Discodoris heathi MacFarland, 1905
Common name(s): Gritty dorid
|Discodoris heathi, about 3 cm long, from about 10 m depth off Northwest Island|
|(Photo by: Dave Cowles, July 2005)|
How to Distinguish from Similar Species: This species is very similar to Dialula sandiegensis and, according to some keys, would be keyed as that species. However, it has spots rather than rings on the dorsum. In my experience there is a range of phenotypes in this group of nudibranchs from solid spots through spots with pale centers to rings; so it may be part of a species complex or the same species as D. sandiegensis.
Geographical Range: Vancouver Island, BC Canada to Bahia de San Qintin, Baja California, Mexico
Biology/Natural History: Feeds on sponges such as Halichondrea panacea, Myxilla incrustans, and Adocia gellindra.
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Morris et al., 1980
View of the gills
In this view of the anterior part of the body, one can see the stubby rhinophores and also the papillae on the upper surface of the foot.
Photo by Dave Cowles, July 2005
An underwater photo taken by Kirt Onthank, June 2007