Opisthobranchia: Nudibranchia: Aeolidina: Tergipedidae
Geographic Range: Makaw Bay, WA, to Islas Coronados, Baja California, Mexico. Synonyms: Trinchesia abronia
Back to: Aeolidina Back to: Intertidal Invertebrates of the Monterey Bay Area
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Carmel Pt., Monterey Co., CA; 28 Apr 2009; 11mm total length.

Description: Ground color translucent greyish-white, dorsum encrusted with a few opaque white to pale yellow dots, a blotch of the same color occurs just posterior of rhinophores and a line of similar color occurs dorso-medially on the tail. Cerata bear about 3, sometimes incomplete, narrow bands of encrusting white to pale yellow which form boundaries between colored segments of the cores. Cores pale yellow in distal third, medial third olive green to brown, and proximal third maroon to carmine. Oral tentacles bear a band of purple midway along their length, with a pale yellow ring proximal of this and also encrusting distal one thirds of tentacles, frequently with diffuse purple proximally, Rhinophore smooth, colored as oral tentacles. Anterior foot corners rounded.
Size: Typically less than 10mm in length.

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Carmel Pt., Monterey Co., CA; 28 Apr 2009; 11mm total length.
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Carmel Pt., Monterey Co., CA; 25 May 2009; 7mm total length.
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Carmel Pt., Monterey Co., CA; 25 May 2009; 9mm total length.
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Great Tidepool, Pacific Grove, Monterey Co., CA; 26 May 2009; 8mm total length.
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Great Tidepool, Pacific Grove, Monterey Co., CA; 24 June 2009; 5mm total length.
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Great Tidepool, Monterey Co., CA; 6 May 1973; 7mm total length.
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Asilomar, Monterey Co., CA; 9 Aug 1972; 8mm total length.
 

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