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Thordisa setosa
(Pease, 1860)
 
no photo
available

Maximum size:  55 mm (Kay, 1979).

Identification:  This is a purplish-red to gray animal with darker patches. The notum is covered with small papillae as well as scattered, long tentacular processes. The latter appear cream in the black and white photo in Kay, 1979.

Natural history:  We've never seen Thordisa setosa on Maui. However, Kay (1979) lists it as "rather common" on Oahu where they are found under rocks in shallow, back-reef habitats.

Distribution:  Oahu.

Taxonomic notes:  It was first reported from Hawaii in Pease, 1860 (as Doris setosa). Kay, (1979) considers Doris pilosa Pease, 1860 a synonym.

Photo:

Observations and comments:

Note 1:  ( )
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