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Resurrection and neotype designation of Pilumnus spinulosus Kessler, 1861 (Crustacea: Decapoda)
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ABSTRACT. The scientific name Pilumnus spinulosus Kessler, 1861 is resurrected for the representatives of the brachyuran genus Pilumnus Leach, 1816 (Decapoda: Brachyura: Pilumnidae), occurring along the northern coastal line of the Black Sea. This species has been mistakenly identified as P. hirtellus (Linnaeus, 1761) and recently, based on DNA data, referred to as P. aestuarii Nardo, 1869. Furthermore, a neotype of P. spinulosus Kessler, 1861 is designated as the original material is presently considered as lost. P. hirtellus ponticus Czerniavsky, 1868, P. aestuarii Nardo, 1869, P. hirtellus intermedia Czerniavsky, 1884 are considered as junior synonyms of P. spinulosus Kessler, 1861. РЕЗЮМЕ. Научное название Pilumnus spinulosus Kessler, 1861 восстановлено для представителей рода Pilumnus Leach, 1816 (Decapoda: Brachyura: Pilumnidae), встречающегося вдоль северной бере- говой линии Черного моря. Ранее этот вид был ошибочно идентифицирован как P. hirtellus (Linnaeus, 1761), а позднее, на основании данных ДНК, отнесён к P. aestuarii Nardo, 1869. Видовые назва- ния P. hirtellus ponticus Czerniavsky, 1868, P. aestuarii Nardo, 1869, P. hirtellus intermedia Czerniavsky, 1884 рассматриваются как младшие синонимы P. spinulosus Kessler, 1861. How to cite this article: Marin I.N., d’Udekem d’Acoz C. 2019. Resurrection and neotype designation of Pilumnus spinulosus Kessler, 1861 (Crustacea: Decapoda) // Arthropoda Selecta. Vol.28. No.4. P.545– 548. doi: 10.15298/arthsel. 28.4.06
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RBINS Staff Publications 2019
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First record of the globally invasive crab, Charybdis hellerii (A. Milne-Edwards, 1867), in Benin, with notes on its taxonomy (Crustacea, Decapoda, Brachyura, Portunidae)
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The Indo-Pacific portunid, Charybdis hellerii (A. Milne-Edwards, 1867), is a crab species native to the Indian and Western Pacific Oceans and has previously colonized the Eastern Mediterranean and the Western Atlantic. It is now recorded in the Eastern Atlantic, on the coast of Benin, where a thriving population has established. This invasive and widely distributed species exhibits morphological variations within and between populations, which are discussed in detail. Its current distribution is presented, and its future expansion along the West African coast and future impact on coastal ecosystems and local fisheries are the object of tentative forecasts. Illustrations of sexually mature specimens from different sizes and regions are presented, and their allometric, individual and geographical variations are discussed. A new synonymy and a new account on the taxonomy and the biology of the species are presented. Illustrations of the lectotype and the paralectotype of C. hellerii are also provided for the first time. Charybdis spinifera (Miers, 1884), C. merguiensis (De Man, 1887) and C. vannamei Ward, 1941 are here treated as subjective junior synonyms of C. hellerii. The holotype of C. spinifera and two syntypes of C. merguiensis are illustrated. Key words: alien species, Eastern Atlantic, West Africa, systematics, type material https://doi.org/10.11646/zootaxa.4576.2.1 http://zoobank.org/urn:lsid:zoobank.org:pub:C21B66E0-E7BF-4E82-9EBE-24F7CDEFC8A5
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Description of two additional new Sarmydus species from China (5th contribution to the study of genus Sarmydus Pascoe, 1867) (Coleoptera, Cerambycidae, Prioninae)
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RBINS Staff Publications 2017
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Description de nouvelles espèces d'Erioderus Thomson, 1861 (Coleoptera, Cerambycidae, Prioninae, Macrotomini)
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Des Taxons d'Anthiini décrits par Pierre Basilewsky dans un manuscrit traitant des Anthiini africains, sans titre (Coleoptera, Carabidae, Anthiinae, Anthiini)
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Cryptic diversity and speciation in endemic Cytherissa (Ostracoda, Crustacea) from Lake Baikal
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Lake Baikal (Siberia) is the most ancient and deepest of all ancient lakes on Earth. It holds a (mostly endemic) diversity of thousands of animal species, including a speciose radiation of ostracods of the genus Cytherissa. Applying molecular tools to this crustacean group reveals that several morphological species are actually species clusters. Based on combined 16S and 28S DNA sequence data from thirteen classic Cytherissa species and one subspecies sensu Mazepova (1990), we recognize 26 different genetic Cytherissa species, 18 with morphological variation and eight truly cryptic species. These results suggest that the actual specific diversity of Cytherissa in Lake Baikal might easily be double of what is presently known. Baikalian endemic species most likely live in the cradle in which they originated and this opens perspectives to infer modes of speciation. Our current distribution data of Cytherissa species provide first indications for both geographic (lakes basins and shores) and ecological (sediment type, water depth) separation. Our present data thus provide the first steps towards future, rigorous testing of focussed hypotheses on the causality of speciation through either allopatric isolation or parapatric ecological clines.
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RBINS Staff Publications 2017
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Biodiversity of ostracod communities (Crustacea, Ostracoda) in a tropical floodplain
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Neotropical floodplains harbour both floating and rooted plants and are associated with rich ostracod communities. After dry seasons, flooding causes recruitment in 2 ways: floods bring in allochthonous macrophytes with associated pleuston communities, and these rising water levels rehydrate plants and attached (ostracod) eggs that dried at the onset of the dry season. We analysed the ostracods communities in the Araguaia River floodplain (Brazil) during 2 hydrological periods (dry and rainy) and evaluated the species distribution in relation to abiotic and biotic factors. We compared the ostracod fauna of 6 lakes in the dry and rainy period and 17 lakes in the rainy period. We tested the hypothesis that the highest values of ostracod community attributes (richness, density, and evenness) occur in the rainy season owing to the influx of allochthonous individuals and the rehydration of the dried autochthonous macrophytes. We indeed observed the highest richness and diversity of ostracods in the rainy season; the homogenizing effect of the flood pulse at the onset of the rainy season caused a more homogeneous fauna (lower beta diversity) during that hydrological period. The distribution of species showed a significant effect of both abiotic factors (local) and hydrological period (regional).
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RBINS Staff Publications 2017
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Images are not and should not ever be type specimens: a rebuttal to Garraffoni & Freitas
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Note. This original form of this rebuttal was submitted to Science on 3 March 2017 (limited to 300 words as per Science editorial policy) but rejected on 13 March 2017. Herein, we elaborate on our original Science submission in order to more fully address the issue without the length limitations. This rebuttal is followed by the list of the signatories who supported our original submission
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RBINS Staff Publications 2017
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Amphibians and Squamates from the Late Pleistocene of Caverne Marie-Jeanne (Belgium)
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Archaeological sites usually provide important information about the past distribution of the small vertebrate fauna, and by extension about past terrestrial environments and climate in which human activities took place. In this context, Belgium has an interesting location in North-western Europe between the well-studied zooarchaeological record of Germany and England. The Late Pleistocene (Marine Isotope Stages 3 and 2) locality of Caverne Marie-Jeanne (southeast of Belgium, Ardennes region) yielded a large collection of disarticulated bone fragments and numerous plant, mollusk, and archaeological remains. They have been collected during the first field campaign in 1943 and stored in the Quaternary collections of the Royal Belgian Institute of Natural Sciences. A recent revision of the rich micromammal fauna (31 taxa of insectivores, bats, and rodents among 9897 identified specimens, corresponding to a minimum of 4980 individuals) revealed the presence of the steppe lemming and the European pine vole. We present here the revision of the herpetofauna based on the 1970 Jean-Claude Rage’s study and the revision of the “indeterminate” small vertebrate specimens. It is now by far the largest Late Pleistocene collection of the Belgian institute with more than 20,500 recognized bones of amphibians and reptiles and covering the last 60,000 years. The herpetofaunal list now comprises two urodeles (Lissotriton gr. L. vulgaris and Salamandra salamandra), four anurans (Bufo gr. B. bufo-spinosus, Epidalea calamita, Rana temporaria and Rana cf. R. arvalis), three lizards (Lacerta cf. L. agilis, Zootoca vivipara and Anguis gr. A. fragilis) and three snakes (Natrix gr. N. natrix-astreptophora, Coronella austriaca and Vipera berus). This study highlights the first fossil record in Belgium for L. gr. L. vulgaris, R. arvalis, Z. vivipara, N. gr. N. natrix-astretophora and C. austriaca. This assemblage suggests a patchy humid landscape under colder and dryer climatic conditions in comparison with present ones. The study also underlines the importance to carefully reexamine old collections. Grant Information: Grant 2017-SGR-859 (Gov. of Catalonia, AGAUR), CGL2016-80000-P (Spanish Min. of Econ. & Comp.), RYC-2016-19386 (Ramón y Cajal), Synthesys BE-TAF-4385, -5469, -5468, -5708.
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RBINS Staff Publications 2019
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ICES VIEWPOINT: Scrubber discharge water from ships – risks to the marine environment and recom-mendations to reduce impacts
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New global standards on sulphur content in marine fuels have led to an increasing number of ships installing exhaust gas cleaning systems, also known as scrubbers, to reduce air emissions of sulphur oxides. Ships equipped with a scrubber can continue to use heavy fuel oil, resulting in significant discharge of acidified water containing several contaminants, such as heavy metals, persistent organic pollutants (POPs; mainly polycyclic aromatic hydrocarbons), and nitrogen compounds.The simplest and most common type of scrubber system, the open-loop scrubber, directly discharges the contaminated water in to the sea. The use of scrubber systems by ships is an emerging global problem and an additional pressure on the marine environment. The substances found in scrubber discharge water can cause acute effects on marine biota and may have further impacts, through bioaccumulation, acidification, and eutrophication, on the structure and functioning of marine ecosystems.The number of ships with installed scrubber systems is increasing, but legislation on scrubber discharge is lagging, inconsistent between countries, and often insufficient to protect the environment. ICES recommends the use of cleaner low-sulphur fuels, such as marine gas oil, to eliminate scrubber use and associated impacts on the marine environment.Until this is possible, ICES proposes a set of measures to mitigate scrubber impacts
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