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Monday, January 29th, 2024
| Time | Event | ||||
| 4:30a | [Crustacea • 2024] Booralana nickorum • A New Species of Deep-sea Booralana Bruce, 1986 (Isopoda: Cirolanidae) from The Bahamas, Western North Atlantic
Abstract Booralana nickorum sp. nov. is described from the deep-water slope of the Exuma Sound, The Bahamas, from depths of 540 to 560 metres. It is the fourth species to be assigned to the genus and the second species described from the Western North Atlantic. The species can be distinguished from Booralana tricarinata Camp and Heard, 1988 and the other species by the sub-triangular pleotelson and the uropodal exopod of mature males being far longer than endopod, with both rami extending well beyond the posterior margin of the pleotelson. Additionally, pleopods 3 and 4 lack a prominent angle at midpoint of ramus. Northeast Exuma Sound, Crustacea, Isopoda, Booralana, Atlantic Ocean  Booralana nickorum sp. nov. Oliver N. Shipley, Niel L. Bruce, Nicholas D. Higgs, Scott Rawlins, Duncan J. Irschick, Robert Gutierrez, Joshua K. Moyer, Mackellar Violich, Brendan S. Talwar, Eric V.C. Schneider, Nathan J. Robinson and Edward J. Brooks. 2024. A New Species of Deep-sea Booralana Bruce, 1986 (Crustacea: Isopoda: Cirolanidae) from The Bahamas, Western North Atlantic. Zootaxa. 5399(3); 254-264. DOI: 10.11646/zootaxa.5399.3.4 New Crustacean Discovered in Deep Waters of Bahamas The finding may help scientists better understand the vast biodiversity of the sea news.stonybrook.edu/university/new-crust | ||||
| 12:40p | [Herpetology • 2024] Pareas guanyinshanensis • A New Species of the Pareas hamptoni Complex (Serpentes: Pareidae) from Yunnan, China, with Confirmation of P. hamptoni sensu stricto in China
Abstract We describe a new species of the genus Pareas, based on three specimens collected from Guanyinshan Provincial Nature Reserve in Yuanyang County, Honghe Prefecture, Yunnan Province, China. The new species is distinguished from its congeners by one preocular, one postocular or postocular fused with subocular, loreal not bordering the orbit, one row enlarged vertebral scales, five rows keeled mid-dorsal scales at the middle of the body, 189–192 ventral scales and 72–89 subcaudal scales. The dorsal surfaces of the head and body are yellowish red or yellowish brown, and the belly and ventral surfaces of the head and tail are pinkish yellow or yellow with more or less small black spots. Phylogenetic analyses of mitochondrial DNA recovered the new species being the sister taxon to P. hamptoni sensu stricto. The genetic divergences between the new species and P. hamptoni sensu stricto were 4.2% in the Cyt b sequences and 5.0% in the ND4 sequences. In addition, based on specimens collected from Honghe and Wenshan prefectures, we confirmed that P. hamptoni sensu stricto is distributed in China. Keywords: Cyt b; morphology; ND4; Pareas guanyinshanensis sp. nov.; taxonomy Class Reptilia Laurenti, 1768 Order Squamata Oppel, 1811 Suborder Serpentes Linnaeus, 1758 Infraorder Caenophidia Hoffstetter, 1939 Family Pareidae Romer, 1956 Subfamily Pareinae Romer, 1956 Genus Pareas Wagler, 1830 Subgenus Eberhardtia Angel, 1920 Pareas guanyinshanensis sp. nov.
 Diagnosis. SVL 482–540 mm, TL/SVL 0.26–0.30; prefrontal bordering orbit; loreal not bordering orbit; 1 preocular; 1 postocular or postocular fused with subocular; 7–8 supralabials; 6–8 infralabials; infralabial not fused with chin-shield; 3 chin-shield pairs; dorsal scales in 15 rows throughout; 1 row of vertebral scales enlarged; scales not keeled at anterior part of body, 5 rows of mid-dorsal scales keeled at middle part of body, 5–7 rows of mid-dorsal scales keeled at posterior part of body; ventral scales 189–192; subcaudals 72–89, paired; precloacal plate undivided; maxillary teeth 4–5. Dorsal surface of head dark yellowish red or yellowish brown, with dense small black spots; dorsal surface of body yellowish red or yellowish brown; belly and ventral surfaces of head and tail pinkish yellow or yellow, with more or less small black spots; iris reddish yellow or yellow. Etymology. The specific epithet guanyinshanensis refers to Guanyinshan Provincial Nature Reserve [Yuanyang County, Honghe Prefecture, Yunnan Prov.], where the new species was found. Shuo Liu, Mingzhong Mo, Mei Li, Biao Li, Xiong Luo, Dingqi Rao and Song Li. 2024. Description of A New Species of the Pareas hamptoni Complex from Yunnan, China, with Confirmation of P. hamptoni Sensu Stricto in China (Squamata, Pareidae). Animals. 2024, 14(3), 421. DOI: 10.3390/ani14030421 Simple Summary: In this paper, a new Pareas species of the P. hamptoni complex is described from southern Yunnan Province, China, based on morphological and molecular evidence. Genetically, the new species is most closely related to P. hamptoni sensu stricto, for which we confirm the distribution in China. Morphologically, the new species can be distinguished from P. hamptoni sensu stricto and all other congeners by a combination of morphological characteristics. The discovery of the new species brings the total number of recognized species of the genus Pareas to 31, of which 25 occur in China. | ||||
| 12:52p | [Ornithology • 2023] Catharus arcanus, C. fuscater, C. mirabilis, etc. • Integrative Taxonomy reveals Hidden Diversity in the Catharus fuscater (Passeriformes: Turdidae) complex in Central and South America
Abstract We assembled datasets of genetic (genomic ultraconserved elements [UCEs], mtDNA) and phenotypic (morphology, voice) characters to address species limits and taxonomy in the slaty-backed nightingale-thrush Catharus fuscater (Passeriformes: Turdidae), a polytypic complex of songbirds with a broad montane distribution in Central and South America. We identified 10 allopatric populations that have been evolving independently for multiple glacial cycles. Genetic structure is broadly correlated with divergence in phenotypic characters, including plumage colour, iris colour, maxilla (bill) colour, and the acoustic structure of vocalizations (calls and songs). We propose an integrative taxonomic revision that recognizes seven species in the complex, including a newly described species from eastern Panama, and four subspecies, of which two are newly described. phylogenetics, Neotropics, nightingale-thrush, systematics    ... taxonomic revision splits the C. [fuscater] complex into 7 species, of which 1 is newly described, and 4 subspecies, of which 2 are newly described. We also proposed new English names for each species. They are … 1. Talamanca Nightingale-thrush (Catharus hellmayri) – monotypic – Northern mountains of Costa Rica (Rincón de la Vieja, Miravalles, Tenorio) to west-central Panama (Parque Nacional Santa Fé, Veraguas).  2. Darién Nightingale-thrush (Catharus arcanus, sp. nov.) – monotypic – E Panama, endemic to Serranía de Majé and Serranía del Darién, from Cerro Azul in the west, to Cerro Tacarcuna in the east 3. Pirre Nightingale-thrush (Catharus mirabilis) – monotypic – Endemic to Cerro Pirre, Darién province, E Panama (Photo: ML 242929041) 4. Cordilleran Nightingale-thrush (Catharus fuscater) – polytypic – (1) C. f. sanctaemartae, endemic to Sierra Nevada de Santa Marta, NE Colombia; (2) C. f. fuscater, Sierra de Perijá of Venezuela, N and E Andes of Colombia and Venezuela. (Photo: ML 206115721) 5. Trans-Andean Nightingale-thrush (Catharus berlepschi) – polytypic – (1) C. b. berlepschi, W Andes in Ecuador; (2) C. b. caniceps, W Andes in Ecuador, S to NW Peru; (3) C. b. nebulus, ssp. nov., E Peruvian Andes. (Photo: ML 38468741) 6. Antioquia Nightingale-thrush (Catharus opertaneus) – polytypic – (1) C. o. opertaneus, NW and Central Andes in Colombia, S to Napo, Ecuador; (2) C. o. tenebris, ssp. nov., Río Chinchipe watershed of N Peru and SE Ecuador 7. Cochabamba Nightingale-thrush (Catharus mentalis) – monotypic – S Peru, east of the Río Apurímac, E to Santa Cruz, Bolivia    Matthew R. Halley, Therese A. Catanach, John Klicka and Jason D. Weckstein. 2023. Integrative Taxonomy reveals Hidden Diversity in the Catharus fuscater (Passeriformes: Turdidae) complex in Central and South America. Zoological Journal of the Linnean Society. 199(1); 228–262. DOI: 10.1093/zoolinnean/zlad031  |
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