Chromolaichma sedna

Chromolaichma sedna
Doriprismatica sedna
Chromolaichma sedna
Secure
Secure (NatureServe)
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Nudibranchia
Family: Chromodorididae
Subfamily: Chromodoridinae
Genus: Chromolaichma
Species:
C. sedna
Binomial name
Chromolaichma sedna
Synonyms
  • Casella sedna Ev. Marcus & Er. Marcus, 1967 (basionym)
  • Chromodoris fayae Lance, 1968
  • Chromodoris sedna (Ev. Marcus & Er. Marcus, 1967)
  • Dorisprismatica sedna (Ev.Marcus & Er. Marcus, 1967)
  • Glossodoris sedna (Ev. Marcus & Er. Marcus, 1967)

Chromolaichma sedna is a species of colorful sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.

Taxonomy

This species was previously placed in the genus Glossodoris Ehrenberg, 1831, but it was transferred to genus Doriprismatica by Johnson & Gosliner in 2012 on the basis of molecular results.

Distribution

Originally described from the Eastern Pacific, records from the Caribbean are considered the result of a recent introduction, presumably human-introduced. The indigenous distribution of Doriprismatica sedna includes Eastern Pacific: from the Gulf of California to the Galapagos Islands and non-indigenous in the Western Atlantic: Florida, Belize, Bahamas and Panama.

Description

Chromolaichma sedna

The body is oval and the mantle margin is ruffled. The foot and mantle of this seaslug have three different colours at the border: white, red and yellow on the outer border. Background colour is white with two coloured bands (inner red and outer yellow) bordering the foot and mantle. Upper half of the rhinophoral clubs and tips of the branchial leaves of the gill are red. It is up to 65 mm long.

Habitat

This species was found on mangrove roots covered with sponges in Panama. The minimum recorded depth for this species is 1 m; maximum recorded depth is 29 m.

Prey of Chromolaichma sedna include demosponge Myxilla incrustans.

The diet of Doriprismatica sedna was studied by Verdín Padilla et al. (2010) on the Pacific coast of Mexico. By examining the stomach content and feces, they found that this species feeds exclusively on spiculated demosponges and exhibits a variable diet, which includes 17 different species: Mycale psila, Microciona sp., Myxilla incrustans, Lissodendoryx isodictialis, Haliclona caerulea, Haliclona turquoisia, Callyspongia californica, Cliona californiana, Cliona amplicavata, Cliona flavifodina, Cliona papillae, Pione mazatlanensis, Pione carpenteri, Tethya taboga, Aaptos niger, Geodia media and Dysidea uriae.

References

This article incorporates Creative Commons (CC-BY-4.0) text from the reference

  1. ↑ NatureServe. "Glossodoris sedna". NatureServe Explorer. Arlington, Virginia. Retrieved 9 April 2026.
  2. 1 2 BMolluscaBase eds. (2025). MolluscaBase. Chromolaichma sedna (Ev. Marcus & Er. Marcus, 1967). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=558502 on 2025-08-30
  3. ↑ Johnson R. F & Gosliner T. M. (2012). "Traditional taxonomic groupings mask evolutionary history: A molecular phylogeny and new classification of the chromodorid nudibranchs". PLoS One 7: e33479. doi:10.1371/journal.pone.0033479
  4. 1 2 3 4 5 6 7 8 9 10 11 Goodheart J. A., Ellingson R. A., Vital X. G., Galvão Filho H. C., McCarthy J. B., Medrano S. M., Bhave V. J., García-Méndez K., Jiménez L. M., López G. & Hoover C. A. (2016). "Identification guide to the heterobranch sea slugs (Mollusca: Gastropoda) from Bocas del Toro, Panama". Marine Biodiversity Records 9(1): 56. doi:10.1186/s41200-016-0048-z
  5. ↑ Miller M. D. 1999. Doriprismatica sedna. The Slug Site.
  6. ↑ Bertsch H. (1977) The Chromodoridinae nudibranchs from the Pacific coast of America.- Part I. Investigative methods and supra-specific taxonomy. The Veliger 20(2): 107-118.
  7. 1 2 Rudman, W.B., 2000 (October 10) Glossodoris sedna (Marcus & Marcus, 1967). [In] Sea Slug Forum. Australian Museum, Sydney.
  8. ↑ Rudman W.B. (1990) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: further species of Glossodoris, Thorunna and the Chromodoris aureomarginata colour group. Zoological Journal of the Linnean Society 100: 263-326 page(s): 324
  9. ↑ Rudman W.B. (1984) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: a review of the genera. Zoological Journal of the Linnean Society 81 (2/3): 115-273. page(s): 152
  10. ↑ Debelius, H. & Kuiter, R.H. (2007) Nudibranchs of the world. ConchBooks, Frankfurt, 360 pp. ISBN 978-3-939767-06-0 page(s): 197
  11. ↑ Turgeon, D.; Quinn, J.F.; Bogan, A.E.; Coan, E.V.; Hochberg, F.G.; Lyons, W.G.; Mikkelsen, P.M.; Neves, R.J.; Roper, C.F.E.; Rosenberg, G.; Roth, B.; Scheltema, A.; Thompson, F.G.; Vecchione, M.; Williams, J.D. (1998). Common and scientific names of aquatic invertebrates from the United States and Canada: mollusks. 2nd ed. American Fisheries Society Special Publication, 26. American Fisheries Society: Bethesda, MD (USA). ISBN 1-888569-01-8. IX, 526 + cd-rom pp. page(s): 127
  12. ↑ Rudman W.B. (1985) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: Chromodoris aureomarginata, C. verrieri and C. fidelis colour groups. Zoological Journal of the Linnean Society 83: 241-299. page(s): 295
  13. 1 2 Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. doi:10.1371/journal.pone.0008776.
  14. 1 2 Verdín Padilla C. J., Carballo J. L. & Camacho M. L. (2010). "A qualitative assessment of sponge-feeding organisms from the Mexican Pacific Coast". Open Marine Biology Journal 4: 39–46. PDF Archived 2016-10-27 at the Wayback Machine
  15. ↑ Rosenberg, G., F. Moretzsohn, and E. F. García. 2009. Gastropoda (Mollusca) of the Gulf of Mexico, Pp. 579–699 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas.