A review of Palaemonella (Decapoda: Caridea: Palaemonidae), with clarification of the taxonomic status of Cuapetes americanus, Eupontonia and Vir

IF 1.8 2区生物学 Q3 EVOLUTIONARY BIOLOGY

Invertebrate Systematics Pub Date : 2024-04-29 DOI:10.1071/is23055

Pavlína Frolová, Eva van der Veer, Charles H. J. M. Fransen, Zdenek Duriš

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Abstract

The pantropical genus Palaemonella Dana, 1852 (Caridea: Palaemonidae) currently includes 27 species of free-living and symbiotic marine shrimps. The monophyly of Palaemonella with respect to several closely related genera, however, has been questioned by recent analyses. We tested the monophyly of Palaemonella based on multigene phylogenetic analysis and the genus was revealed to be a paraphyletic assemblage by inclusion of species of the genera Eupontonia Bruce, 1971 and Vir Holthuis, 1952, and two genetic lineages of the western Atlantic Cuapetes americanus (Kingsley, 1878). We recognise one of the latter lineages as the previously described Periclimenes rhizophorae Lebour, 1949. Eupontonia and Vir are synonymised with Palaemonella. We also transfer Cuapetes americanus and Periclimenes rhizophorae to Palaemonella. Species previously assigned to Vir were revised; V. colemani Bruce, 2003, V. orientalis (Dana, 1852), V. philippinensis Bruce & Svoboda, 1984 and V. smiti Fransen & Holthuis, 2007 are regarded as valid species of Palaemonella; Vir longidactylus Marin, 2008 is synonymised with P. smiti; and the status of V. euphyllius Marin & Anker, 2005 remains unresolved. Palaemonella is currently regarded as a taxon with variable states of two main diagnostic characters, i.e. the plesiomorphic mandibular palp (fully reduced in P. americana) and the hepatic tooth (fully reduced in former species of Vir and Eupontonia – evidently due to symbiotic modes of life).

ZooBank: urn:lsid:zoobank.org:pub:7EEBC655-7EDE-4E46-BCB2-2A3BA16ED7DD

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对 Palaemonella (Decapoda: Caridea: Palaemonidae) 的综述，以及对 Cuapetes americanus、Eupontonia 和 Vir 分类学地位的澄清

泛热带海虾属（Palaemonella Dana，1852）（Caraidea：Palaemonidae）目前包括 27 种自由生活和共生的海虾。然而，最近的分析对 Palaemonella 与几个密切相关的属之间的单系关系提出了质疑。我们根据多基因系统发育分析检验了Palaemonella的单系性，发现该属是一个旁系集合体，包括Eupontonia Bruce, 1971和Vir Holthuis, 1952属的物种，以及西大西洋Cuapetes americanus (Kingsley, 1878)的两个遗传系。我们认为后一系中的一种是之前描述过的 Periclimenes rhizophorae Lebour, 1949。Eupontonia和Vir与Palaemonella同名。我们还将 Cuapetes americanus 和 Periclimenes rhizophorae 划归 Palaemonella。之前归属于 Vir 的物种已被修订；V. colemani Bruce, 2003、V. orientalis (Dana, 1852)、V. philippinensis Bruce & Svoboda, 1984 和 V. smiti Fransen & Holthuis, 2007 被视为 Palaemonella 的有效种；Vir longidactylus Marin, 2008 与 P. smiti 同名；V. euphyllius Marin & Anker, 2005 的地位仍未确定。Palaemonella 目前被认为是两个主要诊断特征状态可变的类群，即多形性下颌颚（在 P. americana 中完全退化）和肝齿（在 Vir 和 Eupontonia 的前种中完全退化 - 显然是由于共生的生活模式）。ZooBank: urn:lsid:zoobank.org:pub:7EEBC655-7EDE-4E46-BCB2-2A3BA16ED7DD

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来源期刊

Invertebrate Systematics 生物-动物学

CiteScore

4.30

自引率

9.10%

发文量

审稿时长

>12 weeks

期刊介绍： Invertebrate Systematics (formerly known as Invertebrate Taxonomy) is an international journal publishing original and significant contributions on the systematics, phylogeny and biogeography of all invertebrate taxa. Articles in the journal provide comprehensive treatments of clearly defined taxonomic groups, often emphasising their biodiversity patterns and/or biological aspects. The journal also includes contributions on the systematics of selected species that are of particular conservation, economic, medical or veterinary importance. Invertebrate Systematics is a vital resource globally for scientists, students, conservation biologists, environmental consultants and government policy advisors who are interested in terrestrial, freshwater and marine systems. Invertebrate Systematics is published with the endorsement of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Australian Academy of Science.