ZooKeys最新文献

Two new species of the genus Psen Latreille, 1796, namely Psenfronistriatus sp. nov. and Psenscabrosus sp. nov. are described and illustrated from China. A key to the Chinese species of Psen is also provided.

This study describes Morimotobathynellakoreana sp. nov., the first new species of Bathynellidae family reported in East Asia since 2000, and it presents the first molecular analysis using CO1 and 18S gene sequences. Morphological analysis reveals that the new species and previously known Morimotobathynella species uniquely share key characteristics in the male and female thoracopods VIII. However, the presence or absence of the median seta on the antenna exopod, along with the length differences between the four spines in the furca, distinguish the new species from M.miurai, 2000. A molecular phylogenetic analysis indicates that the new species has a relatively close relationship to species from the genus Altainella in Mongolia and Russia.

Four Yunohamella species are reported from Hubei Province, China, including two new species: Y.gutenbergi R. Zhong, J. Liu & Hu, sp. nov. (♂) and Y.mohorovicici R. Zhong, J. Liu & Hu, sp. nov. (♂). Yunohamellajiugongensis (Liu & Zhong, 2023), comb. nov. is transferred from the genus Cryptachaea Archer, 1946, and Y.lyrica (Walckenaer, 1841) is newly recorded from Hubei Province and is considered as a senior synonym of Platnickinamneon (Bösenberg & Strand, 1906).

The Great Lakes spiny reed frog (Afrixaluslacustris) was recently described from transitional (submontane) forests at mid-elevations of the Albertine Rift mountains in the eastern Congolian region. Previously, because of its similarity, it had been understood to represent eastern populations of the unrelated A.laevis, which is known mainly from Cameroon. Based on DNA barcoding, we document the westward extension of the known range of A.lacustris within lowland rainforests in the Northeastern and Central Congolian Lowland Forests. One sample was represented by a larva found in a clutch in a folded leaf, a typical oviposition type for most Afrixalus species, contrary to oviposition on an unfolded leaf surface in the similar A.laevis and closely related A.dorsimaculatus and A.uluguruensis. Comparison of the advertisement call of A.lacustris from Salonga National Park, Democratic Republic of the Congo, indicates similarity to its sister species from montane areas of the Albertine Rift, the ghost spiny reed frog (A.phantasma). Phylogeographic analysis suggests that A.phantasma and A.lacustris speciated allopatrically during the Early Pleistocene, with the former having refugia in montane forests and the latter in transitional and also lowland forests. The lowland populations of A.lacustris represent distinct evolutionary lineages, which diversified probably in isolated forest refugia during the Middle Pleistocene.

Megamelus is a genus of Delphacidae widely distributed and mostly associated with plants in freshwater environments. Despite various taxonomic revisions and thorough research, the delimitation of the genus, its diversity, and its evolutionary history need to be further explored. Moreover, features originally considered distinctive of the genus exhibit variation and should be reassessed. Here, the genus Megamelus in South America was examined, describing two new species, Megamelusdelticus Remes Lenicov & Mariani, sp. nov. and Megamelusserpentinus Mariani & Remes Lenicov, sp. nov., and providing information on their host plants and geographical distribution. The distribution and host range knowledge of Megamelusiphigeniae and Megamelustimehri are also expanded, the male brachypter of M.timehri described for the first time, and a key to distinguish the species, based on male and female genitalia and their external morphology, is provided. Moreover, the first phylogenetic analysis of the genus is presented, based on the mitochondrial COI gene to clarify the interspecific relationships among its members. Our combined findings support the monophyly of the genus and refine diagnostic features, including the importance of the pygofer's lobed appearance. This comprehensive revision highlights the need for further multidisciplinary approaches to fully understand the evolutionary history of Megamelus and its interactions with host plants and environments.

Prawns of the genus Macrobrachium represent a highly diverse group of high commercial value worldwide. Eight Macrobrachium species have been reported from the Peruvian Pacific slope, but their phylogenetic relationships are still unknown. To investigate the systematics of Macrobrachium species from Peru, morphological identification and molecular data from nucleotide sequences of three genes were used: cytochrome c oxidase subunit I, 16S rRNA, and 28S rRNA. Based on morphological taxonomy, six species were successfully identified: M.americanum, M.digueti, M.gallus, M.inca, M.panamense, and M.transandicum. However, the phylogenetic inference results supported the species validity of only the first five species; all prawn individuals that were morphologically identified as M.transandicum were recovered within the M.digueti group, showing interspecific genetic distances near zero, suggesting that both species belong to the same species-level lineage, which may represent in the "olfersii species complex". Our analyses also corroborated the genetic proximity of sibling species M.inca-M.americanum and M.gallus-M.panamense, and the monophyletic origin of Macrobrachium species from Peruvian populations. This study represents the first comprehensive phylogenetic analyses of Macrobrachium species from Peru, and contributes the first publicly available DNA sequences for M.inca and M.gallus, as well as the first sequences of M.americanum, M.panamense, M.digueti, and M.transandicum collected from Peruvian rivers.

Taxonomic notes on the genus Spinosodus Breuning & de Jong, 1941 are presented. The genus Bulbolmotega Breuning, 1966 is synonymized with Spinosodus, and Bulbolmotegasumatrensis Breuning, 1966 is recognized as a junior synonym of Spinosodusspinicollis Breuning & de Jong, 1941. Additionally, Spinosodus is redescribed, and S.rufomaculatus Breuning, 1973 is formally reported from China, Vietnam, Thailand, and India for the first time.

Herein, we describe a new species of Plectranthias perchlet found at depths of 100-125 meters in mesophotic coral ecosystems of the Maldives in the Indian Ocean. Plectranthiasraki sp. nov. is unique in both morphology and coloration. The following combination of characters distinguishes it from all known congeners: dorsal fin X, 15; anal-fin rays III, 7; pectoral-fin rays 13 | 13 (13 | 12), all unbranched; principal caudal-fin rays 9 + 8; lateral line complete with 30-32 tubed scales; gill rakers 5 + 12; circumpeduncular scales 11-12; and absence of antrorse or retrorse spines on ventral margin of preopercle. Coloration in life consists of a white to light pink body with two indistinct rows of irregularly shaped red-orange to yellow-orange patches along the dorsal two-thirds of the body, a golden-yellow opercle and maxilla, an indistinct yellow stripe on the dorsal fin, two yellow spots near the base of the anal fin, and two irregularly shaped yellow-orange spots located on either side of centermost caudal-fin rays. With this publication, the genus Plectranthias now comprises 67 valid species. This discovery adds to a strong body of research highlighting the novel biodiversity of mesophotic ecosystems, especially in locations like the Indian Ocean, where few prior ichthyological surveys have been conducted.

The continuous growth of the urban population, coupled with habitat loss, has resulted in unanticipated interactions between animals and humans in urban centers. In this study, we investigated the presence of mammals in urban centers through newspaper reports on websites. Specifically, we examined: i) the frequency of photographic records, ii) the temporal trends (2001 to 2021) and spatial trends (Brazilian Federative regions and states) of the records, and iii) the orders, families, and species most frequently reported in urban centers. On the Google platform (http://www.google.com.br), we used combinations of the keywords "mammals in urban centers," "mammals found in the city", and "mammals found in the municipality" to survey mammal records. We excluded repeated news items, sites that experienced technical problems during the search period, and those that did not cover the topic. We compiled a total of 733 websites. The records spanned from 2002 to 2021, with 73% occurring in the last four years. The Southeast, South, and Midwest regions stood out. The animals recorded belonged to 55 mammal species (16 vulnerable and 3 endangered), distributed in 22 families and 10 orders. The data indicate that the majority of mammal sightings in urban areas occur on streets, with some conflictual interactions. This is the first study that utilizes websites for diagnosing the mammal fauna present in urban centers in Brazil. The dataset generated here could aid in understanding the occurrence of mammal species in the urban environment.

A new supergiant species of Bathynomus A. Milne-Edwards, 1879 from Vietnam is described. Bathynomusvaderi sp. nov. is characterised by its wide, rectangular clypeal region with parallel lateral margins, concave distal margin, and narrowly acute apex; the distally narrowing and posteriorly curved coxa of pereopod 7; and the presence of 11 upwardly curved pleotelson spines. The new Bathynomus is the fourth species with upwardly curved pleotelson spines and the second supergiant in the South China Sea. The taxonomy of B.jamesi Kou, Chen & Li, 2017 from the South China Sea is also discussed based on a large series of specimens. Previously reported differences in body form and pleotelson spines, which suggest that there may be two forms or species, are regarded as intraspecific variation for the time being. The contemporary culinary trend and fishing of Bathynomus in Vietnam, which have contributed to this discovery, are also discussed.