Aporodoris Millegrana

''Aporodoris millegrana'' is a species of sea slug, a dorid nudibranch, shell-less marine gastropod mollusk in the family Discodorididae.

Taxonomy

This species was originally discovered and described (under the name ''Doris millegrana'') by Joshua Alder and Albany Hancock in 1854. Hermann von Ihering (1886) designated ''Doris millegrana'' Alder & Hancock, 1854 as a type species of the newly created genus '' Aporodoris'' Ihering, 1886. Charles Eliot (1910) Eliot C. (1910). ''A monograph of the British nudibranchiate mollusca: with figures of the species''. Part 8 (supplementary). London: Ray Society. page
106-107
page
148-149
provisionally used the name ''Aporodoris millegrana'' but he expressed doubts about validity of the genus ''Aporodoris'' and he has thought that ''Aporodoris'' could be synonymous with genus ''Thordisa'' Bergh, 1877. Thompson & Brown (1981)Thompson T. E. & Brown G. H. (1981) "Allocation of the nudibranch ''Doris millegrana'' Alder & Hancock, 1854 to the genus ''Discodoris'' Bergh, 1877, after re-examination of the type material". '' Zoological Journal of the Linnean Society'' 72(3): 263-266. doi:10.1111/j.1096-3642.1981.tb01572.x. assigned this species to the genus ''Discodoris'' Bergh, 1877. Valdés & Gosliner (2001) synonymized genus ''Aporodoris'' with the genus ''Taringa'' Er. Marcus, 1955 because they (erroneously) considered the generic name ''Aporodoris'' unused since 1886 and they gave the precedence to widely used generic name ''Taringa''.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. doi:10.1111/j.1096-3642.2001.tb00689.x. Valdés & Gosliner (2001) made an erroneous reversal precedence and International Commission on Zoological Nomenclature should publish a decision of what name should be used in such cases according to th
Article 23.10
of the International Code of Zoological Nomenclature. In the meantime the name in prevailing usage must be used (according to the Article 23.10).

Dayrat (2010) agreed with synonymization of the genera ''Aporodoris'' and ''Taringa''. But he considered the generic name ''Aporodoris'' and the specific name ''Aporodoris millegrana'' as valid with strict application of the Principle of Priority.

Distribution

This species occurs in European waters: British Isles, France, Tenerife, Spain, Mediterranean Sea.Ballesteros, Manuel, Enric Madrenas, Miquel Pontes et al. (2012-2018
''Aporodoris millegrana''
in OPK-Opistobranquis, Published: 4/10/2013, Accessed: 2018-11-27.

Alder & Hancock (1854) mentioned the locality Torbay, England in their paper"''Taringa millegrana''"
CLEMAM, accessed 14 June 2012. but the type locality should be Torquay according to the name on labels of type material.

Description

Alder and Hancock have described the new species according to preserved specimens. Alder's and Hancock's original text (the type description) reads as follows:

The length of preserved specimens of type material varies from 15 mm to 28 mm. The color of live specimen is brown-orange or dark violet-brown. The color of preserved specimens is yellow. There are light violet-brown rhinophores with yellowish white apex on the head. There are 120 μm long caryophyllidia covering the whole dorsal part of the body. There are also 80 μm long tubercules on the body.

References

This article incorporates public domain text from the reference.

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Discodorididae
Gastropods described in 1854