Homely Aeolid
Eubranchus rustyus (Marcus, 1961)
Description 2
Ground color greyish-white to light cream or yellowish to a light brownish-yellow, numerous irregular specks of brownish to light grey or greenish over body and on cerata. Cerata somewhat inflated, may bear tubercles and are arranged in 4-6 groups on either side of dorsum, each bears a diffuse, subapical band of brownish to light grey or greenish, with whitish tip; cores vary from yellowish-green to brown. Oral tentacles a light shade of body color with translucent whitish tips and a subapical band of brownish to light grey or greenish, and a few small, irregular spots of the same color. Rhinophores smooth, colored as oral tentacles. Foot corners rounded. May be distinguished from Eubranchus olivaceus which has opaque white dots on head, & has dorso-medial band of olive green.
Size 2
Typically about 8mm in length.
Geographic Range 2
Mountain Pass, Ketchikan, AK, to Punta Abreojos, Baja California, Mexico.
Notes 2
Preys on hydroids such as Obelia sp. and Plumularia sp.
References 2
MACFARLAND, F. M. 1966. Studies of opisthobranchiate mollusks of the Pacific coast of North America. Memoirs of the California Academy of Sciences 6:1-546, pls. 1-72. PDF
MARCUS, Er. 1961. Opisthobranch mollusks from California. The Veliger 3(suppl.):1-85, pls. 1-10. PDF
McDONALD, G. R. 1983. A review of the nudibranchs of the California coast. Malacologia 24(1-2):114-276. PDF
SOUTHERN CALIFORNIA ASSOCIATION OF MARINE INVERTEBRATE TAXONOMISTS. 2018. A taxonomic listing of benthic macro- and megainvertebrates from infaunal & epibenthic monitoring and research programs in the southern California bight, edition 12, 1 July 2018, xviii + 167 pp. PDF
Synonyms 2
Capellinia rustya, Eubranchus occidentalis MacFarland, 1966
Additional Info 2
Sources and Credits
- (c) Gary McDonald, all rights reserved, uploaded by Gary McDonald
- (c) Gary McDonald, some rights reserved (CC BY-SA)
More Info
iNat Map
| Body | aeolidiform |
|---|---|
| Cerata | unbranched |
| Rhinophores | smooth |
