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Opisthobranchs from the western Indian Ocean, with descriptions of two new species and ten new records (Mollusca, Gastropoda).

Yonow N - Zookeys (2012)

Bottom Line: Two species are described as new: Cyerce bourbonicasp. n. from La Réunion and Doriopsilla nigrocerasp. n. from the Persian Gulf coast of Saudi Arabia.Chromodoris cavae is removed from its synonymy with Chromodoris tennentana and redescribed from specimens from La Réunion, while several new synonyms are proposed for some commonly occurring species.Risbecia bullockii is recorded for the second time from the Indian Ocean and assigned to its correct genus.

View Article: PubMed Central - PubMed

Affiliation: Conservation Ecology Research Team, Department of Biosciences, Swansea University, Singleton Park, Swansea SA2 8PP, Wales, UK.

ABSTRACT
Seventy species of opisthobranchs are described in this work based on collections from the Persian Gulf, Socotra, Kenya, Zanzibar, Madagascar, La Réunion, Mauritius, the Seychelles, the Maldives, and Sri Lanka. Ten species are newly recorded from the western Indian Ocean and four species are recorded in the scientific literature for the first time since their original descriptions. Two species are described as new: Cyerce bourbonicasp. n. from La Réunion and Doriopsilla nigrocerasp. n. from the Persian Gulf coast of Saudi Arabia. Chromodoris cavae is removed from its synonymy with Chromodoris tennentana and redescribed from specimens from La Réunion, while several new synonyms are proposed for some commonly occurring species. Risbecia bullockii is recorded for the second time from the Indian Ocean and assigned to its correct genus.

No MeSH data available.


Chelidonura cf. punctata, Seychelles, photo: P Kemp (no spcm).
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Figure 34: Chelidonura cf. punctata, Seychelles, photo: P Kemp (no spcm).

Mentions: Chelidonura punctata appears to be restricted to the western Indian Ocean; to date there are no records of the species occurring in the Red Sea, the Gulf of Aden, the Gulf of Oman, or the Persian Gulf. The similar species found in the Gulf of Eilat (recorded erroneously as Chelidonura punctata in Yonow 2008) and in the Seychelles (pers. obs.) is illustrated here as Chelidonura cf. punctata (Plate 5) for comparison as no specimens are available; it has many small, yellower spots which appear to be slightly raised, lacks the white margins to the parapodia but has broken white markings along the posterior margin of the posterior shield, and the tails are very differently proportioned. It is also appears to be small, but without specimens, identification is impossible.


Opisthobranchs from the western Indian Ocean, with descriptions of two new species and ten new records (Mollusca, Gastropoda).

Yonow N - Zookeys (2012)

Chelidonura cf. punctata, Seychelles, photo: P Kemp (no spcm).
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3376724&req=5

Figure 34: Chelidonura cf. punctata, Seychelles, photo: P Kemp (no spcm).
Mentions: Chelidonura punctata appears to be restricted to the western Indian Ocean; to date there are no records of the species occurring in the Red Sea, the Gulf of Aden, the Gulf of Oman, or the Persian Gulf. The similar species found in the Gulf of Eilat (recorded erroneously as Chelidonura punctata in Yonow 2008) and in the Seychelles (pers. obs.) is illustrated here as Chelidonura cf. punctata (Plate 5) for comparison as no specimens are available; it has many small, yellower spots which appear to be slightly raised, lacks the white margins to the parapodia but has broken white markings along the posterior margin of the posterior shield, and the tails are very differently proportioned. It is also appears to be small, but without specimens, identification is impossible.

Bottom Line: Two species are described as new: Cyerce bourbonicasp. n. from La Réunion and Doriopsilla nigrocerasp. n. from the Persian Gulf coast of Saudi Arabia.Chromodoris cavae is removed from its synonymy with Chromodoris tennentana and redescribed from specimens from La Réunion, while several new synonyms are proposed for some commonly occurring species.Risbecia bullockii is recorded for the second time from the Indian Ocean and assigned to its correct genus.

View Article: PubMed Central - PubMed

Affiliation: Conservation Ecology Research Team, Department of Biosciences, Swansea University, Singleton Park, Swansea SA2 8PP, Wales, UK.

ABSTRACT
Seventy species of opisthobranchs are described in this work based on collections from the Persian Gulf, Socotra, Kenya, Zanzibar, Madagascar, La Réunion, Mauritius, the Seychelles, the Maldives, and Sri Lanka. Ten species are newly recorded from the western Indian Ocean and four species are recorded in the scientific literature for the first time since their original descriptions. Two species are described as new: Cyerce bourbonicasp. n. from La Réunion and Doriopsilla nigrocerasp. n. from the Persian Gulf coast of Saudi Arabia. Chromodoris cavae is removed from its synonymy with Chromodoris tennentana and redescribed from specimens from La Réunion, while several new synonyms are proposed for some commonly occurring species. Risbecia bullockii is recorded for the second time from the Indian Ocean and assigned to its correct genus.

No MeSH data available.