Orange-peel doris
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| Orange-peel doris | ||||||||||||
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| Acanthodoris lutea MacFarland, 1925 |
The orange-peel doris, (Acanthodoris lutea), is a species of nudibranch or sea slug, a shell-less marine opisthobranch gastropod mollusk in the family Onchidorididae.
This species is the largest of the northeastern Pacific acanthodorids. It is a common species, and it is very noticeable because of its bright coloration, which is aposematic. The species name "lutea" is a Latin word which means an orange-yellow color.
As for the generic name, "acantho" comes from the Greek word meaning spiny, and "doris" is the name of an ancient Greek sea nymph.
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[edit] Distribution
This dorid nudibranch lives on the Pacific coast of North America from Cape Arago, Oregon to northern Baja California, Mexico.
[edit] Habitat
The orange-peel doris lives in the intertidal and subtidal zones on rocky shores.
[edit] Description
This nudibranch grows to about 30 mm in length. It has a bright orange papillated dorsum covered with yellow specks. This coloration is a reminder to would be predators of its distasteful nature, in other words the color is aposematic.
[edit] Life habits
Acanthodoris lutea feeds on encrusting bryozoans. It turns the chemicals received from the bryozoan food into a noxious metabolite which is toxic to possible predators (Morris et al. 1980). This species is aposomatically colored, warning predators of this toxic deterrent. If you handle this dorid you will smell the deterrent chemical on your fingers: it has the pungent aroma of sandalwood.
[edit] References
[edit] Books
Behrens D.W., 1980, Pacific Coast Nudibranchs: a guide to the opisthobranchs of the northeastern Pacific, Sea Challenger Books, Washington
