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Tuesday, March 19th, 2024
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| 2:10a | [Crustacea • 2024] Caligoplagusia okinawa • A New Genus and Species of A Submarine Cave Crab of the Family Plagusiidae Dana, 1851 (Brachyura: Grapsoidea) from Okinawa Island, Ryukyu Islands, southwestern Japan
Abstract Caligoplagusia okinawa n. gen. & n. sp., assigned to the brachyuran family Plagusiidae Dana, 1851 is described on the basis of a male and a female specimens collected from a semi-submerged marine cave on the limestone shore of Okinawa Island, Ryukyu Islands, southwestern Japan. The new monotypic genus is most similar to Euchirograpsus H. Milne Edwards, 1853 and Miersiograpsus Türkay, 1978 in that the frontal margin lacks a deep sublateral cleft adjacent to the orbit, but differs significantly by its subhexagonal carapace shape, the anterolateral margin of the carapace with three teeth including the external orbital tooth, the anterior margin of ambulatory meri each armed with a row of large teeth, and the greatly reduced eyes. The pale body colour, reduced eyes, the very elongate antennal flagellum, and long ambulatory legs are all typical brachyuran adaptations to living in cave environments. This is the first cave-dwelling species of the family Plagusiidae. Crustacea, Thoracotremata, anchialine, dark environment, cryptic fauna Caligoplagusia okinawa n. gen. & n. sp. 「ヨミノショウジンガニ」 Yoshihisa Fujita and Tohru Naruse. 2024. A New Genus and Species of A Submarine Cave Crab of the Family Plagusiidae Dana, 1851 (Crustacea: Brachyura: Grapsoidea) from Okinawa Island, Ryukyu Islands, southwestern Japan. Zootaxa. 5410(3); 408-418. DOI: 10.11646/zootaxa.5410.3.8 Researchgate.net/publication/378179989_A | ||||
| 2:10a | [Diplopoda • 2023] Illacme socal • A New Species of Illacme (Siphonophorida: Siphonorhinidae) from southern California
Abstract The millipede fauna inhabiting deep soil are poorly known. They are small and threadlike, slow moving, lacking pigmentation, and rarely encountered due to their obscure underground way of life. One family, the Siphonorhinidae, encompasses four genera and 12 species in a fragmentary distribution in California, southern Africa, Madagascar, the Malay Archipelago, and Indo-Burma. The family is represented in the Western Hemisphere by a single genus, Illacme Cook & Loomis, 1928 from California, with its closest known relative, Nematozonium filum Verhoeff, 1939, from southern Africa. A new species of this family is documented from soil microhabitats in the Los Angeles metropolitan area, Illacme socal Marek & Shear, sp. nov. Based on this discovery and the recent documentation of other endogean millipede species, we show that these grossly understudied subterranean fauna represent the next frontier of discovery. However, they are threatened by encroaching human settlement and habitat loss, and conservation of this species and other subterranean fauna is of high importance. Key words: Colobognatha, Illacme plenipes, interstitial, Myriapoda, Siphonorhinus, super-elongation Class Diplopoda de Blainville in Gervais, 1844 Subclass Chilognatha Latreille, 1802/1803 Infraclass Helminthomorpha Pocock, 1887 Subterclass Colobognatha Brandt, 1834 Order Siphonophorida Hoffman, 1980 Family Siphonorhinidae Cook, 1895 Genus Illacme Cook & Loomis, 1928
 Illacme socal Marek & Shear, sp. nov. Vernacular name: Los Angeles Thread Millipede Diagnosis: Adult males of I. socal sp. nov. are distinct from I. plenipes and I. tobini based on the combination of: Metazonites slightly wider than prozonites, with faintly enlarged paranota (Suppl. material 5: fig. S17), not subequal in width as in I. plenipes nor noticeably wider as in I. tobini. Ozopore peritreme with two large backwards projecting spines (sp, Suppl. material 5: fig. S20) as in I. plenipes, not lacking two large spines as in I. tobini. Ozopore ringed with ca. 14 setae. Ozopores situated inside (mediad) lateral margin, oriented dorsally (Suppl. material 5: fig. S17) as in I. plenipes, not dorsolaterally and near lateral margin as in I. tobini. Metazonite posterior margin (limbus) lined with anchor-shaped, posteriorly projecting spines as in I. plenipes (an, Suppl. material 5: figs S17, S20); spines not quadrate-shaped as in I. tobini. Posterior margin of metazonite straight as in I. plenipes, not sinuate with anteriorly curved paramedial margins as in I. tobini (Suppl. material 5: fig. S17). Telson densely covered with ... Etymology: The species name refers to its type locality in Southern California, commonly shortened to SoCal. Paul E. Marek, Charity L. Hall, Cedric Lee, James Bailey, Matt C. Berger, Matt T. Kasson and William Shear. 2023. A New Species of Illacme from southern California (Siphonophorida, Siphonorhinidae). ZooKeys. 1167: 265-291. DOI: 10.3897/zookeys.1167.102537 new.nsf.gov/science-matters/researc | ||||
| 2:55a | [Paleontology • 2024] Hesperonyx martinhotomasorum • An unexpected early-diverging iguanodontian dinosaur (Ornithischia: Ornithopoda) from the Upper Jurassic of Portugal
ABSTRACT Iguanodontia is a diverse clade of herbivorous ornithischian dinosaurs that were speciose and abundant during the Jurassic and Cretaceous. Although the monophyly of Iguanodontia is well supported, their internal relationships have sparked heated debate due to several phylogenetic paradigm shifts. Late Jurassic basally branching iguanodontians in particular are not well understood in terms of their systematic affinities and evolutionary relevance. Their fossil record in Europe is meager compared with North America, with only a few species currently recognized. Two taxa are currently known from the Upper Jurassic of England, the basally branching styracosternan Cumnoria prestwichii and the putative dryosaurid Callovosaurus leedsi. In the Upper Jurassic of Portugal, the styracosternan Draconyx loureiroi and the dryosaurid Eousdryosaurus nanohallucis are presently the only described basally branching iguanodontians. Here we report a new species of early diverging iguanodontian from the Upper Jurassic Lourinhã Formation of western-central Portugal. The new species is clearly distinguished from all other coeval taxa by an exclusive combination of characters that include a tibia with a cnemial crest that is directed craniolaterally and a fibular condyle that is angled at 90° with respect to the proximal epiphysis, a fibula with symmetrical proximal margins, and a reduced metatarsal I. The phylogenetic relationships of the Lourinhã iguanodontian were explored using maximum parsimony and Bayesian inference. The two analyses recover the Lourinhã iguanodontian as an indeterminate dryomorphan, with more precise affinities precluded due to the current available material. Body size is estimated between 3 and 4 meters for the holotype specimen, adding to the diversity of small ornithopods already recognized in the paleoichnological record of the Lourinhã Formation.
Filippo Maria Rotatori, Lucrezia Ferrari, Cristina Sequero, Bruno Camilo, Octávio Mateus and Miguel Moreno-Azanza. 2024. An unexpected early-diverging iguanodontian dinosaur (Ornithischia, Ornithopoda) from the Upper Jurassic of Portugal. Journal of Vertebrate Paleontology. e2310066. DOI: 10.1080/02724634.2024.2310066 | ||||
| 1:50p | [Entomology • 2024] Acromantis lobofemorata • A New Species of Acromantis Saussure, 1870 (Mantodea: Hymenopodidae) from India
Abstract Acromantis lobofemorata sp. nov., a new praying mantis species of the subfamily Acromantinae (Mantodea: Hymenopodidae), is described from the Southern states of India. The specimens of the present species were misidentified and referred as Acromantis insularis on several occasions by earlier workers in India. The new species can be easily identified from other species of the genus by the presence of a mid-lobe on the upper margin of the fore femora, a small medial mesofemoral lobe and well-developed denticles on pronotum laterally. A preliminary key for the identification of the Indian Acromantis species is also provided. Keywords: Acromantis, new species, praying mantids, south India Ambayathingal P. Kamila and Pavittu Meethal Sureshan. 2024. Description of A New Species of Acromantis Saussure, 1870 (Mantodea: Hymenopodidae) from India. Journal of Insect Biodiversity and Systematics. 10(2); 273–284. DOI: 10.61186/jibs.10.2.273  | ||||
| 2:57p | [Botany • 2024] Holcoglossum clausum (Orchidaceae: Epidendroideae: Aeridinae) • A New Species from Southern Shan State, Myanmar with Taxonomic Notes on Holcoglossum himalaicum
Abstract A new species of Holcoglossum is described and illustrated from Myanmar with colour plates, line drawing and photographs. The comparison and differentiation are made with H. semiteretifolium and H. himalaicum. Holcoglossum clausum is allied to H. himalaicum owing to the similar coloration and the long spur, however, they differ based on the size of the petals (7–8 mm × 2–3 mm vs. 4–5 mm × 2 mm), the length of the petiole (1.8 cm vs. 3–4 cm) and the length of the stem (4 cm vs. 5–24 cm). From H. semiteretifolium the new species can be distinguished by its growth (pendant vs. upright), the much longer leaves (45 cm vs. 15 cm) and the longer spur (1.3 cm vs. 6.4 mm). Furthermore, we reduce H. gaoligongense and Pendulorchis gaoligongense var. lushuiensis to the synonymy of H. himalaicum, as there are no discernible morphological differences between them, and they both inhabit the same climate type, namely the subtropical highland climate. Epidendroideae, Holcoglossum clausum, Indo-Myanmar Biodiversity Hotspot, wild orchid trade, Vandeae, Monocots   K. Philip Wojtas, Champika Bandara and Pankaj Kumar. 2024. A New Species of Holcoglossum (Orchidaceae, Aeridinae) from Southern Shan State, Myanmar with Taxonomic Notes on Holcoglossum himalaicum. Phytotaxa. 638(3); 257-267. DOI: 10.11646/phytotaxa.638.3.5 www.linkedin.com/posts/pankaj-kumar-phd-f facebook.com/companyofenvironment76/posts/864294729042576 |
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