Unmasking Antarctic mollusc lineages: novel evidence from philinoid snails (Gastropoda: Cephalaspidea)
Unmasking Antarctic mollusc lineages: novel evidence from philinoid snails (Gastropoda: Cephalaspidea)
复制标题
揭开南极软体动物谱系的面纱：来自 philinoid 蜗牛（腹足纲：头足纲）的新证据
作者：
J. Moles;C. Ávila;M. A. Malaquias
自引入以来，Philine 属是众多软体动物蜗牛的缩影，具有很强的形态趋同性。最近，一项包括广泛分类单元抽样在内的分子分析将该群体分为四个非姐妹科。尽管它们在寒冷和深水中特别多样化，但目前还没有针对南极同类的全面研究。在这里，我们的形态解剖学和分子数据表明该群体的系统学发生了重大变化。在八个已知物种中，有两个是同义的，Antarctophiline amoena 与 A. alata，A. gouldi 与 A. gibba，还有两个被转移到 Antarctophiline 属，即 A. apertissima Comb.n。和 A. falklandica comm.n。描述了两个新物种，A. easmithi sp.n。和 A. amundseni sp.n。来自东部威德尔海的不同深度。来自罗斯海的难以捉摸的 P. antarctica 在威德尔海和 Waegelea gen.n 中被发现。是为了放置这个物种而设立的。系统发育和形态学数据都支持 Antarctophilinidae fam.n 的直立。包括南大洋描述的大多数菲利诺亚科物种。南极水域中仅发现两种蜥蜴科物种：Spiraphiline Bathyalis gen.等 sp.n.来自威德尔海深海和 S. kerguelensis comm.n。来自凯尔盖朗群岛。根据为所有描述的物种提供的新数据和本文提出的系统发育框架，我们简要讨论了南极 philinoid 蜗牛的多样化和生物地理模式。总体而言，嗜南极物种似乎具有有限且完全不重叠的分布，表明异域物种形成可能与地理或测深隔离有关。
Since its introduction, the genus Philine has epitomized numerous mollusc snails with strong morphological convergence. Recently, a molecular analysis including a wide taxon sampling split this group into four non‐sister families. Although they are especially diverse in cold and deep waters, no comprehensive studies are available for the Antarctic counterparts. Here, our morpho‐anatomical and molecular data suggest major changes in the systematics of the group. From the eight known species, two are synonymized, Antarctophiline amoena with A. alata, and A. gouldi with A. gibba, and two are transferred to the genus Antarctophiline, namely A. apertissima comb.n. and A. falklandica comb.n. Two new species are described, A. easmithi sp.n. and A. amundseni sp.n. from different depths in the eastern Weddell Sea. The elusive P. antarctica from the Ross Sea was found in the Weddell Sea and Waegelea gen.n. is erected to place this species. Both phylogenetic and morphological data support the erection of Antarctophilinidae fam.n. to embrace most of the Philinoidea species described in the Southern Ocean. Only two species of Philinidae are found in Antarctic waters, Spiraphiline bathyalis gen. et sp.n. from bathyal depths in the Weddell Sea and S. kerguelensis comb.n. from the Kerguelen Islands. In light of the new data provided for all described species and the phylogenetic framework proposed herein, we briefly discuss the diversification and biogeographical patterns of Antarctic philinoid snails. Overall, antarctophilinid species seem to have restricted and grossly nonoverlapping distributions suggesting allopatric speciation connected possibly to geographical or bathymetric isolation.
影响因子：
14.9
作者：
Altschul, SF;Madden, TL;Lipman, DJ
通讯作者：
Lipman, DJ
影响因子：
1.7
作者：
Schueller, Myriam
通讯作者：
Schueller, Myriam