Cnidosac-Related Structures in Embletonia (Mollusca, Nudibranchia) Compared with Dendronotacean and Aeolidacean Species

Martin, Rainer de; Tomaschko, Karl-Heinz; Heß, Martin; Schrödl, Michael

doi:10.2174/1874450801004010096

Cited by 18 publications

(23 citation statements)

References 12 publications

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“…the Nudipleura (Wägele and Willan 2000), which comprised monophyletic Nudibranchia and monophyletic Pleurobranchoidea as sister groups. Re-analyses of the latter dataset with modified taxon and character coverage indicated the sensitivity of morphology-based nudipleuran topologies (Martynov and Schrödl 2008;Martin et al 2009Martin et al , 2010; the same applies to much more extensive euthyneuran analyses, e.g. by Wägele and Klussmann-Kolb (2005) (Fig.…”

Section: Classification and Phylogenetic Concepts Of Opisthobranchia mentioning

confidence: 63%

Flashback and foreshadowing—a review of the taxon Opisthobranchia

et al. 2013

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Opisthobranchia have experienced an unsettled taxonomic history. At the moment their taxonomy is in state of dramatic flux as recent phylogenetic studies have revealed traditional Opisthobranchia to be paraphyletic or even polyphyletic, allocating some traditional opisthobranch taxa to other groups of Heterobranchia, e.g. Pulmonata. Here we review the history of Opisthobranchia and their subgroups, explain their traditionally proposed relationships, and outline the most recent phylogenetic analyses based on various methods (morphology, single gene and multiple gene analyses, as well as genomic data). We also present a phylogenetic hypothesis on Heterobranchia that, according to the latest results, represents a consensus and is the most probable one available to date. The proposed phylogeny supports the Acteonoidea outside of monophyletic Euthyneura, the basal euthyneuran split into Nudipleura (Nudibranchia plus Pleurobranchoidea) and the recently established taxon Tectipleura. The latter divides into the Euopisthobranchia, containing most of the major traditional opisthobranch clades, and the Panpulmonata, with a mix of the former opisthobranch, putative allogastropod and pulmonate taxa. This "new euthyneuran tree" rejects the traditional taxa Opisthobranchia and Pulmonata, and, in particular, has profound implications for preconceived textbook scenarios of opisthobranch and pulmonate evolution, which must now be reconsidered. In the absence of systematic barriers, research communities-which have traditionally investigated marine and non-marine heterobranchs separately-need to interact and finally merge for the sake of science.

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Section: Classification and Phylogenetic Concepts Of Opisthobranchia mentioning

confidence: 63%

Flashback and foreshadowing—a review of the taxon Opisthobranchia

et al. 2013

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“…These studies support the monophyly of the aeolids, identifying the presence of cnidosacs and the transformation of the oral veil into oral tentacles as synapomorphies [26]. Only Martin et al [27] rejected the monophyletic status of Aeolidida after including Hancockia and Embletonia .…”

Section: Introductionmentioning

confidence: 95%

“…The systematic relationships between genera and/or species of Aeolidiidae itself have been subject of controversy for the last seventy years [3]–[4], [8], [30], [34]–[43]. In 1939, based on differences in the position of the nephroproct, Odhner [27] removed Spurilla and Berghia from Aeolidiidae and placed them in a new family called Spurillidae. Haefelfinger & Stamm [35] erected the genus Limenandra with L. nodosa as the type species and transferred Baeolidia fusiformis Baba, 1949 to this new genus.…”

Section: Introductionmentioning

confidence: 99%

A Tale That Morphology Fails to Tell: A Molecular Phylogeny of Aeolidiidae (Aeolidida, Nudibranchia, Gastropoda)

et al. 2013

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Aeolidida is one of the largest clades of nudibranchs with at least 560 known species. However, its systematics has not been studied in a comprehensive manner. Phylogenetic analyses of larger clades such as Nudibranchia or Cladobranchia have usually included a poor sample of aeolids. Furthermore, phylogenetic studies at the family or generic level in Aeolidida are a few and far between. The first molecular phylogeny of the aeolid family Aeolidiidae is presented here. This study, the most comprehensive for Aeolidida to date, uses new sequences of two mitochondrial (COI and 16S) genes and one nuclear gene (H3). 251 specimens from members of seven families of Aeolidida, including 39 species of Aeolidiidae were studied. Excluding Pleurolidia juliae, Aeolidiidae is monophyletic. Our results resolve the systematic relationships within the Aeolidiidae at a generic level, requiring changes in the systematics of this family. Spurilla, Anteaeolidiella, Limenandra and Aeolidia are well-supported and monophyletic clades. Aeolidiella stephanieae is transferred to Berghia and Aeolidiopsis ransoni and Spurilla salaamica to Baeolidia, to maintain the monophyletic lineages reflected in this study. The systematics of Cerberilla remains unclear. Some species earlier attributed to Aeolidiella are now grouped in a previously unnamed clade that we designate as Bulbaeolidia gen. nov.

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“…On describing the members of the family Embletoniidae and comparing the cnidosacs in dendronotaceans and aeolidaceans, Martin et al . () reached the conclusion that it is unlikely that this enigmatic family should be included within Aeolidacea; Philine vestita (Philippi, 1840). Until recently, this species was usually reported as Philine retifera (Forbes, 1844) (see Crocetta et al .…”

Section: Resultsmentioning

confidence: 99%

“…Embletoniidae has been considered to belong to aeolids, related to the Tergipedidae, but there have also been considerations that argued in favour of a position amongst dendronotacean nudibranchs (Miller & Willan 1991). On describing the members of the family Embletoniidae and comparing the cnidosacs in dendronotaceans and aeolidaceans, Martin et al (2010) reached the conclusion that it is unlikely that this enigmatic family should be included within Aeolidacea; Philine vestita (Philippi, 1840). Until recently, this species was usually reported as Philine retifera (Forbes, 1844) (see .…”

Section: Flagged Speciesmentioning

confidence: 99%

Adriatic ‘opisthobranchs’ (Gastropoda, Heterobranchia): shedding light on biodiversity issues

Zenetos

Mačić²,

Jaklin

et al. 2016

Marine Ecology

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We herein review the Adriatic opisthobranch fauna, provide an updated checklist of 223 species and assess their distribution at regional and country levels. New Adriatic records are provided for 67 opisthobranch taxa, adding three new records for the Italian coastline, five new records for Albania, eight for Croatia and 15 for Montenegro. The presence of Hermaea bifida (Montagu, 1815), Hermaea variopicta (Costa A., 1869) and Facelina annulicornis (Chamisso & Eysenhardt, 1821) is reported for the first time from anywhere in the Adriatic Sea. Including the new findings, our inventory includes 28 species from Albania, 163 from Croatia, 178 from the Italian coastline of the Adriatic, 41 from Montenegro and 74 from Slovenia. No records were available from Bosnia and Hercegovina. Ninety species (40.4%) are widespread, and were recorded from all three main divisions (Northern, Western and Eastern Adriatic), whilst 79 species (35.4%) were reported from only one of them. At sub‐division levels, the Albanian inventory is the most dissimilar to the other country/regional lists, presumably because of the lack of targeted field surveys. The highest similarity is observed amongst the Western Adriatic, Croatia and the Italian Ionian coastline. Seven alien, one possible alien and three cryptogenic opisthobranchs were reliably recorded from the Adriatic Sea. The first Mediterranean records of five species were in the Adriatic Sea, of which four species have not been found elsewhere in the Mediterranean. Shipping and aquaculture are the probable pathways for most of the alien species. A steady rate of one to two alien introductions per decade since the 1970s was evident. The Northern Adriatic coasts are the most affected by alien invasions, probably due to repeated local introductions along with shellfish transfers (oysters, mussels, Manila clams), and heavy maritime transport.

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Cnidosac-Related Structures in Embletonia (Mollusca, Nudibranchia) Compared with Dendronotacean and Aeolidacean Species

Cited by 18 publications

References 12 publications

Flashback and foreshadowing—a review of the taxon Opisthobranchia

Flashback and foreshadowing—a review of the taxon Opisthobranchia

A Tale That Morphology Fails to Tell: A Molecular Phylogeny of Aeolidiidae (Aeolidida, Nudibranchia, Gastropoda)

Adriatic ‘opisthobranchs’ (Gastropoda, Heterobranchia): shedding light on biodiversity issues

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