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Peltodoris fellowsi
Kay & Young, 1969
 
Peltodoris fellowsi
Maximum size:  about 51 mm (Hoover, 2006).

Identification:  This is a firm, snow white dorid with black rhinophores and gills. Its firm texture and lack of a brown marginal line distinguish it from Ardeadoris scottjohnsoni.

Natural history:  Peltodoris fellowsi is a moderately common dorid that may be found resting under ledges or on shaded cliffs at depths of 3-24 m (10-80 ft). It occurs at moderately exposed to highly exposed sites and lays a white egg mass with a ruffled edge. It apparently feeds on a cream sponge. (Note 1)

Distribution:  Big Island, Maui, Lanai, Molokai, Oahu and Kauai: widely distributed in the western & central Pacific.

Taxonomic notes:  This species is listed in some sources as Hiatodoris fellowsi. It's referred to as "Fellow's nudibranch" in Hoover, 1998 & 2006 as well as the "snowball sea slug" in Hoover, 1997. It was probably first reported from Hawaii in Edmondson, 1946 (without name). It was named for David Fellows who collected the first specimens from Pupukea, Oahu in July, 1965 (Kay & Young, 1969).

Photo:  CP: Black Rock, Maui; May 6, 2003.

Observations and comments:

Note 1:  Although the included photos show minimal feeding damage on the sponge, we've seen several shots on-line showing H. fellowsi resting on the same species of sponge (some with substantially more feeding damage).
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