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Monday, February 3rd, 2025
| Time | Event | ||||||
| 2:47a | [Ichthyology • 2025] Lost for more than 85 years—Rediscovery of Channa amphibeus (McClelland, 1845) (Labyrinthici: Channidae), the World’s Most elusive Snakehead Species
Abstract The Chel Snakehead or Bora Chung, Channa amphibeus, is a large snakehead species endemic to the Himalayan region of India. Channa amphibeus was last recorded from specimens collected in the years between 1918 and 1933 (Shaw & Shebbeare 1938), leading to speculations that it may have gone extinct. Here, we report the re-discovery of the species after more than 85 years, based on three specimens collected in the year 2024, and additional photographic records. We also provide the first live image of C. amphibeus, along with biometric, and genetic data. Pisces, Chel Snakehead, Bora Chung, Channa barca, potentially extinct, rare    Jayasimhan PRAVEENRAJ, Tejas THACKERAY, Nallathambi MOULITHARAN, Balaji VIJAYAKRISHNAN and Gourab Kumar NANDA. 2025. Lost for more than 85 years—Rediscovery of Channa amphibeus (McClelland, 1845), the World’s Most elusive Snakehead Species (Teleostei, Labyrinthici, Channidae). Zootaxa. 5583(1); 87-100. DOI: doi.org/10.11646/zootaxa.5583.1.4 | ||||||
| 9:28a | [Botany • 2021] Petrocosmea villosa (Gesneriaceae) • A New Species from Shan State, Myanmar
ABSTRACT The new species Petrocosmea villosa D.J.Middleton from Shan State, Myanmar is described. It is most similar to Petrocosmea kerrii Craib, P. crinita (W.T.Wang) Z.J.Qiu and P. heterophylla B.L.Burtt in Petrocosmea sect. Deinanthera but differs particularly in inflorescence structure, inflorescence indumentum and in the long calyx lobes. Keywords. Petrocosmea crinita, Petrocosmea heterophylla, Petrocosmea kerrii, Petrocosmea sect. Deinanthera, Shan State
Petrocosmea villosa D.J.Middleton, sp. nov. Similar to Petrocosmea kerrii and P. crinita (W.T.Wang) Z.J.Qiu in the shape and colour of the corolla but differs from both in having both sessile and petiolate leaves (petiolate only in P. kerrii and P. crinita), longer calyx lobes (11–12 mm long in P. villosa, 1.5–4 mm long in P. kerrii and P. crinita) and more flowers ... Etymology. The specific epithet refers to the dense hair covering on the inflorescence. David John Middleton, Thant Shin and Y. Baba. 2021. A New Species of Petrocosmea (Gesneriaceae) from Myanmar. Gardens’ Bulletin Singapore. 73(2); 457-460. DOI: doi.org/10.26492/gbs73(2).2021-14 | ||||||
| 10:01a | [Botany • 2024] Peliosanthes orthocoronata (Asparagaceae) • A New Species from Southeastern Yunnan, China
Abstract Peliosanthes orthocoronata is described and illustrated as a new species from southern China. The new species is similar to P. griffithii, they can be easily distinguished by horizontal stolons, the perianth lobes, and the staminal corona morphology. Notes on the habitat, conservation status, phenology, and taxonomic relationships with congeners are also provided. androecium, corona, Liliaceae, limestone, taxonomy, Monocots
Peliosanthes orthocoronata H.Z. Feng, sp. nov. Etymology:—The specific epithet refers to the shape of corona; orthocorona is composed of “ortho+corona”,“ortho-” means upright. Li Hong WANG, Ming Hui BI, Hong Bo CHU, Gao Cheng ZHANG and Hui Zhe FENG. 2024. Peliosanthes orthocoronata (Asparagaceae), A New Species from Southeastern Yunnan, China. Phytotaxa. 678(3); 167-175. DOI: doi.org/10.11646/phytotaxa.678.3.2 | ||||||
| 2:47p | [Botany • 2025] Memecylon longipedunculatum (Melastomataceae: Olisbeoideae) • A New Species from Coastal Areas of south central Vietnam
Abstract Memecylon longipedunculatum, a new species of Melastomataceae, is described and illustrated. The species is known to occur in Khanh Hoa and Ninh Thuan provinces in South Central Coast Vietnam, where it is restricted to low dry coastal forests and scrubby vegetation. The description is based on the authors’ original gatherings as well as on the historical collections made a century ago. The new species is distinguishable from most of its congeners by small leaves (1.2–5.7 × 0.7–2.4 cm) with obtuse or sometimes emarginate apices, long peduncles (1–2.7 cm long), and crescent-shaped anther connective with distinct centrally placed gland. Indochina, Myrtales, taxonomy, Olisbeoideae, Eudicots
Memecylon longipedunculatum Tagane, V.S.Dang & Nuraliev, sp. nov. Diagnosis:—Memecylon longipedunculatum is similar to M. chevalieri Guillaumin (1921a: 7, see also Guillaumin 1921b: 936) distributed in Cambodia, Laos and Vietnam by having axillary and terminal inflorescences with relatively long peduncles 1–2.7 cm long (vs. almost 1.5 cm long in M. chevalieri), but distinguished from the latter species by its smaller leaf blades (1.2–5.7 × 0.7–2.4 cm vs. 4–7 × 2–4 cm), longer pedicels (3.3–5.5 mm vs. 2–3 mm long), longer petals (ca. 4 mm vs. 2–3 mm long) with acute (vs. acuminate) apex, and subglobose (vs. ovoid-globose) fruits Etymology:—The species epithet refers to its long peduncles (up to 2.7 cm long in flower and to 5.1 cm long in fruit), one of the remarkable features distinguishing it from most of its congeners in the Indochinese Peninsula. Vernacular name:—Sầm cuống dài (Vietnamese). Shuichiro TAGANE, Van-Son DANG, Ba Vuong TRUONG, Quoc Bao NGUYEN, Quoc Trong PHAM, Tran Vy NGUYEN, Takenori YAMAMOTO, Deuanta KONGXAISAVATH, Kaito YAMAZAKI, Maxim S. NURALIEV, Constantin I. FOMICHEV and Phetlasy SOULADETH. 2025. Memecylon longipedunculatum (Melastomataceae), A New Species from Coastal Areas of south central Vietnam. Phytotaxa. 683(1); 1-8. DOI: doi.org/10.11646/phytotaxa.683.1.1 [2025-01-29] | ||||||
| 5:08p | [Paleontology • 2025] New Information on Bonapartenykus (Theropoda: Alvarezsauridae) from the Allen Formation (middle Campanian-lower Maastrichtian) of Río Negro Province, Patagonia, Argentina clarifies the Patagonykinae body plan
Abstract Alvarezsauria is a group of morphologically distinctive, medium- to small-sized later-diverging coelurosaurian theropod dinosaurs, whose record ranges from the Late Jurassic to the Late Cretaceous. This clade had a widespread distribution in Laurasia in what is now Europe, Asia, and North America, although there are also several Cretaceous taxa from Gondwana in what is now Argentina that all belong to the family Alvarezsauridae. Although alvarezsaurid taxonomic diversity and anatomical knowledge has expanded over the last decade, alvarezsaurid internal phylogenetic relationships remain highly debated. In this contribution, we describe new alvarezsaurid material and review previously reported alvarezsaurid specimens from the middle Campanian—lower Maastrichtian Allen Formation discovered at the Salitral Ojo de Agua locality in Río Negro province, Patagonia, Argentina. Although these specimens were collected at different times without precise original provenance information, here we gathered X-ray diffraction data of the associated sediments that now suggests that all of these specimens come from the same site and stratigraphic level as the holotype of the alvarezsaurid Bonapartenykus ultimus. Based on this new provenance information and the morphological similarity of the considered specimens, here we tentatively refer them to the genus Bonapartenykus. These newly referred specimens add to the record of this genus and shed light on the body plan of the alvarezsaurid clade Patagonykinae by permitting a more complete reconstruction of the neck, pectoral girdle, hindlimb, and tail.  Systematic paleontology Theropoda Marsh, 1881. Coelurosauria Huene, 1920. Alvarezsauria Bonaparte, 1991. Alvarezsauridae Bonaparte, 1991. Patagonykinae Agnolín, Powell, Novas, Kundrát, 2012. cf. Bonapartenykus ultimus Agnolín, Powell, Novas, Kundrát, 2012.
Jorge Gustavo Meso, Jonah Nathaniel Choiniere, Mattia Antonio Baiano, Stephen Louis Brusatte, Juan Ignacio Canale, Leonardo Salgado, Diego Pol and Michael Pittman. 2025. New Information on Bonapartenykus (Alvarezsauridae: Theropoda) from the Allen Formation (middle Campanian-lower Maastrichtian) of Río Negro Province, Patagonia, Argentina clarifies the Patagonykinae body plan. PLoS ONE. 20(1): e0308366. DOI: doi.org/10.1371/journal.pone.0308366 |
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