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Wednesday, August 28th, 2024
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| 6:01a | [Funga • 2024] Peniophora salaccae (Russulales: Peniophoraceae) • A Snake Fruit (Salacca zalacca) pathogen from southern Thailand
Abstract The genus Peniophora is known to be distributed from boreal to tropical regions worldwide. During surveys of plant diseases in southern Thailand in 2022 and 2023, two specimens of rotten snake fruits (Salacca zalacca) were collected. The new species, Peniophora salaccae, is described based on collections with morphological and molecular data. This species is characterized by orange-gray to brownish-orange basidiomes, simple-septate generative hyphae, brown lamprocystidia, subclavate to subcylindrical gloeocystidia, and subtriangular basidiospores. It can be distinguished from P. trigonosperma by its larger basidiospores and shorter lamprocystidia. Molecular phylogenetic analyses of the internal transcribed spacers (ITS) and the large subunit (nrLSU) of the nuclear ribosomal DNA (rDNA) confirmed the position of the new species within the genus Peniophora. The full description, color photographs, illustrations, and the phylogenetic tree showing the position of P. salaccae are provided. Additionally, pathogenicity tests showed that P. salaccae could infect snake fruits, which developed the same symptoms under artificial inoculation conditions as those observed in the field. Corticioid fungus, pathogenic fungus, phylogeny, taxonomy, tropical area, Fungi  Peniophora salaccae sp. nov.  Sawai Boukaew, Jaturong Kamla and Nakarin Suwannarach. 2024. Peniophora salaccae sp. nov. (Russulales, Basidiomycota), A Snake Fruit (Salacca zalacca) pathogen from southern Thailand. Phytotaxa. 662(2); 137-149. DOI: doi.org/10.11646/phytotaxa.662.2.2 Researchgate.net/publication/382967126_P โรคอุบัติใหม่ในประเทศไทย “โรคผลเน่าในสละ จากเห็ดสกุล Peniophora ที่เป็นชนิดใหม่ของโลก”  | ||||||||
| 6:39a | [Funga • 2024] Metarhizium puerense (Hypocreales: Clavicipitaceae) • A New Species from Yunnan, south-western China
Abstract Background: As a genus within the Clavicipitaceae, Metarhizium exhibits rich morphological and ecological diversity, with a wide distribution and a variety of hosts. Currently, sixty-eight species of Metarhizium have been described. New information: A new species of Metarhizium, M. puerense (Hong Yu bis), was described in Pu'er City, Yunnan Province, south-western China. Based on morphological characteristics and multilocus phylogenetic analyses, Metarhizium puerense was confirmed to be phylogenetically related to M. album, but was clearly separated and formed a distinct branch. In contrast, the host of Metarhizium album was plants and leafhoppers and that lepidopteran larvae were the host of M. puerense. The diagnostic features of M. puerense were solitary to multiple stromata and smooth-walled, cylindrical with rounded apices conidia. Keywords: Metarhizium, morphology, phylogenetic analyses
Metarhizium puerense Hong Yu bis, J. M. Ma & Z.Q. Wang, sp. nov. Jin Mei Ma, Zhi Qin Wang, Zhi Li Yang, Yue Chen, Song Yu Li and Hong Yu. 2024. Metarhizium puerense (Hypocreales, Clavicipitaceae): A New Species from Yunnan, south-western China. Biodiversity Data Journal. 12: e129087. DOI: doi.org/10.3897/BDJ.12.e129087 | ||||||||
| 10:12a | [Paleontology • 2024] Qianjiangsaurus changshengi • A New late-diverging non-hadrosaurid hadrosauroid (Iguanodontia: Hadrosauriformes) from southwest China: Support for Interchange of Dinosaur Faunas across East Asia during the Late Cretaceous
Abstract A non-hadrosaurid hadrosauroid, Qianjiangsaurus changshengi gen. et sp. nov., is named and described here based on an incomplete, partially articulated skeleton from the top of the Upper Cretaceous Zhengyang Formation in Qianjiang District, Chongqing Municipality, southwest China. The skeleton displays a transitional morphology between non-hadrosaurid hadrosauroids and hadrosaurids. The diagnosis of the taxon is therefore defined as a unique combination of characters, including a series of plesiomorphic features typical of non-hadrosaurid hadrosauroids, some apomorphic features common among hadrosaurids but rarely reported in non-hadrosaurid hadrosauroids, and a probable autopomorphy, namely the fan-shaped prepubic process of the pubis strongly anteroposteriorly constricted and dorsoventrally expanded, with the length/height ratio of ∼0.79. Phylogenetic analysis recovers a sister-taxon relationship between Qianjiangsaurus and Plesiohadros outside of Hadrosauridae, and the clade consisting of the two taxa is positioned higher on the tree than Gobihadros and Gilmoreosaurus, but below the clade of Telmatosaurus + Tethyshadros, Eotrachodon and Zhanghenglong. Combining the morphological data with the phylogenetic topology identifies Q. changshengi as a late-branching non-hadrosaurid hadrosauroid. Given that the age assemblage of the eight hadrosauroids closely related to Qianjiangsaurus in phylogeny spans the Santonian–early Maastrichtian time interval, the top of the Zhengyang Formation, from which Qianjiangsaurus is recovered, is possibly restricted to the late Late Cretaceous in age. Hierarchical clustering of twelve hadrosauroid-bearing dinosaur assemblages from the Late Cretaceous deposits of Asia shows a strong correlation between the Zhengyang Formation and the Djadokhta and Baruungoyot formations in Mongolia that supports coeval interchange of dinosaur faunas across East Asia. Systematic paleontology Dinosauria Owen, 1842 Ornithischia Seeley, 1888 Iguanodontia Dollo, 1888 sensu Sereno, 1998 Ankylopollexia Sereno, 1986 sensu Sereno, 1998 Hadrosauriformes Sereno, 1997 sensu Sereno, 1998 Hadrosauroidea Cope, 1869 sensu Sereno, 1998   Qianjiangsaurus gen. nov. Qianjiangsaurus changshengi sp. nov. Holotype. CLGRP V00016, an incomplete, partially articulated skeleton, Taxonomic status of Qianjiangsaurus changshengi: Qianjiangsaurus changshengi entirely represented by the holotype CLGRP V00016 displays a series of plesiomorphic features that are typical of non-hadrosaurid hadrosauroids, including the transversely wide, U-shaped predentary in dorsal view with the smoothly arcuate anterolateral margins, the dentary with no more than 30 alveoli, the right-angled coronoid process relative to the dorsal edge of the main body of the dentary, the dentary tooth crown lingually ornamented with a slightly distally ...     Conclusions: Qianjiangsaurus changshengi gen. et sp. nov. is a second formally named hadrosauroid dinosaur from south China, in addition to Nanningosaurus dashiensis. The discovery of this new taxon has furthered our understanding of the diversity and late evolution of non-hadrosaurid hadrosauroids. The holotype of Q. changshengi recovered from the Upper Cretaceous Zhengyang Formation of southeast Chongqing Municipality in southwest China clearly exhibits a transitional morphology between non-hadrosaurid ...  Hui Dai, Qingyu Ma, Can Xiong, Yu Lin, Hui Zeng, Chao Tan, Jun Wang, Yuguang Zhang and Hai Xing. 2024. A New late-diverging non-hadrosaurid hadrosauroid (Dinosauria: Ornithopoda) from southwest China: Support for Interchange of Dinosaur Faunas across East Asia during the Late Cretaceous. Cretaceous Research. In Press, 105995. DOI: doi.org/10.1016/j.cretres.2024.105995 | ||||||||
| 1:09p | [Ichthyology • 2024] Leucoraja longirostris • A Remarkable New Skate Species of Leucoraja Malm, 1877 (Rajiformes: Rajidae) from the Southwestern Indian Ocean: Introducing 3D Modeling as an Innovative Tool for the Visualization of Clasper Characters
Abstract A remarkable new deep-water skate, Leucoraja longirostris n. sp., is described based on eight specimens caught during different expeditions to the southern Madagascar Ridge in the southwestern Indian Ocean. The new species differs from all congeners by its remarkably long and acutely angled snout (horizontal preorbital length 17.2–22.6% TL vs. 8.5–11.9% TL and 4.2–6.1 vs. 1.7–3.5 times orbit length, snout angle 65–85° vs. 90–150°). Furthermore, it is apparently endemic to the Madagascar Ridge, distant from the known distribution areas of all congeners. In addition to L. fullonica and L. pristispina, L. longirostris n. sp. is also the only species with plain dorsal coloration. Furthermore, the new species is the only Leucoraja species with an external clasper component dike and, besides L. wallacei, the only one with four dorsal terminal (dt) cartilages. The shape of the accessory terminal 1 (at1) cartilage with four tips is also unique within the genus. A new approach for the visualization of the clasper characters is introduced based on 3D models of all skeletal and external features. This enables a much easier and much more precise interpretation of every single clasper component, of the entire structure, and, in particular, the relationship between external features and skeletal cartilages. A new English translation of the first diagnosis of Leucoraja is provided, along with a revised generic diagnosis and a key to the species of Leucoraja in the Indian Ocean. Keywords: Chondrichthyes; Elasmobranchii; rough skates; systematics; taxonomy; diversity; morphology; clasper features; morphometrics; meristics    Leucoraja longirostris n. sp. Distribution: the new species is only known from the type specimens, which were all caught on the southern end of the Madagascar Ridge at Walters Shoals at depths of 750–1050 m. The new species occurs much deeper than its western Indian Ocean congeners, which are known only at depths of 480–625 m (L. compagnoi), 484 m (L. elaineae), and 73–517 m (L. wallacei), respectively. Furthermore, the new species is the only species of Leucoraja in the western Indian Ocean known from seamounts or ridges, whereas its congeners in the area are only known from the outer continental shelf and upper continental slope. Conclusions: The conservation status of Leucoraja skates reveals that five of the 14 assessed species are threatened, including L. melitensis (Critically Endangered), L. circularis and L. ocellata (Endangered), L. fullonica and L. wallacei (Vulnerable), while one species (L. leucosticta) is Near Threatened, six species (L. erinacea, L. garmani, L. lentiginosa, L. naevus, L. pristispina, and L. yucatanensis) are Least Concern, and two species (L. compagnoi and L. elaineae) are Data Deficient. The recognition of a new species, Leucoraja longirostris n. sp., provides new insights into the morphological variation within the genus Leucoraja and constitutes a very unusual and remarkable addition to this skate genus. Nevertheless, the very restricted distribution of the new species raises concerns over its ability to sustain fisheries and it may be susceptible to capture in longline and, particularly, deep-water trawl fisheries. Very little information is available about fisheries operating in the area of the Madagascar Ridge, but this deep-water skate is likely unable to withstand intensive fishing pressure due to its potentially slow life history characteristics and low productivity. Walters Shoals was previously heavily fished, and this pressure may recur in the future. As fisheries targeting Orange Roughy (Hoplostethus atlanticus Collett, 1889) and Alfonsino (Beryx decadactylus Cuvier, 1829) have typically used mid-water trawls off the bottom, the new species may have a benthic refuge. However, further research is needed investigating its distribution, life history, population size and trends, and threats. This is essential for improved data collection and research, and for more effective conservation and management policy decisions. Simon Weigmann, Matthias F. W. Stehmann, Bernard Séret and Hajime Ishihara. 2024. Description of a Remarkable New Skate Species of Leucoraja Malm, 1877 (Rajiformes, Rajidae) from the Southwestern Indian Ocean: Introducing 3D Modeling as an Innovative Tool for the Visualization of Clasper Characters. Biology. 13(6); 405. DOI: doi.org/10.3390/biology13060405 Simple Summary: Skates of the genus Leucoraja Malm, 1877, are small to medium-sized skates that usually have a short, obtusely angled snout. Until now, 14 valid species of this genus have been identified mostly in the Atlantic, but also in the Indian Ocean. In the 1970s and 1980s, a total of eight specimens of an unusual skate species were collected by researchers working on the Madagascar Ridge, an elevated area of seabed in the southwestern Indian Ocean. Despite their long snouts, the specimens could unambiguously be assigned to the genus Leucoraja due to the typical features of their claspers. Comparisons with congeners clearly indicated that these remarkable specimens represent a species new to science. It can easily be distinguished from all 14 congeners by the long and acutely pointed snout. Furthermore, it appears to occur only on the Madagascar Ridge, distant from the known distribution areas of all congeners, and shows several unique aspects in its clasper morphology. Due to the importance of the clasper features, 3D modeling is introduced as a new tool for the visualization of clasper characters. The newly described species is named Brown longnose skate. | ||||||||
| 1:38p | [Botany • 2023] Dalechampia seccoi (Euphorbiaceae) • A threatened New Species from Southeastern Brazil
Abstract Dalechampia seccoi is a new endemic species of Euphorbiaceae from the Atlantic Forest domain, southeastern Brazil. Here we describe and illustrate the new species. Collections of botanical material, and standard herbarium practices were applied. The new species is vegetatively similar to D. alata, D. erythrostyla, D. pentaphylla, D. violacea, and D. purpurata, however it is distinguished by exclusive characters such as involucral bracts 4‒5-lobed, pinkish, staminate sepals vinaceous, resin darkish and stigma yellow lobed to crateriform. The new species is restricted to Seasonal Semideciduous Forest with altitudes of ca. 700 m from Caparaó, south of the state of Espírito Santo. In addition, we provide field photographs, preliminary conservation status assessments using IUCN Red List guidelines, as well as a checklist and key for morphological correlated species. Keywords: Acalyphoideae; Caparaó; endemism; Espírito Santo; Seasonal Semideciduous Forest; taxonomy
Dalechampia seccoi J.C.R. Mendes & Pereira-Silva, sp. nov. Dalechampia seccoi is recognized by its involucral bracts 4−5-lobed, pinkish, with magenta veins; staminate column elongated beyond the sepal tips after anthesis; staminate sepals widely lanceolate, vinaceous; style tips not moderately down-curved and stigma crateriform to slightly lobed, yellow; pistillate sepals 12, pinnatifid; 4 bracteoles of staminate pleiochasium, deltoid to oblong, free; resiniferous gland with margin fimbriate, and resin secreted darkish; and seeds grayish with macules brownish. Etymology ‒ The specific epithet honors Dr. Ricardo de S. Secco, renowned botanist at the Museu Paraense Emílio Goeldi, who contributes significantly to knowledge of the Amazonian flora, as well as of the whole of Brazil, specifically the Euphorbiaceae family, and who greatly assists in the formation of stimulating human resources Euphorbiologists. Mendes, Jone Clebson Ribeiro; Külkamp, Josimar; Bigio, Narcísio Costa; Torres-Leite, Filipe; Pereira-Silva, Rafaela Alves. 2023. Dalechampia seccoi (Euphorbiaceae), A threatened New Species from Southeastern Brazil. Acta Botanica Brasilica. 37; DOI: doi.org/10.1590/1677-941X-ABB-2023-0027 Researchgate.net/publication/372616456_Dalechampia_seccoi_a_threatened_new_species_from_Southeast | ||||||||
| 1:39p | [Herpetology • 2024] Leiolepis glaurung • the First Rock-dwelling Species of Butterfly Lizard Leiolepis Cuvier, 1829 (Squamata: Agamidae) from the Khorat Plateau in northeastern Thailand
Abstract A new species of rock-dwelling Leiolepis is described from the Khorat Plateau in northeastern Thailand. Leiolepis glaurung sp. nov. can be differentiated from all other sexual species of Leiolepis by a combination of having a black gular region with a wide medial yellow stripe, a yellow ventrum with black mottling, bright red to orange subcaudal coloration, having reduced to no expandable flanks, and having only one black transverse bar on the flanks. This is the first rocky habitat-adapted Leiolepis. Leiolepis glaurung sp. nov. demonstrates numerous ecological adaptations to survive in these rocky habitats. Leiolepis are known for their expandable flanks with bright display colors, however Leiolepis glaurung sp. nov. has reduced or no ability to expand its flanks. We hypothesize this is an adaptation to reduce their body diameter to better fit into smaller rocky burrows unlike the larger and deeper burrows constructed in looser soils by other Leiolepis species. This discovery increases the number of Leiolepis species in Thailand to six, and worldwide to 11. Key words: Conservation, Indochina, Leiolepis, phylogenetics, rock-dwelling
Leiolepis glaurung sp. nov. Suggested English name: Khorat Plateau Butterfly Lizard, ยาบ, แย้ภู Diagnosis: Leiolepis glaurung sp. nov. can be diagnosed from all sexual species of Leiolepis by having a black gular region with a wide medial yellow stripe, a yellow ventrum with black mottling, bright red to orange ventral tail coloration, having reduced to no expandable flanks, and having a maximum of one black transverse bar on the flank (Suppl. material 1). Leiolepis glaurung sp. nov. can be further diagnosed from all other sexual species by having the combination of a AG of 61.0–88.0 mm; BL of 11.0–16.8 mm; CW of 22.3–33.1 mm; DN of 4.3–6.7 mm; FA of 14.4–19.0 mm; HE of 5.6–7.1 mm; HH of 14.0–21.3 mm; HL of 28.8–41.9 mm; HW of 19.2–29.7 mm; PW of 10.5–17.0 mm; TIB of 24.34–29.0 mm; TE of 14.0–18.0 mm, RH of 9.7–14.3 mm; three dorsal stripes; 28–29 ventral scales; 21–24 dorsal caudal scales; 19–26 non-pore bearing scales between the pore-bearing femoral scales across the pelvis; maximum number of seven keeled scale rows across the forearm; 17–20 femoral pores per side; 6–8 scales across the frontal bone; maximum of nine subtibial scales; seven scales long the dorsal surface of the first toe; three enlarged subdigital lamellae on the third toe; and 32–34 scales along the dorsal surface of the fourth toe (Figs 7, 8). Etymology: The specific epithet glaurung is in reference to the large, terrestrial, golden-colored, non-winged dragon, Glaurung in Middle-earth – a character created by J.R.R. Tolkien in The Silmarillion (1977). Glaurung the Golden is the father of all dragons and tunneled into the sides of mountains forming burrows. The reduced expandable lateral flanks, yellow ventral and dorsal colors, with the construction of burrows beneath rocky outcrops is similar to the descriptions of Glaurung mentioned above, from ‘The Silmarillion’ and ‘The Children of Húrin’ (Tolkien 1977, Tolkien and Tolkien 2007). Additionally, in Thailand the word “Yae” is used to refer to Leiolepis belliana, L. ocellata, and L. rubritaeniata. However, on the Khorat Plateau the populations of Leiolepis glaurung sp. nov. are called “Yarb - ยาบ”. Pratyaporn Wanchai, Attapol Rujirawan, Matthew L. Murdoch, Akrachai Aksornneam, Pattarapon Promnun, Amanda Kaatz, Jeren J. Gregory, Eddie Nguyen, William Van Iderstein, Evan S. H. Quah, L. Lee Grismer, Jesse L. Grismer and Anchalee Aowphol. 2024. The Description of the First Rock-dwelling Species of Butterfly Lizard Leiolepis Cuvier, 1829 (Squamata, Agamidae) from the Khorat Plateau in northeastern Thailand. ZooKeys. 1210: 299-324. DOI: doi.org/10.3897/zookeys.1210.127557   |
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