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Monday, April 15th, 2024
| Time | Event | ||||||
| 1:33p | [Gastropoda • 2024] Fenouilia undata • A New Species of Freshwater Snail of Fenouilia (Gastropoda: Pomatiopsidae) from northern Guangxi, China, based on morphological and DNA evidence
Abstract A new species of pomatiopsid freshwater snail, Fenouilia undata Chen & He, sp. nov., is described from Guangxi, China, based on morphological and molecular evidence. The new species can be distinguished from its congeners by the following combination of characters: shell with low, prosocline, rounded axial ribs and fine spiral striae, broader than high; aperture broader than shell height; radula with lateral teeth have only two or three faint, wavy ridges on inner side. A molecular analysis of partial mitochondrial COI and 16S DNA sequences supports the systematic position of the new taxon. Key words: Diversity, southern China, taxonomy, Triculinae
Family Pomatiopsidae Stimpson, 1865 Subfamily Pomatiopsinae Stimpson, 1865 Genus Fenouilia Heude, 1889 Fenouilia undata Chen & He, sp. nov. Diagnosis: Shell small, thin but solid, with rounded, rather flattened shape, and width greater than height; sculptured with low, rounded axial ribs and fine spiral striae; whorls 4–5; body whorl swollen and large. Suture shallow; umbilicus narrow, crescent-shaped or closed. Aperture large, its length greater than shell height. Operculum ovate, corneous, slightly transparent, yellowish. Etymology: From the Latin adjective undata (wavy or wave-like form). We suggest the Chinese common name 波浪龙骨螺.  Hui Chen, Yue Ming He, Chong Rui Wang and Da Pan. 2024. A New Species of Freshwater Snail of Fenouilia (Gastropoda, Pomatiopsidae) from northern Guangxi, China, based on morphological and DNA evidence. ZooKeys. 1196: 271-283. DOI: 10.3897/zookeys.1196.113856 | ||||||
| 1:38p | [Invertebrate • 2024] Perinereis kaustiana • A New Species (Annelida: Nereididae) for the Saudi Arabian Red Sea Region
Abstract Annelid biodiversity studies in the Red Sea are limited and integrative taxonomy is needed to accurately improve reference libraries in the region. As part of the bioblitz effort in Saudi Arabia to assess the invertebrate biodiversity in the northern Red Sea and Gulf of Aqaba, Perinereis specimens from intertidal marine and lagoon-like rocky environments were selected for an independent assessment, given the known taxonomic ambiguities in this genus. This study used an integrative approach, combining molecular with morphological and geographic data. Our results demonstrate that specimens found mainly in the Gulf of Aqaba are not only morphologically different from other five similar Perinereis Group I species reported in the region, but phylogenetic analysis using available COI sequences from GenBank revealed different molecular operational taxonomic units, suggesting an undescribed species, P. kaustiana sp. nov. The new species is genetically close and shares a similar paragnath pattern to the Indo-Pacific distributed P. helleri, in particular in Area III and Areas VII–VIII. Therefore, we suggest it may belong to the same species complex. However, P. kaustiana sp. nov. differs from the latter mainly in the shorter length of the postero-dorsal tentacular cirri, median parapodia with much longer dorsal Tentacular cirri, posteriormost parapodia with much wider and greatly expanded dorsal ligules. Additionally, two new records are reported for the Saudi Neom area belonging to P. damietta and P. suezensis, previously described only for the Egyptian coast (Suez Canal) and are distributed sympatrically with the new species, but apparently not sympatric with each other. Key words: Gulf of Aqaba, mtCOI-5P, NEOM, north-eastern Red Sea, Polychaeta, Saudi Arabia, taxonomy
 Family Nereididae Blainville, 1818 Genus Perinereis Kinberg, 1865 Perinereis kaustiana sp. nov. Diagnosis: Four pairs of tentacular cirri, postero-dorsal one reaching chaetiger 7–9; ratio of DPCL / HL = 3.6×. Eversible pharynx with one pair of dark brown curved jaws with seven or eight denticles; two longitudinal canals emerging from the pulp cavity, both in the mid-section of the jaw. Pharynx consisting of maxillary and oral rings with conical shaped paragnaths. Maxillary ring: Area I = 2 small paragnaths arranged in a longitudinal line. Area II = Cluster of 5–7 small paragnaths. Area III = central patch of nine small paragnaths, lateral patches with two small paragnaths each. Area IV = 13 small paragnaths arranged in wedge shape without any bars. Oral ring: Area V = a triangle of three large paragnaths. Area VI (a+b) = two narrow bar-shaped ... Etymology: The species designation pays tribute to the King Abdullah University of Science and Technology (KAUST) in Saudi Arabia, a globally recognized graduate-level research institution. This naming honours KAUST’s substantial and enduring contributions to marine science, particularly in advancing our understanding of the Red Sea over the course of more than a decade. Through its dedicated research efforts, KAUST has significantly enriched the scientific community’s knowledge of this unique marine environment.  Marcos A. L. Teixeira, Chloé Julie Loïs Fourreau, Juan Sempere-Valverde and Susana Carvalho. 2024. Two New Records and Description of A New Perinereis (Annelida, Nereididae) Species for the Saudi Arabian Red Sea Region. ZooKeys. 1196: 331-354. DOI: 10.3897/zookeys.1196.115260 | ||||||
| 2:08p | [Ichthyology • 2024] Chiloglanis carnatus • Hidden in the Riffles: A New Suckermouth Catfish (Siluriformes: Mochokidae: Chiloglanis) from the middle Zambezi River system, Zimbabwe
Abstract The recent surge in the discovery of hidden diversity within rheophilic taxa, particularly in West and East Africa, prompted a closer examination of the extent to which the current taxonomy may obscure the diversity of riffle-dwelling suckermouth catfishes in the genus Chiloglanis in southern Africa. Currently, the region comprises eight valid species within this genus. Seven of them have relatively narrow geographic distribution ranges except for C. neumanni, which is considered to be widely distributed, occurring from the Buzi River system in the south, and its northern limit being the eastward draining river systems in Tanzania. Recent surveys of the middle Zambezi River system revealed Chiloglanis specimens that were distinguishable from the known species of the genus from southern Africa. Integration of molecular and morphological data indicated that these specimens from the Mukwadzi River represent a new species to science, herein described as Chiloglanis carnatus Mutizwa, Bragança & Chakona, sp. nov. This species is readily distinguished from its southern African congeners by the possession of a distinctive extended dermal tissue covering the base of the dorsal fin and the possession of ten mandibular teeth (vs 8, 12, or 14 in the other taxa). Results from this study add to the growing evidence of a high level of undocumented diversity within riffle-dwelling taxa in southern Africa. Key words: Diversity, freshwater, integrative taxonomy, rheophilic taxa, southern Africa
Chiloglanis carnatus Mutizwa, Bragança & Chakona, sp. nov. Diagnosis: Chiloglanis carnatus sp. nov. is readily distinguished from its congeners in southern Africa (i.e. C. anoterus, C. bifurcus, C. emarginatus, C. fasciatus, C. paratus, C. pretoriae and C. swierstrai) by the presence of a dorsal fin that has a basal portion covered by a fleshy skin, a character which is absent in the other species. Chiloglanis carnatus possesses ten closely packed mandibular teeth, that further distinguishes it from C. fasciatus that has eight closely packed mandibular teeth; C. bifurcus and C. emarginatus that have ... Etymology: The specific epithet carnatus means fleshy, referring to the dermal tissue covering the base of the dorsal fin of some of the larger specimens of this species and the general robust body structure of this species compared to its regional congeners. Tadiwa I. Mutizwa, Wilbert T. Kadye, Pedro H. N. Bragança, Taurai Bere and Albert Chakona. 2024. Hidden in the Riffles: A New Suckermouth Catfish (Mochokidae, Chiloglanis) from the middle Zambezi River system, Zimbabwe. ZooKeys. 1197: 57-91. DOI: 10.3897/zookeys.1197.114679 | ||||||
| 2:15p | [Botany • 2024] Nepenthes kampalili (Nepenthaceae) • A New Species of Pitcher Plant from the eastern Mindanao Biodiversity Corridor, Philippines
Abstract A new species, restricted in the limestone karst bonsai forest of the eastern Mindanao biodiversity corridor, Nepenthes kampalili grouped under section Villosa is herein described with a taxonomic key leading to the species. It differs from N. peltata in having apically attached tendril to leaf (vs. peltate tendril-leaf attachment), densely pubescent ground pitchers (vs. glabrous), densely pubescent lid dorsal surface (vs. glabrous), and occasionally has 2 pitcher spurs arising from the midsection of the peristome neck posterior (vs. one unbranched pitcher spur). The species described is assessed as Critically Endangered facing threats of poaching and habitat loss without legislative protection and calls for immediate conservation efforts. Further, due to a lack of description for the rosette stems bearing ground pitchers and male inflorescence of N. candalaga the latter plant parts are described herein. Eudicots, Nepenthes, new species, eastern Mindanao biodiversity corridor, Davao de Oro    Nepenthes kampalili sp. nov. Lagunday and V.B. Amoroso Noel E. Lagunday, Aimanuelzon P. Yurong and Victor B. Amoroso. 2024. Nepenthes kampalili (Nepenthaceae), A New Species of Pitcher Plant from the eastern Mindanao Biodiversity Corridor, Philippines. Phytotaxa. 644(2); 163-170. DOI: 10.11646/phytotaxa.644.2.8  |
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