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Monday, June 10th, 2024
| Time | Event | ||||||||
| 1:31a | [Mollusca • 2023] Gyliotrachela khmeriana • Notes on the hypselostomatid snails (Gastropoda: Heterobranchia) from limestone hills in Western Cambodia with a new record and a new species
ABSTRACT Thirteen hypselostomatid microsnails have been reported so far from Cambodia: 10 species from the Mekong Delta karsts in the south and three species from the Sisophon-Battambang limestone hills in the west. Herein, Gyliotrachela torticollis Benthem Jutting, 1962, the only species previously reported from the Battambang, is redescribed based on near-type locality specimens. We describe a new species, Gyliotrachela khmeriana sp. nov., from the Cambodian Sisophon-Battambang limestone hills. This new species differs from all other known hypselostomatid species in having a short and straight tuba, protoconch sculptures with shallow pits and spiral striations, and apertural dentition with parietal, angular, and four other lamellae on the palatal wall. In addition, specimens of ‘Anauchen srakeoensis Panha and Burch, 2004’, previously recorded only in Thailand, were collected from limestone hills in Sisophon, redescribed based on shell morphology and taxonomically relocated as a member of the Hypselostoma. KEYWORDS: Micro, snails, Indochina, endemic, Mekong, pupillids  Gyliotrachela khmeriana sp. nov. Chirasak Sutcharit, Peng Bun Ngor, Barna Páll-Gergely, Ekgachai Jeratthitikul, Warut Siriwut, Ruttapon Srisonchai, Ting Hui Ng, Parin Jirapatrasilp and Somsak Panha. 2023. Notes on the hypselostomatid snails (Gastropoda: Heterobranchia) from limestone hills in Western Cambodia with a new record and a new species. Journal of Natural History. 57(25-28); 1287-1303. DOI: 10.1080/00222933.2023.2223386 | ||||||||
| 1:31a | [Ichthyology • 2024] Nannocharax skeltoni • A New Species of Banded Nannocharax (Cithariniformes: Distichodontidae) from the Luapula River Basin, Zambia, Africa
Abstract A new species of Nannocharax is described from the Luongo and Kalungwishi Rivers, tributaries of the Luapula River in the northeastern region of Zambia. The new species differs from its congeners by a combination of characters, such as the body coloration pattern formed by a series of one-scale-wide vertical bars, a small caudal-peduncle spot surrounded by a light clear area at the base of the middle caudal-fin rays, and a low number of scales in the circumpeduncular series and lateral line series. The new species is also distinguished from other members of the Nannocharax multifasciatus species-group by genetic distances ranging from 10.3% to 11.6% with DNA barcoding. Likewise, distance and coalescent molecular species delimitation approaches recovered the new species as an independent operational taxonomic unit. Newly generated hypotheses of phylogenetic relationships based on maximum likelihood and Bayesian inference for the new taxon are provided.
Nannocharax skeltoni, new species Etymology.—The species name, skeltoni, is in honor of Professor Paul Harvey Skelton of the South African Institute for Aquatic Biodiversity, in recognition of his outstanding contributions to our knowledge of the diversity and biogeography of African fishes. A genitive noun Fernando C. Jerep, Richard P. Vari, Casey B. Dillman and C. David de Santana. 2024. A New Species of Banded Nannocharax from the Luapula River Basin, Zambia, Africa (Cithariniformes: Distichodontidae). Ichthyology & Herpetology. 112(2):156-167. DOI: 10.1643/i2023041 | ||||||||
| 1:32a | [Botany • 2024] Gymnostachyum calcicola (Acanthaceae: Andrographideae) • A New Species from Limestone Karst of Peninsular Malaysia
Abstract A new species, Gymnostachyum calcicola Rafidah, sp. nov. (Acanthaceae) is described from limestone karst in Peninsular Malaysia. Characters distinguishing it from related species, colour photographs, botanical illustration and provisional conservation status are provided. Key words: Andrographideae, endemic, flora, Kelantan, taxonomy
Gymnostachyum calcicola Rafidah, sp. nov. Diagnosis: Unique among Peninsular Malaysian species of Gymnostachyum by having a racemose inflorescences occasionally lower axils with pairs of flowers and dichasium inflorescence with opposite branches. Gymnostachyum calcicola shows affinity with Gymnostachyum decurrens var. decurrens and var. robinsonii by its crowded rosette leaves at the base, however it is different in the inflorescences type. Etymology: The specific epithet refers to the limestone habitat of this species. Abdul Rahman Rafidah, Abdul Rahman Ummul Nazrah and Poh Teck Ong. 2024. Gymnostachyum calcicola (Acanthaceae), A New Species from Limestone Karst of Peninsular Malaysia. PhytoKeys. 242: 273-280. DOI: 10.3897/phytokeys.242.122869 | ||||||||
| 3:33a | [Mollusca • 2017] Leoparreysia gen. nov. & Trapezidens gen. nov., Radiatula mouhoti, Trapezoideus panhai, ... • New Taxa of Freshwater Mussels (Unionidae) from A Species-rich but overlooked Evolutionary Hotspot in Southeast Asia
 Abstract Southeast Asia harbors a unique and diverse freshwater fauna of Mesozoic origin, which is under severe threat of extinction because of rapid economic development and urbanization. The largest freshwater basins of the region are certainly the primary evolutionary hotspots and they attract the most attention as key biodiversity areas for conservation. In contrast, medium-sized rivers are considered low-importance areas with secondary biodiversity, whose faunas originated via founder events from larger basins during the Pleistocene, although such a scenario has never been tested by using a phylogenetic approach. In this investigation, we used freshwater mussels (Unionidae) as a model to estimate the levels of endemism within the Sittaung, a little-known remote basin in Myanmar, compared with the surrounding larger rivers (Irrawaddy, Salween and Mekong). We discovered that the Sittaung represents an exceptional evolutionary hotspot with numerous endemic taxa of freshwater mussels. On the basis of our extensive dataset, we describe two new tribes, two genera, seven species and a subspecies of Unionidae. Our results highlight that medium-sized basins may represent separate evolutionary hotspots that harbor a number of endemic lineages. These basins should therefore be a focus of special conservation efforts alongside the largest Southeast Asian rivers. Leoparreysiini Vikhrev, Bolotov et Kondakov tribe nov. Pilsbryoconchini Bolotov, Vikhrev et Tumpeesuwan tribe nov. 
Ivan N. Bolotov, Ilya V. Vikhrev, Alexander V. Kondakov, Ekaterina S. Konopleva, Mikhail Yu. Gofarov, Olga V. Aksenova and Sakboworn Tumpeesuwan. 2017. New Taxa of Freshwater Mussels (Unionidae) from A Species-rich but overlooked Evolutionary Hotspot in Southeast Asia Scientific Reports. 7, Article number: 11573. DOI: 10.1038/s41598-017-11957-9 | ||||||||
| 3:52a | [Botany • 2024] Impatiens yingjingensis (Balsaminaceae) • A New Species from Sichuan, China
Abstract This study describes Impatiens yingjingensis X.Q. Song, B.N. Song & Biao Yang, sp. nov., a new species collected from the Yingjing area of the Giant Panda National Park. This new species is distributed at an altitude of 1400–2100 m, with a plant height of 30–130 cm. The flowers are purple-red or light purple red, with 3–9 flowers on each inflorescence and the dorsal auricle of the lateral united petals is thread-like and about 2 cm long, differing significantly from other species of Impatiens. Furthermore, molecular data, as well as micro-morphological evidence under SEM (of pollens), also support the establishment of the new species. Key words: Balsaminaceae, Giant Panda National Park, Impatiens, new species, Yingjing County 
Impatiens yingjingensis X.Q. Song, B.N. Song & Biao Yang, sp. nov. Diagnosis: Impatiens yingjingensis can be distinguished by the following morphological features from related species of Impatiens: purple-red or light purple-red flowers; inflorescence with 3–9 flowers; lower petal gradually narrowing at the base into a sickle-shaped spur approximately 2 cm long; lateral united petals 2-lobed, auricle linear approximately 2 cm, elongate and inserted into spur. Etymology: The species is named after Yingjing County, Sichuan Province, China, which is the type locality. The Chinese name is given as “荥经凤仙花”. Xinqiang Song, Boni Song, Mingxia Fu, Jiacai Wang, Jingyi Liu, Weirui Qin, Yuzhou Jiang, Leni Fan and Biao Yang. 2024. Impatiens yingjingensis (Balsaminaceae), A New Species from Sichuan, China. PhytoKeys. 242: 293-306. DOI: 10.3897/phytokeys.242.119702 | ||||||||
| 10:16a | [Botany • 2024] Campanula densiciliata (Campanulaceae) • A New Species from Western Himalaya, India
Abstract A new species Campanula densiciliata from Yamunotri, Uttarakhand is described and illustrated. The new species is closely
related with other previously described species namely, Campanula argyrotricha and C. latifolia but, differ in its rounded
leaf base with sinuate margins, much reduced calyx teeth less than half of the corolla with crenate margin, elliptic corolla
lobes and different lengths of stigmatic lobes. The new species is found in humus rich soil under Rhododendron forest. Key words: Campanula densiciliata, new species, Uttarakhand, Yamunotri
Campanula densiciliata Acharya Balkrishna, Harsh Singh, B.Joshi & R.K.Mishra sp. nov. Diagnosis:— Campanula densiciliata shares similarities with C. argyrotricha, but it differs in sinuate leaves, rounded leaf base, reduced, crenate calyx teeth (less than half of the corolla), elliptic corolla lobes, and different lengths of stigmatic lobes (vs. dentate, crenate to serrate leaves, attenuate or cuneate base, entire calyx teeth half as long as corolla with entire or dentate margin and oblongoblanceolate to oblong-obovate corolla lobes, where stigmatic lobes are equally placed in C. argyrotricha. It is also similar to C. latifolia Linnaeus (1753: 165) but differs in ovate-elliptic, small (1.8–2.8 × 1.7–2.2 cm) leaves, solitary, terminal inflorescence, small flower c. 2.8 cm long, anther 1.4 mm long, stigmatic lobes with two different lengths (vs. lanceolate to ovate, large (12 × 7 cm) leaves, inflorescence on the axils of upper leaves forming a raceme, large flower 3–4 cm long, anther 8-11 mm long, same length stigmatic lobe). Etymology:—The specific epithet ‘densiciliata’ is derived from its densely hairy margin of the calyx lobes. Acharya Balkrishna, Harsh Singh, Bhasker Joshi, Anupam Srivastava, Aashish Kumar, Amit Kumar, Prashant Vats, Vikram Singh and Rajesh Kumar Mishra. 2024. A New Species of Campanula L. (Campanulaceae) from Western Himalaya, India. Phytotaxa. 652(3);227-234. DOI: 10.11646/phytotaxa.652.3.4 | ||||||||
| 11:00a | [Botany • 2023] Prunus quanzhouensis (Prunus subg. Cerasus, Rosaceae ) • A New Species from northeastern Guangxi, China
Abstract Prunus quanzhouensis is a new species of Rosaceae discovered in Guangxi, China, which is here described and illustrated. Despite its morphological similarities to P. campanulata, P. conradinae and P. xueluoensis, it can be distinguished from them by being shrubs or small trees, with 1.5–3.0 m tall, leaves with 10–13 pairs of lateral veins, abaxially glabrous involucral bracts, adaxially appressed villous bracts, flowers measuring 1–1.2 cm in diameter, tubular hypanthium with about 9×3 mm, oblique sepals, 30–35 stamens, and a style that is villous and longer than the stamens. Less than six populations of this new species have been found in the type locality, with approximately 130 mature individuals, which accounted for more than 95% of the total population. Based on direct observation in the field and the IUCN Red List Categories and Criteria, P. quanzhouensis is classified as Endangered (EN). Eudicots, Endangered, new species, Quanzhou Tianhu National Wetland Park, systematics, taxonomy  全州樱花 Prunus quanzhouensis Jian L. Li, S.H. Liang & R.H. Jiang Sheng-Hua Liang, Bo Qin, Yao-Heng Huang, Li-Ming Tang, Zhan-Jiang Zhang, Cui Li, Ying-Hui He, Ri-Hong Jiang and Jian-Ling Li. 2023. Prunus quanzhouensis: a newly discovered species of Prunus subgen. Cerasus (Rosaceae) from northeastern Guangxi, China. Phytotaxa. 622(4); 252-259. DOI: 10.11646/phytotaxa.622.4.2 www.gxlky.com.cn/g/7478.html | ||||||||
| 1:40p | [PaleoMammalogy • 2024] Buronius manfredschmidi • A New small hominid (Primates: Hominidae) from the early late Miocene of Hammerschmiede (Bavaria, Germany)
Abstract The known diversity of European middle and late Miocene hominids has increased significantly during the last decades. Most of these great apes were frugivores in the broadest sense, ranging from soft fruit frugivores most like chimpanzees to hard/tough object feeders like orangutans, varying in size from larger than siamangs (over 17 kg) to larger than most chimpanzees (~60–70 kg). In contrast to the frequent sympatry of hominoids in the early-to-middle Miocene of Africa, in no European Miocene locality more than one hominid taxon has been identified. Here we describe the first case of hominid sympatry in Europe from the 11.62 Ma old Hammerschmiede HAM 5 level, best known from its excellent record of Danuvius guggenmosi. The new fossils are consistent in size with larger pliopithecoids but differ morphologically from any pliopithecoid and from Danuvius. They are also distinguished from early and middle Miocene apes, share affinities with late Miocene apes, and represent a small hitherto unknown late Miocene ape Buronius manfredschmidi. With an estimated body mass of about 10 kg it represents the smallest known hominid taxon. The relative enamel thickness of Buronius is thin and contrasts with Danuvius, whose enamel is twice as thick. The differences between Buronius and Danuvius in tooth and patellar morphology, enamel thickness and body mass are indicative of differing adaptations in each, permitting resource partitioning, in which Buronius was a more folivorous climber.
 Systematic paleontology Order Primates Linnaeus, 1758 Infraorder Catarrhini Geoffroy, 1812 Family Hominidae Gray 1825 Buronius manfredschmidi nov. gen. et sp. Holotype: GPIT/MA/13005: An unworn left upper M2 germ, crown complete with no root formation Derivation nominis: Genus name after Buron, the medieval name for the city of Kaufbeuren, which is located 5 km to the south of the Hammerschmiede clay-pit. The specific epithet is in honour of Dr. med. dent. Manfred Schmid (Marktoberdorf), a private collector who joined Sigulf Guggenmoos in collecting fossils from Hammerschmiede since the late 1970’s. M. Böhme, D. R. Begun, A. C. Holmes, T. Lechner and G. Ferreira. 2024. Buronius manfredschmidi—A New small hominid from the early late Miocene of Hammerschmiede (Bavaria, Germany). PLoS ONE. 19(6): e0301002. DOI: 10.1371/journal.pone.0301002 |
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