@ARTICLE{TreeBASE2Ref27321,
author = {Juan Moles and Conxita Avila and Manuel AE Malaquias},
title = {Systematic revision of the Antarctic gastropod family Newnesiidae (Heterobranchia: Cephalaspidea) with the description of a new genus and one abyssal species},
year = {2017},
keywords = {biodiversity, deep-sea, Hocius, Newnesia, Southern Ocean, taxonomy},
doi = {},
url = {http://},
pmid = {},
journal = {Zoological Journal of the Linnean Society},
volume = {},
number = {},
pages = {},
abstract = {Antarctica has been hypothesised as a centre of origin of major heterobranch gastropod radiations like the Cephalaspidea and Nudipleura, yet the study of Antarctic heterobranch diversity has been largely hampered by lack of detailed morphological and anatomical studies, as well as comparative molecular phylogenetic approaches. Recently the new family of cephalaspidean molluscs Newnesiidae was proposed to include two species endemic to Antarctica. In this study, we review the diversity and relationships of the Newnesiidae using an expanded taxon sampling with broader geographical coverage including the Ross Sea, Weddell Sea, and the Drake Passage (Atlantic and Pacific sides of the Antarctic continent). An integrative taxonomic approach combining morphological and molecular phylogenetics is used. The trophic relationships of the family are studied for the first time using gut content analysis and scanning electron microscopy. A new species from abyssal depths is described, namely Newnesia abyssalis sp. nov., and the new genus Hocius gen. nov. is erected to reflect the phylogeny and the unique traits of the species H. joani (e.g. presence of an internal shell). The type species N. antarctica is redescribed based on specimens from the type locality. The diet results were not entirely conclusive but suggest diatoms to be the predominant food source, which would confirm herbivory as the plesiomorphic condition in Cephalaspidea gastropods.}
}
Trees for Study 21162
Citation title:
"Systematic revision of the Antarctic gastropod family Newnesiidae (Heterobranchia: Cephalaspidea) with the description of a new genus and one abyssal species".
Study name:
"Systematic revision of the Antarctic gastropod family Newnesiidae (Heterobranchia: Cephalaspidea) with the description of a new genus and one abyssal species".
This study is part of submission 21162
(Status: Published).
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Tr105276
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Fig. 3 |
Newnesiidae Bayesian phylogeny of the cephalaspidean families studied here based on the combined analyses of the mitochondrial COI and 16S rRNA and the nuclear 28S rRNA and H3 genes |
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