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Friday, January 6th, 2023
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| 1:46a | [Botany • 2021] Impatiens wutaishanensis (Balsaminaceae) • A New Species from Southeast Yunnan, China
Abstract Impatiens wutaishanensis R.L. Liao & Lei Cai, a new species from Southeast Yunnan, China, is here described and illustrated. This new species is most similar to Impatiens parvisepala S.X. Yu & Y.T. Hou in its racemose inflorescences, its four lateral sepals, the leaf arrangement, and in having yellow flowers. However, it differs in the height of the plants, the length of the petiole, the size and shape of the leaf blade, the shape of the spur, and the number of flowers in each inflorescence. A detailed description, color photographs, and a provisional IUCN red list assessment are provided, and its geographical distribution, ecology, and morphological relationship with relevant similar species are discussed. Keywords: China, Flora of Yunnan, Impatiens parvisepala, Impatiens wutaishanensis, morphology
  
Impatiens wutaishanensis R.L. Liao & Lei Cai, sp. nov. Diagnosis: This species is similar to Impatiens parvisepala S.X. Yu & Y.T. Hou (2011: 57) (Hou et al. 2011) in its racemose inflorescences, its alternate and aggregated or subverticillate at stem apex arrangement leaf, and its yellow flowers, but it can be distinguished by its conspicuous 0.5–2.4 cm long petiole (vs. sub-sessile or sessile), its shorter 10–35 cm high plants (vs. 35–60 cm high), its 3.5–12 × 1.5–4 cm elliptic to lanceolate-oblong leaf blades with cuneate bases (vs. 12–20 × 3.5–6 cm obovate or obovate-lanceolate blade with attenuate bases), its slightly incurved or narrowing to incurved spur (vs. nearly straight spur), and its racemose inflorescences with up to 22 flowers (vs. 6–8 flowers per inflorescence). Etymology: The specific epithet ‘wutaishanensis’ refers to the type locality where the new species was found, located in the Wutaishan area of Jinping Fenshuiling National Nature Reserve, Jinping County, Southeast Yunnan, China. The Chinese name is given as “五台山凤仙花”. Rong-Li Liao, Lei Cai, Zhi-Yong Yu, Yue-Hua Wang and Wei-Bang Sun. 2021. Impatiens wutaishanensis (Balsaminaceae), A New Species from Southeast Yunnan, China. PhytoKeys. 176: 43-53. DOI: 10.3897/phytokeys.176.58825 Researchgate.net/publication/350927563_Impatiens_wutaishanensis_a_new_species_from_Southeast_Yunnan_Chi | ||||||
| 1:46a | [Ichthyology • 2022] Synchiropus flavistrigatus • A New Species of Dragonet (Teleostei: Callionymidae) from the tropical eastern Atlantic
Abstract A new species of dragonet, Synchiropus flavistrigatus sp. n. from the eastern tropical Atlantic, is described on the basis of 15 specimens. The new species is characterised within the subgenus Yerutius Whitley, 1931 by having 8 rays in the second dorsal fin (the last divided at its base), 8 anal-fin rays (the last divided at its base), 20–21 pectoral-fin rays, a single upper unbranched pectoral-fin ray, 1–2 curved dorsal points on the upper margin of the preopercular spine (additional to the main tip), length of first spine of first dorsal fin in male 12.8–15.9% of standard length, in female 14.5–15.4%; caudal-fin length in male 27.7–32.2% of standard length, in female 25.5–27.9%; length of last ray of second dorsal fin in male 18.2–21.6% of standard length; length of last ray of anal fin in male 14.6–17.1% of standard length, in female 13.5–15.1%; second dorsal fin and caudal fin with oblique yellow bars in both sexes; anal fin with a distal dark streak in both sexes. We also provide molecular information, based on two mitochondrial fragments (COI and 12s rRNA), that clearly supports the morphological results confirming that S. flavistrigatus sp. n. corresponds to a new species, distinct from S. phaeton (Günther, 1861). The new species is compared with other species of the subgenus. KEYWORDS: distribution, dragonets, fishes, Guinea-Bissau, new species   Synchiropus flavistrigatus sp. n. Guinea dragonet Diagnosis: A species of the subgenus Synchiropus (Yerutius) with 8 rays in the second dorsal fin, the last divided at its base, 8 anal-fin rays (the last divided at its base), 20–21 pectoral-fin rays, a single upper unbranched pectoral-fin ray, 1–2 curved dorsal points on the upper margin of the preopercular spine (additional to the main tip), length of first spine of first dorsal fin in male 12.8–15.9% of standard length, in female 14.5–15.4%; caudal-fin length in male 27.7–32.2% of standard length, in female 25.5–27.9%; length of last ray of second dorsal fin in male 18.2–21.6% of standard length; length of last ray of anal fin in male 14.6–17.1% of standard length, in female 13.5–15.1%; second dorsal fin and caudal fin with oblique yellow bars in both sexes; anal fin with a distal dark streak in both sexes. Distribution: The species is only from the tropical eastern Atlantic, distributed off the coast of West Africa between Guinea-Bissau and Angola (Fig. 3). It was collected at depths of 104–386 m. Etymology: Flavus (Latin) means yellow; strigatus (Latin) means striped. The name of this species refers to the yellow bars on the second dorsal fin. The name is an adjective in the male form when in the male genus Synchiropus. Ronald Fricke, Francesc Ordines and Sergio Ramírez-Amaro. 2022. Synchiropus flavistrigatus, A New Species of Dragonet from the tropical eastern Atlantic (Teleostei: Callionymidae). Integrative Systematics: Stuttgart Contributions to Natural History. 5(2); 87-101. DOI: 10.18476/2022.874590 Eine neue Leierfischart, Synchiropus flavistrigatus sp. n. aus dem tropischen Ostatlantik, wird anhand von 15 Exemplaren beschrieben. Die neue wird innerhalb der Untergattung Yerutius Whitley, 1931 durch folgende Merkmale charakterisiert: 8 Strahlen in der zweiten Rückenflosse (der letzte an der Basis geteilt), 8 Strahlen in der Afterflosse (der letzte an der Basis geteilt), 20–21 Brustflossenstrahlen, ein einziger Brustflossenstrahl oben unverzweigt, 1–2 gebogene Spitzen auf der dorsalen Seite des Präoperkulardorns (zusätzlich zur Hauptspitze), Länge des ersten Strahls der ersten Rückenflosse beim Männchen 12.8–15.9% der Standardlänge, beim Weibchen 14.5–15.4%; Schwanzflossenlänge beim Männchen 27.7–32.2% der Standardlänge, beim Weibchen 25.5–27.9%; Länge des letzten Strahls der zweiten Rückenflosse beim Männchen 18.2–21.6% der Standardlänge; Länge des letzten Strahls der Afterflosse beim Männchen 14.6–17.1% der Standardlänge, beim Weibchen 13.5–15.1%; zweite Rückenflosse und Schwanzflosse bei beiden Geschlechtern mit gelben Schrägstreifen; Afterflosse bei beiden Geschlechtern distal mit einem dunklen Streifen. Eine molekulare Untersuchung basierend auf zwei mitochondrialen Fragmenten (COI und 12s rRNA) unterstützt die morphologischen Befunde und bestätigt, daß es sich bei S. flavistrigatus sp. n. um eine neue Art handelt, die sich von S. phaeton (Günther, 1861) deutlich unterscheidet. Die neue Art wird mit anderen Arten der Untergattung verglichen. | ||||||
| 2:00a | [Entomology • 2022] Parastasia spinosa • A New Species and A New Synonym in the Scarab Genus Parastasia Westwood, 1841 (Coleoptera: Scarabaeidae: Rutelinae), with A Key to Species from Thailand
Abstract Ten species of the genus Parastasia Westwood, 1841 including a new species and a new record are recorded from Thailand. We here describe Parastasia spinosa Hongsuwong, Sanguansub & Jaitrong, new species from eastern Thailand based on a male specimen. Parastasia bimaculata (Guérin-Méneville, 1843) is recorded for the first time in Thailand. We confirm that Parastasia bigibbosa Nonfried, 1891 occurs in the country. Parastasia andamanae (Ghai, Chandra & Ramamurthy, 1988) is synonymized with P. bigibbosa. A key to the Thai Parastasia species is provided. Keywords: Coleoptera, Rutelini, Parastasiina, new synonym, Southeast Asia  Thitipong Hongsuwong, Sunisa Sanguansub and Weeyawat Jaitrong. 2022. A New Species and A New Synonym in the Scarab Genus Parastasia Westwood, 1841 (Coleoptera: Scarabaeidae: Rutelinae), with A Key to Species from Thailand. Zootaxa. 5205(6);547-562. DOI: 10.11646/zootaxa.5205.6.3 facebook.com/BeetleHub/posts/503786275131753 facebook.com/NHMThailand/posts/582465523889209 Researchgate.net/publication/365318154_A | ||||||
| 1:03p | [Paleontology • 2023] The Vertebrate Fossil Record from the Feliz Deserto Formation (Lower Cretaceous), Sergipe, NE Brazil: Paleoecological, Taphonomic, and Paleobiogeographic Implications
Highlights: • Increase of knowledge about Lower Cretaceous archosaurs from Brazil. • First crocodyliform fossil findings of the Feliz Deserto Formation. • Additional records of the oldest Gondwanan spinosaurine theropods. • Paleoenvironmental characterization of Canafístula 01 fossiliferous locality. Abstract The Feliz Deserto Formation (Berriasian–Valanginian, Sergipe-Alagoas Basin, NE Brazil) preserved some of the earliest South American fossil records of the rifting stages which resulted in the Gondwana supercontinent break-up during the Lower Cretaceous. Recently, the first spinosaurid theropod record of this formation was described, based on a tooth recovered from Canafístula 01 fossil locality in Sergipe State. We add herein twenty-seven isolated specimens to the fossil record of the Lower Cretaceous Feliz Deserto Formation. The new material includes seven isolated spinosaurid theropod teeth of the spinosaurine clade, as well as an indeterminate theropod preungual pedal phalanx. In addition, we describe an isolated crocodyliform osteoderm, as well as eighteen isolated teeth, some of which were taxonomically identified in three distinct morphotypes of neosuchian crocodyliforms. These findings expand the Gondwanan fossil record of both spinosaurine theropods and neosuchian crocodyliforms. Despite the fragmented nature of the specimens, these new fossils allowed the characterization of their general taphonomic features with low fluvial transport of bioclast prior to the burial. The depositional paleoenvironment of the Canafístula 01 locality is compatible with the deltaic system unit, that characterizes part of the Feliz Deserto Formation during the Lower Cretaceous. These fossil findings exemplify the co-occurrence of spinosaurids and more than one taxon of crocodyliforms in the deltaic-lacustrine paleoenvironment represented by the Feliz Deserto Formation. These new occurrences reinforce the fossiliferous potential of the Canafístula 01 locality, especially related to the paleovertebrates from the Lower Cretaceous of Brazil. Keywords: Berriasian–Valanginian, Mesoeucrocodylia, Paleovertebrates, Sergipe-Alagoas Basin, Spinosauridae, Theropoda  Mauro B.S. Lacerda, Marco B. de Andrade, Marcos A.F. Sales, Paulo R.L. Aragão, Fabiana S. Vieira, Jonathas S. Bittencourt and Alexandre Liparini. 2023. The Vertebrate Fossil Record from the Feliz Deserto Formation (Lower Cretaceous), Sergipe, NE Brazil: Paleoecological, Taphonomic, and Paleobiogeographic Implications. Cretaceous Research. In Press. DOI: 10.1016/j.cretres.2022.105463 |
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