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Sunday, August 3rd, 2025
| Time | Event | ||||
| 8:58a | [Botany • 2025] Aglaia bracteolata (Rubiaceae) • A New Species for Thailand
Abstract A species of Meliaceae, Aglaia bracteolata is newly added to the flora of Thailand. It was first recognized in Suan Hin Pha Ngam Forest Park, Loei Province, and is described and illustrated here. This species is found on the limestone hill, characterized by the presence of Cycas petraea and Dracaena cambodiana. It is also found in Phayao, Lampang and Kanchanaburi Provinces. Keywords: Flora of Thailand, limestone, dendritic hairs, bracteoles
Aglaia bracteolata Pannell, sp. nov.  Caroline M. Pannell and Pachok Puudjaa. 2025. Aglaia bracteolata (Meliaceae), A New Species for Thailand. Thai Forest Bulletin (Botany). 53(2), 58–62. DOI: doi.org/10.20531/tfb.2025.53.2.07 [2025-07-24] | ||||
| 9:06a | [Ichthyology • 2025] Opsariichthys jishuiensis (Cypriniformes: Xenocyprididae) • A New Species from Yellow River Basin, China
Abstract In May 2023, a new species of the genus Opsariichthys, O. jishuiensis sp. nov., was found from the Dayu River (Jiyuan City) and Dawen River (Jinan City) in the Yellow River Basin. The result of morphological comparison revealed that O. jishuiensis sp. nov. can be distinguished from the congeners by the lateral edge of the oral fissure straight, absence of anterior notch on upper lip, extending of maxillary never to the vertical of anterior margin of orbit, extending of pectoral fin far beyond the origin of ventral fin, 43-47 lateral-line scales, and scales below lateral-line 3. O. jishuiensis sp. nov. is similar to O. evolans and O. macrolepis, except the significant differences in the caudal peduncle length covers 10.1%-17.0% of standard length (O. evolans: 17.8%-21.6%, O. macrolepis: 16.9%-24.2%), lower jaw with 2 rows of moderate tubercles well separated (O. evolans: 1 row), and lower pharyngeal teeth 3 rows (O. macrolepis: 2 rows). The phylogenetic tree constructed by the mitochondrial cyt b gene showed that O. jishuiensis sp. nov. was a monophyletic group. K2P genetic distance between O. jishuiensis sp. nov. and its congeners ranged from 0.079 to 0.118, reaching the level of interspecific differentiation. Keywords: Opsariichthys; new species; Yellow River; cyt b gene
ZHAO Liming and XU Xiaojun. 2025. Opsariichthys jishuiensis sp. nov. (Cypriniformes: Xenocyprididae), A New Species from Yellow River Basin. Sichuan Journal of Zoology. 44(4); 447-456. DOI: 10.11984/j.issn.1000-7083.20240239 [28 July 2025] | ||||
| 2:44p | [Paleontology • 2024] Eoactinotocarcinus n. gen. & Tumulosternum ortegai n. sp. • New Spider Crabs (Brachyura: Majoidea) from the early Eocene of Spain with A Reassignment of the Species “Periacanthus” tetracornis
Abstract Spider crabs (superfamily Majoidea Samouelle, 1819) represent a highly diverse group within Eubrachyura de Saint Laurent, 1980. This study re-examines the species “Periacanthus” tetracornis Ferratges, Ortega Fernández, Moreno and Maza, 2014 (Roda Formation, lower Eocene of Spain) which was previously consider as a member of Epialtidae MacLeay, 1838 and it is included as a new genus of majoid crabs, Eoactinotocarcinu n. gen. Additionally, Tumulosternum ortegai n. sp. is described from the same geological unit expanding the distribution of this genus to the southern Pyrenees. These taxa were found in siliciclastic facies co-occurring with a diverse assemblage of decapod crustaceans and other invertebrates. These facies are interpreted as deposited in a prodelta environment supporting the idea of such environments as highly diversified areas of decapods during the Eocene. These new taxa represent the earliest known record of the Subfamily Actinotocarcininae Jenkins, 1974 and the genus Tumulosternum respectively. Keywords: Malacostraca, Decapoda, benthonic, taxonomy, Ypresian  Tumulosternum ortegai Eoactinotocarcinus tetracornis Fernando Ari Ferratges. 2024. New Spider Crabs (Brachyura, Majoidea) from the early Eocene of Spain with A Reassignment of the Species “Periacanthus” tetracornis. Geologica Acta. 22.12, 1-13, I-II. Un nuevo género y una nueva especie de cangrejos araña en el Pirineo Aragonés | ||||
| 2:52p | [Botany • 2025] Zeuxine yonzoneana (Orchidaceae: Spiranthoideae: Cranichideae: Goodyerinae) • A New Species from India
Abstract Zeuxine yonzoneana, a new species of orchid from India, is described and illustrated. The new species is allied to Zeuxine clandestina Blume. But differs in having leaves during anthesis, ovate-oblong to awl-shaped lateral sepals; lip deeply and broadly bilobed, and serrated epichile margins of the later. The new species also shows variation in flowering period, i.e. September–October for the new species, whereas February–April for Zeuxine clandestina. Colour photographs and line drawing are provided for the taxonomical recognition of the new species. New Discovery, Terrestrial Orchid Taxon, Eastern Himalaya, India, Monocots   Zeuxine yonzoneana Rajendra Yonzone sp. nov. Rajendra YONZONE. 2025. Zeuxine yonzoneana sp. nov. (Orchidaceae: Spiranthoideae: Cranichideae: Goodyerinae): A New Species from India. Phytotaxa. 712(2); 186-192. DOI: doi.org/10.11646/phytotaxa.712.2.8 [2025-07-30]  |
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