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Two new planktonic ostracods of the genus Proceroecia Kock, 1992, P. hwanghaensis sp. nov. and P. joseondonghaensis sp. nov., collected from neritic waters off the south coast of South Korea are described. Morphologically, they are similar to P. microprocera (Angel, 1971), the type species of the genus, but show several clear morphological differences, most prominent being the shape of the male endopodite on the second antenna and the presence of a sensilla on the coxale of the fifth limb. The two new species have subtle differences, such as the length of the frontal organ, number of spines on the comb-like e-seta on the first antenna in males, number of spinules on the b-seta on the second antenna in females, etc. Sequences derived from partial mitochondrial cytochrome oxidase c subunit 1 (mtCOI) for these novel species have been compared with sequences available for other Proceroecia species on GenBank, including P. microprocera. These comparisons suggest that both new species are distinct taxa. They also indicate that one set of sequences on GeneBank previously attributed to P. microprocera and derived from material collected from Chinese waters, belong to P. hwanghaensis, and that another set of sequences of an unidentified Proceroecia species from the South China Sea can be attributable to P. joseondonghaensis. Hence, these new species occur widely in the neritic waters of East Asia. The present study increases the number of the known Proceroecia species to nine, and the numbers of halocyprid ostracod species recorded from Korean waters to six.The subfamily Platycraninae Brunner v. Wattenwyl, 1893 is polyphyletic in the traditional treatment. None of the genera attributed to the subfamily is closely related to the type-genus Platycrana Gray, 1835, which has already been suggested by morphological studies. The main key feature of Platycraninae traditionally used to characterize the subfamily, the remarkably large head and strongly enlarged genae ("cheeks"), is not true for Platycrana. Consequently, all other genera, the true "Palm Stick Insects" need to be removed from Platycraninae and are here accommodated in Megacraniinae subfam. nov.. Megacrania Kaup, 1871 is chosen as the type-genus of this new subfamily, because the name very well describes the main characteristic of this clade. Previous molecular studies have shown Megacraniinae subfam. nov. to be a member of the Old World family Phasmatidae s. str. (= Lanceocercata Bradler, 2001), which is characterized by the enlarged, laterally flattened and foliaceous or lanceolate cerci and by the male aanini and Stephanacridini. Netarsudil Lists of genera are provided for the three taxa. Three genera are removed from Platycraninae and Megacraniinae subfam. nov. The Australian Echetlus Stål, 1875 is transferred to Phasmatinae Acanthomimini and Redtenbacherus Özdikmen Darilmaz, 2008 and Elicius Günther, 1935 are transferred to Lonchodidae Necrosciinae. The male of Megacrania spina Hsiung, 2007 as well as the eggs of Megacrania brocki Hsiung, 2002, Erastus apalamnus Rehn, 1904, Ophicrania apterus (Redtenbacher, 1908), Ophicrania nigroplagiatus (Redtenbacher, 1908), Platycrana viridana (Olivier, 1792) and Macrophasma lyratus (Redtenbacher, 1908) are illustrated for the first time. Xenomaches moderata (Kirby, 1884) from the island of Ambon is synonymised with Platycrana viridana (Olivier, 1792) (syn. nov.).A new blind species, Folsomides cariocus sp. nov., which belongs to the F. parvulus group sensu Fjellberg (1993), is described and illustrated based on material collected in compacted clay soil covered by undergrowth and no litter around the bee nest holes at the Botanical Garden, located in Rio de Janeiro City. The new species is very similar to F. parvulus Stach, 1922 but differs mainly due to the absence of eyes. Synonymies based on ocular variations and pigmented spots were discussed and a table for the group parvulus species is present.Sixteen species of Latrunculiidae Topsent, 1922, belonging to the genera Latrunculia du Bocage, 1869, Strongylodesma Lévi, 1969, Cyclacanthia Samaai Kelly, 2004, Samaai Kelly, 2002, are currently known from the temperate waters of South Africa. Extensive new sponge collections from the Amathole region of South Africa revealed the existence of three new species of Tsitsikamma, T. amatholensis sp. nov., T. madiba sp. nov., and T. beukesi sp. nov., and a new species of the endemic South African genus Cyclacanthia, C. rethahofmeyri sp. nov. With the recent addition of two new species of Tsitsikamma from Algoa Bay and Tsitsikamma National Park (T. michaeli Parker-Nance, 2019; T. nguni Parker-Nance, 2019) the total number of known South African Latrunculiidae is now 20 species in four genera. Here we propose two new subgenera of Tsitsikamma, Tsitsikamma Samaai Kelly, 2002 and Clavicaulis subgen. nov., based on the morphological groups "favus" and "pedunculata" hypothesized by Parker-Nance et al. (2019). Species in the nominotypical subgenus Tsitsikamma, containing the type species, are thick encrusting to hemispherical with a rigid honeycombed choanosome, while species in the new subgenus Clavicaulis subgen. nov. have a purse or sac-like morphology with little choanosomal structure. Despite the obvious species-level differences in morphology, multivariate analysis based on spicule measurements (anisostyle length, discorhabd length, shaft and whorl length) was not able to distinguish between the proposed Tsitsikamma species, but separated known species T. favus Samaai Kelly, 2002, T. pedunculata Samaai Kelly, 2003, and T. scurra Samaai Kelly, 2003, from each other. Similarly, DNA barcoding of the mitochondrial COI and the nuclear ITS of Tsitsikamma specimens failed to clearly differentiate between species, but was able to differentiate sister taxon relationships within the Latrunculiidae.Current information on soft-bottom benthic amphipod species of the south coasts of Cyprus is scarce. In the summer of 2013, a research survey was carried out, targeting the Vasiliko Bay and the nearby coastal area which is influenced by multiple human-induced stressors. Analysis of 126 samples revealed the presence of 2,122 individual amphipods (Amphilochidea and Senticaudata) belonging to 25 families and 52 species. Twenty-four species are new records for Cyprus increasing the number of amphipods to 141 species. In Vasiliko Bay, two amphipod species presented the highest abundances and were found to be constant (Microdeutopus periergos, Perioculodes longimanus), while seven are common species (Ampelisca brevicornis, Ampelisca typica, Apherusa chiereghinii, Dexamine spinosa, Harpinia crenulata, Leptocheirus pectinatus, Leucothoe incisa) and the remaining 43 species are rare. The highest amphipod total abundances and number of species were recorded in stations with dense Posidonia oceanica meadows and aquaculture units in the vicinity.

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