Mexichromis trilineata

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Mexichromis trilineata
Pectenodoris trilineata.jpg
Mexichromis trilineata
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Nudibranchia
Suborder: Doridina
Superfamily: Doridoidea
Family: Chromodorididae
Genus: Mexichromis
Species:
M. trilineata
Binomial name
Mexichromis trilineata
(Adams & Reeve, 1850) [1]
Synonyms
  • Goniodoris trilineata A. Adams & Reeve, 1850 basionym
  • Chromodoris virgata Bergh, 1905 [2]
  • Pectenodoris trilineata (A. Adams & Reeve, 1850)

Mexichromis trilineata is a colourful species of sea slug, specifically a dorid nudibranch. This marine gastropod mollusc is in the family Chromodorididae. [3] [4] In 2012 the genus Pectenodoris was included into Mexichromis . [5]

Contents

Mexichromis trilineata Pectenodoris trilineata (Nudibranch).jpg
Mexichromis trilineata

Distribution

Mexichromis trilineata has been found in Sumbawa, Sulawesi and Bali, Indonesia; the Philippines, the South China Sea, Heron Island, Great Barrier Reef and Queensland, Australia. [6]

Description

Mexichromis trilineata usually ranges from 7 mm to 15 mm in length, with an elongate to broadly oval body shape. The tail extends slightly beyond the posterior margin. [7] Mexichromis trilineata have three yellow longitudinal bands outlined in white, with the entire mantle edged with a fine white line. They have a few patches of yellow edged with white around the mantle edge, and the defensive mantle glands, arranged around the edge in roughly two series, are visible as pale pink patches. [8] The gills and rhinophores are typically violet at their bases and then translucent white with red markings. [9]

Although individuals of Mexichromis trilineata usually have three longitudinal lines as its name suggests, sometimes these lines are broken into a series of shorter lines, while occasionally the outer two lines are absent. Some specimens have yellow or orange markings on the white lines. [6]

Related Research Articles

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References

  1. ↑ Adams A. & Reeve L. (1848–1850). Mollusca. In A. Adams (ed.), The zoology of the voyage of H.M.S. Samarang, under the command of Captain Sir Edward Belcher, C.B., F.R.A.S., F.G.S., during the years 1843–1846. Reeve & Benham, London, x + 87 pp., 24 pls. [i-x, 1–24, pls 1–9 (1848); 25–87, pls 10–24 (1850)] page 68, plate XVII, figures 4-4a
  2. ↑ Bergh, L. S. R. (1905). Die Opisthobranchiata der Siboga-expedition. Siboga-Expeditie. 50: 1–248, pls 1–20 page 161
  3. ↑ MolluscaBase (2018). Mexichromis trilineata (A. Adams & Reeve, 1850). Accessed on 2019-01-08.
  4. ↑ Johnson, R.F. & Gosliner, T.M. (1998). The genus Pectenodoris (Nudibranchia: Chromodorididae) from the Indo-Pacific, with the description of a new species. Proceedings of the California Academy of Sciences, 50(12): 295–306.
  5. ↑ 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(4): e33479.
  6. 1 2 Rudman, W.B., 1998 (17 December) Pectenodoris trilineata (Adams & Reeve, 1850). [In] Sea Slug Forum. Australian Museum, Sydney.
  7. ↑ 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: 115–273.
  8. ↑ Rudman, W.B. (1986) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: Nouméa purpurea and Chromodoris decora colour groups. Zoological Journal of the Linnean Society 86(4): 309–353.
  9. ↑ Yonow N. 2001. Results of the Rumphius Biohistorical Expedition to Ambon (1990). Part 11. Doridacea of the families Chromodorididae and Hexabranchidae (Mollusca, Gastropoda, Opisthobranchia, Nudibranchia), including additional Moluccan material. Zool. Med. Leiden 75 (1), 24.xii.2001: 1–50, figs 1–12, colour plts 1–5— ISSN 0024-0672.
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