Atagema

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title: "Atagema" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["atagema", "taxa-named-by-john-edward-gray", "gastropod-genera"] description: "Genus of gastropods" topic_path: "general/atagema" source: "https://en.wikipedia.org/wiki/Atagema" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Genus of gastropods ::

| image = Atagema rugosa 001.jpg | image_caption = Atagema rugosa on the Atlantic Coast of the Cape Peninsula, South Africa | taxon = Atagema | authority = Gray, 1850 |type_species= Doris carinata Quoy & Gaimard, 1832 | synonyms_ref= | synonyms=

• Glossodoridiformia O'Donoghue, 1927
• Petelodoris Bergh, 1882
• Phlegmodoris Bergh, 1878
• Trippa Bergh, 1877
• Trippa (Phlegmodoris) Bergh, 1878 junior subjective synonym

Atagema is a genus of sea slugs, specifically dorid nudibranchs. They are marine gastropod molluscs in the family Discodorididae.

General characteristics

(Original description) The respiratory gills are significantly reduced and positioned at the distal end of the dorsal sac.

Species

Species so far described in this genus include:

• Atagema alba (O'Donoghue, 1927) hunchback doris
• Atagema anceps (Bergh, 1890)
• Atagema boucheti Valdés & Gosliner, 2001
• Atagema browni T. E. Thompson, 1980
• Atagema carinata (Quoy & Gaimard, 1832) - type species
• Atagema echinata (Pease, 1860)
• Atagema gibba Pruvot-Fol, 1951
• Atagema hispida (A. d'Orbigny, 1836)
• Atagema intecta (Kelaart, 1858)
• Atagema kimberlyae Innabi, Stout & Á. Valdés, 2023
• Atagema molesta (M. C. Miller, 1989)
• Atagema notacristata Camacho-Garcia & Gosliner, 2008
• Atagema ornata (Ehrenberg, 1831)
• Atagema osseosa Kelaart, 1858
• Atagema papillosa (Risbec, 1928)
• Atagema rugosa Pruvot-Fol, 1951 rugby-ball dorid, spined dorid
• Atagema scabriuscula (Pease, 1860)
• Atagema sobanovae (Innabi et al., 2023)
• Atagema spinosa (Risbec, 1928)
• Atagema spongiosa (Kelaart, 1858)
• Atagema triphylla (Bergh, 1892)
• Atagema tristis (Alder & Hancock, 1864)

;Species inquirenda:

• Atagema africana Pruvot-Fol, 1953
• Atagema albata (Burn, 1962)

;synonyms:

• Atagema paagoumenei (Risbec, 1928): synonym of Atagema spongiosa (Kelaart, 1858) (junior subjective synonym)
• Atagema prea (Ev. Marcus & Er. Marcus, 1967) is a synonym of Sclerodoris prea (Ev. Marcus & Er. Marcus, 1967)
• Atagema quadrimaculata Collier, 1963: synonym of Atagema alba (O'Donoghue, 1927)

References

References

1. Valdés Á. & Gosliner T.M. (2001). Systematics and phylogeny of the caryophyllidia-bearing dorids (Mollusca, Nudibranchia), with the description of a new genus and four new species from Indo-Pacific deep waters. Zoological Journal of the Linnean Society 133(2): 103-198
2. {{WRMS species. 137659. ''Atagema'' Gray, 1850. 17 December 2025
3. Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (eds), ''European Register of Marine Species: a check-list of the marine species in Europe and a bibliography of guides to their identification''. Patrimoines Naturels. 50: 180-213
4. [https://www.biodiversitylibrary.org/page/11632090 Gray, J.E. in Gray, M.E. (1850). Figures of molluscous animals, selected from various authors, etched for the use of students, vol. 4, pp. 1-124. Longman, Brown, Green and Longmans, London.] {{source-attribution
5. (2023-03-07). "Seven new "cryptic" species of Discodorididae (Mollusca, Gastropoda, Nudibranchia) from New Caledonia". ZooKeys.

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