Placida Trinchese 1876

Placida is a genus of very small or minute sea slugs, marine opisthobranch gastropod mollusks in the family Limapontiidae.^[1]

Although similar in appearance to nudibranchs, species in this genus are actually Sacoglossans.

Species

Species within this genus include:^[1]

• Placida aoteana (Powell, 1937)
• Placida babai Ev. Marcus, 1982
• Placida barackobamai McCarthy, Krug & Valdés, 2017
• Placida brevirhina (Trinchese, 1874)
• Placida brookae McCarthy, Krug & Valdés, 2017
• Placida cremoniana (Trinchese, 1892)
• Placida dakariensis (Pruvot-Fol, 1953)
• Placida dendritica (Alder and Hancock, 1843)
• Placida fralila Burn, 1966
• Placida kevinleei McCarthy, Krug & Valdés, 2017
• Placida kingstoni T. E. Thompson, 1977
• Placida saronica (T.E. Thompson, 1988)
• Placida sudamericana Cetra, Gutiérrez Gregoric & Roche, 2021
• Placida tardyi (Trinchese, 1873)
• Placida verticillata Ortea, 1981
• Placida viridis (Trinchese, 1873)

Synonyms

• Placida brevicornis (A. Costa, 1867): synonym of Placida dendritica (Alder & Hancock, 1843)

Taxa inquirenda

• Placida capensis Macnae, 1954
• Placida daguilarensis Jensen, 1990 (taxon inquirendum)

References

• Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
• "Placida". Integrated Taxonomic Information System.
• Jensen K.E. (2007) Biogeography of the Sacoglossa (Mollusca, Opisthobranchia). Bonner Zoologische Beiträge 55:255–281.

Placida est un genre de limaces de mer de la famille des Limapontiidae.

Liste d'espèces

Selon World Register of Marine Species (7 décembre 2018)^[2] :

• Placida aoteana (Powell, 1937)
• Placida babai Ev. Marcus, 1982
• Placida barackobamai McCarthy, Krug & Valdés, 2017
• Placida brevicornis (A. Costa, 1867)
• Placida brevirhina (Trinchese, 1874)
• Placida brookae McCarthy, Krug & Valdés, 2017
• Placida capensis Macnae, 1954
• Placida cremoniana (Trinchese, 1892)
• Placida daguilarensis K. Jensen, 1990
• Placida dakariensis (Pruvot-Fol, 1953)
• Placida dendritica (Alder & Hancock, 1843)
• Placida fralila Burn, 1966
• Placida kevinleei McCarthy, Krug & Valdés, 2017
• Placida kingstoni T. E. Thompson, 1977
• Placida saronica (T. E. Thompson, 1988)
• Placida tardyi (Trinchese, 1874)
• Placida verticilata Ortea, 1982
• Placida viridis (Trinchese, 1874)

• Placida cf babai

• Placida cremoniana

• Placida dendritica

Notes et références

Placida Trinchese, 1847 è un genere di molluschi gasteropodi marini appartenenti alla famiglia Limapontiidae^[1].

Sebbene simili nell'aspetto ai nudibranchi, le specie di questo genere appartengono in realtà al superordine Sacoglossa.

Tassonomia

Il genere comprende le seguenti 18 specie, due delle quali al 2020 considerate ancora taxon inquirendum:^[1]

• Placida aoteana (Powell, 1937)
• Placida babai Ev. Marcus, 1982
• Placida barackobamai McCarthy, Krug & Valdés, 2017
• Placida brevicornis (A. Costa, 1867)
• Placida brevirhina (Trinchese, 1874)
• Placida brookae McCarthy, Krug & Valdés, 2017
• Placida cremoniana (Trinchese, 1892)
• Placida dakariensis (Pruvot-Fol, 1953)
• Placida dendritica (Alder & Hancock, 1843)
• Placida fralila Burn, 1966
• Placida kevinleei McCarthy, Krug & Valdés, 2017
• Placida kingstoni T. E. Thompson, 1977
• Placida saronica (T. E. Thompson, 1988)
• Placida tardyi (Trinchese, 1874)
• Placida verticilata Ortea, 1982
• Placida viridis (Trinchese, 1874)

• Placida capensis Macnae, 1954 (taxon inquirendum)
• Placida daguilarensis K. R. Jensen, 1990 (taxon inquirendum)

Alcune specie

• Placida babai

• Placida cremoniana

• Placida dendritica

Note

Bibliografia

• (EN) Powell A. W. B., New Zealand Mollusca, Auckland, New Zealand, William Collins Publishers Ltd, 1979, ISBN 0-00-216906-1.
• Jensen K.R. (2007) Biogeography of the Sacoglossa (Mollusca, Opisthobranchia). Bonner Zoologische Beiträge 55:255–281.

Placida est genus limacum marinorum parvorum ad minutum. Qui sunt gastropoda marina cladi heterobranchiorum familiae Limapontiidarum.^[1] Species, quamquam nudibranchiis similes visu, revera sunt Sacoglossa.

Species

Species intra hoc genus sunt:^[1]

• Placida barackobamai McCarthy, Krug & Valdés, 2017
• Placida brevicornis (A. Costa, 1867)
• Placida brookae McCarthy, Krug & Valdés, 2017
• Placida cremoniana (Trinchese, 1892)
• Placida daguilarensis Jensen, 1990
• Placida dakariensis (Pruvot-Fol, 1953)
• Placida dendritica (Alder and Hancock, 1843)
• Placida fralila Burn, 1966
• Placida kevinleei McCarthy, Krug & Valdés, 2017
• Placida kingstoni T. E. Thompson, 1977
• Placida saronica (T.E. Thompson, 1988)
• Placida tardyi (Trinchese, 1873)
• Placida verticillata Ortea, 1981
• Placida viridis (Trinchese, 1873)

Notae

Bibliographia

• Baden Powell, Arthur William. 1979. New Zealand Mollusca. Aucopoli: HarperCollins. ISBN 0002169061.
• Jensen, K. E. 2007. Biogeography of the Sacoglossa (Mollusca, Opisthobranchia). Bonner Zoologische Beiträge 55: 255–281.

Nexus externi

• "Placida". apud Integrated Taxonomic Information System

Placida is een geslacht van weekdieren uit de klasse van de Gastropoda (slakken).

Soorten

• Placida babai Ev. Marcus, 1982
• Placida brevicornis (A. Costa, 1867)
• Placida brevirhina (Trinchese, 1874)
• Placida cremoniana (Trinchese, 1892)
• Placida dakariensis (Pruvot-Fol, 1953)
• Placida dendritica (Alder & Hancock, 1843)
• Placida fralila Burn, 1966
• Placida kingstoni T. E. Thompson, 1977
• Placida saronica (T. E. Thompson, 1988)
• Placida tardyi (Trinchese, 1874)
• Placida verticilata Ortea, 1982
• Placida viridis (Trinchese, 1874)