Porter's Chromodorid

Felimare porterae (Cockerell, 1901)

Description 2

General ground color ultramarine blue; a median stripe of pale blue extends from between the rhinophores to just anterior of branchial plumes and continues for a short distance just posterior of branchial plumes; a similar stripe occurs dorso-medially on posterior portion of foot which extends beyond dorsum. A stripe of yellow-orange extends longitudinally on either side of dorsum from just posterior of rhinophores to posterior of branchial plumes, where the stripes meet; a line of similar color forms an arc just anterior of rhinophores. Dorsum edged with a narrow, white line. Rhinophores darker blue than dorsum, with 12-14 lamellae. Branchial plumes 9-12, unipinnate, ultramarine blue. Labial tentacles conical to short digitiform. May be distinguished from Felimida macfarlandi which is more purple in color, and has a longitudinal yellow stripe medially on dorsum.

Size 2

Up to about 35mm in length.

Geographic Range 2

Monterey Bay, CA, to Bahía Tortugas, Baja California, Mexico.

Notes 2

Found in the low rocky intertidal, and subtidal to 18 meters. Extremely rare in Monterey Bay area, I've seen only 3 individuals in 48 years.

References 2

BERTSCH, H. 1978a. The Chromodoridinae nudibranchs from the Pacific coast of America.—Part III. The Genera Chromolaichma and Mexichromis. The Veliger 21(1):70-86, 2 plates. PDF

JOHNSON, R. F., & T. M. GOSLINER. 2012. Traditional taxonomic groupings mask evolutionary history: A molecular phylogeny and new classification of the chromodorid nudibranchs. PLoS ONE 7(4):e33479. PDF

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

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

Chromodoris porterae, Hypselodoris porterae, Mexichromis porterae.

Additional Info 2

WoRMS

Sources and Credits

  1. (c) Gary McDonald, all rights reserved, uploaded by Gary McDonald
  2. (c) Gary McDonald, some rights reserved (CC BY-SA)

More Info

iNat Map

Body doridiform
Classification Doridina
Dorsum smooth
Labial tentacles digitiform
Rhinophores perfoliate