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A new monstrilloid copepod species, Monstrilla pseudograndis sp. nov., from coastal waters in the northern South China Sea is described and illustrated. The diagnostic characters …

This study presents the molecular and morphological results from an analysis of water mites collected in southwestern Türkiye. 83 COI barcodes are provided, clustered into 40 BINs…

In this study, we describe a new species belonging to the genus Paucibranchia Molina-Acevedo, 2018 found in the area “La Grande Vasière” on the French Atlantic continental shelf (…

Diagnostic characters distinguishing the gudgeons Belobranchus belobranchus and Belobranchus segura were reassessed and found to be inconsistent, making it difficult to accurately…

The species of the ant genus Nesomyrmex inhabiting the tropical dry forest (TDF) of Colombia are reviewed. Three new species of this genus, Nesomyrmex iku sp. nov., Nesomyrmex kon…

Three new species of the genus Solenysa Simon, 1894 are recorded and described from Western Japan, all based on both sexes. Of these, two species are endemic to the Ryukyu Archipe…

A new species of black coral, Stauropathes monopinnata sp. nov., represented by two specimens collected 738 m and 1604 m deep off Puerto Rico and Hawaii, respectively, is recogniz…

The genus Liocanthydrus Guignot, 1957 is formally reported from Argentina since its first mention in an unpublished work more than 40 years ago. A single species, L. nanops Baca e…

Four synallactid specimens were collected during four deep-water benthic fauna surveys (2013–2018) conducted at three seamounts (‘Jiaolong’, ‘Y3’, and ‘M4’) and the Ganquan Platea…

Two new extremely elongate snake eel of the genus Ophichthus are described based on specimens collected from Vietnamese waters. Ophichthus cuulongensis Vo, Hibino & Ho, sp. nov. i…

We present for the first time the complete mitochondrial genomes (mt genomes) of the earthworms Aporrectodea caliginosa and Ap. trapezoides (Clitellata, Megadrili) collected in Hu…

The Hyloscirtus bogotensis group contains 17 species of treefrogs from the tropical Andes and Central America. A taxonomic review of the Amazonian clades of this group is presente…

The genus Xystodesmus Cook, 1895 (most closely related to Riukiaria Attems, 1938) is retained as a taxon of xystodesmine millipedes with a relatively small body length (25–35 mm),…

Moth diversity on Mount Cameroon, a critical biodiversity hotspot in the Afrotropics, remains understudied despite the region’s rich and unique ecosystems. In this study, 34 speci…

The subfamily Scydmaeninae (Coleoptera: Staphylinidae) is reported from Shanghai, China for the first time. Three species of the genus Euconnus Thomson were recognized: E. (s. str…

Three new species of the genus Diestramima are described from China: Diestramima ligula Zhu & Shi, sp. nov., Diestramima longzhouensis Zhu & Shi, sp. nov., and Diestramima napoens…

Two new species of Viscosia from the intertidal zone along the Yellow Sea are described and illustrated. Viscosia media sp. nov. is characterized by a heavily cuticularized and re…

The millipede genus Kronopolites Attems, 1914 was originally described by monotypy with Strongylosoma swinhoei Pocock, 1895 as the type species, which was based on a single female…

The apple snail Pila pesmei is an economically valuable freshwater snail in mainland Southeast Asia whose populations have recently dramatically declined. Although conservation co…

The abyssal plains of the Clarion-Clipperton Zone (CCZ) are famous for their fields of polymetallic nodules, which are inhabited by benthic invertebrates. Ten specimens from the I…

The deep-sea cardinalfish Epigonus glossodontus Gon, 1985, previously known only from the Hawaiian Islands, was observed using remotely operated vehicles (ROVs) on steep seafloors…

The legacy of the 19th-century naturalist Rudolph Philippi to the taxonomy of Chilean amphibians has been controversial since most of the species he described in 1902 have been qu…

This paper presents an investigation of material collected during four intensive collecting trips of land snails in French Guiana from 1995 to 2020 and deposited in the French Nat…

Four new species of Pseudopoda Jäger, 2000 (Araneae, Sparassidae) are described based on material collected from China and Vietnam: P. campylotropa Zhang, Chen, Liu, Jäger & Hu, s…

A new species of Ovophis is described from Yuanyang Guanyinshan Provincial Nature Reserve in southern Yunnan Province, China. The new species can be distinguished from congeneric …

The species of the ant genus Brachyponera Emery, 1900 are reviewed based on the morphological characters of the worker caste. Brachyponera tianzun (Terayama, 2009) is transferred …

This study highlights the diversity of land snails in Penang Hill, a non-limestone hill in Peninsular Malaysia. A systematic survey of land snails in Penang Hill was conducted, in…

New records are provided of the family Agromyzidae (leaf-miner flies) from Morocco. Thirty agromyzid species are newly recorded, seven of these in Agromyzinae: Agromyza (Agromyza …

Deep-sea sponges create complex biogenic structures and attract a wide array of deep-sea organisms, including symbionts. In this study, we describe Eunice siphoninsidiator sp. nov…

The genus Topiris Walker, 1863 is revised. This genus, previously neglected or deemed unrecognisable, comprised only Walker’s damaged and misrepaired type specimen of Topiris cand…

A new genus, Trematirunella gen. nov. (Mesostigmata: Uropodina: Trematuridae), with Trematirunella seychellia sp. nov. as its type species, is described, based on a female, males,…

Two new species of the genus Malaxa Melichar, 1914 from Southwest China, M. chongzuoensis Lv & Chen, sp. nov. from Guangxi Zhuang Autonomous Region, and M. longispina Lv & Chen, s…

Two new species of oribatid mites of the subgenus Indoribates (Haplozetes) (Oribatida, Haplozetidae) are described based on adult specimens from Tajikistan. Indoribates (Haplozete…

Four species of the genus Trilacuna Tong & Li, 2007 from Xizang, China are recognized, including three new species and one newly recorded species: T. bangla Grismado & Ramírez, 20…

Two new species of the purse-web spider genus Atypus Latreille, 1804, collected from China, are diagnosed and described based on the genital morphology of both sexes: A. dawei sp.…

Nidirana okinavana (Boettger, 1895) is a small-sized ranid species belonging to the East Asian genus Nidirana Dubois, 1992. Previous studies have indicated that this species was e…

The genera and subgenera of the subtribe Aspilotina are reviewed. A new illustrated key to all accepted supraspecies taxa is provided. Grandilota Fischer, 2002, stat. nov. is prop…

Based on surveys of the superfamily Chalcidoidea (Hymenoptera) in the eastern part of Pamir Plateau from 2021 to 2023, 1770 specimens of Encyrtidae belonging to 21 species in 15 g…

Barbodes klapanunggalensis sp. nov. is described on the basis of two specimens collected from the subterranean cave system of Klapanunggal karst area, Bogor Regency, West Java Pro…

China is one of the most biodiverse countries worldwide, with a variety of landforms and climatic conditions. However, the diversity and biogeographic distribution of bdelloid rot…

Centipedes collected during Royal Society surveys of the arthropod fauna of the Aldabra Atoll in 1968–1975 are identified, described, and illustrated to provide the first checklis…

Corrigenda to the abovementioned paper are given, as well as new data on Aphodius (Liothorax) felix Angus et al., 2024 and A. (L.) bellumgerens Angus et al., 2024

The species of Ninomimus Lindberg, 1934 are reviewed. A new species, Ninomimus fuscus sp. nov., is described from Hunan Province, China. It differs from its two congeners in its s…

Three new species of the ant-loving beetle tribe Batrisini, Reitter, 1882 (Pselaphinae: Batrisitae) from southeast Xizang, China are described: Arthromelodes lhunzensis sp. nov., …

The noctuid genus Supralathosea Barnes & Benjamin (Noctuidae, Oncocnemidinae) is revised to include three species for the United States of America, Supralathosea baboquivariensis …

A new species of the genus Protocobitis is described based on morphological comparisons and molecular analyses from specimens of a subterranean tributary of the Hongshui River, Li…

We describe herein a previously unknown species of bark beetle, Phloeosinus metasequoiae Ning, sp. nov., which was discovered in the Xingdoushan National Nature Reserve, Hubei Pro…

Cladocera fulvipennis Jacoby is transferred to Afrotropicaltica gen. nov., here described. The new genus belongs to the group of Afrotropical genera traditionally attributed to th…

The insect genus Carulaspis MacGillivray, associated with Pinidae and Magnoliidae, includes six species: C. juniperi, C. minima, C. visci, C. atlantica, C. taxicola and C. silvest…

The Caspian barbastelle, Barbastella caspica, has spread widely in the Caspian region, Iran, and Central Asia; however, there is no evidence of its occurrence in China so far. Dur…