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Sunday, October 23rd, 2022
| Time | Event | ||||||
| 2:29a | [Herpetology • 2022] Pristimantis omarrhynchus & P. miltongallardoi • Two New Species of the Pristimantis boulengeri Group (Anura: Strabomantidae) from the upper Napo River Basin, Ecuador
Abstract Through the combination of morphological and phylogenetic evidence, we describe two species of Pristimantis from the upper basin of the Napo River. Both species have well-defined dorsolateral folds, a conical tubercle on the eyelid, a papilla on the tip of the snout, weakly expanded discs, and small size (female SVL < 28.2 mm). Pristimantis omarrhynchus sp. nov. differs from its sister species, Pristimantis miltongallardoi sp. nov., by the absence of iridophores on the belly, subacuminate snout in dorsal view, and narrow digits. Our phylogeny and morphological evidence, are conclusive in assigning them to the Pristimantis boulengeri species group, closely related to P. boulengeri, P. cryptopictus, P. dorspictus, and P. brevifrons. The new species are the first reported for the P. boulengeri group in Ecuador and the Amazon basin. We also comment on the correct identity of GenBank sequences previously assigned to P. thymelensis and P. myersi. Keywords: Andes, Phylogenetics, Call, Pristimantis omarrhynchus sp. nov., Pristimantis miltongallardoi sp. nov., Systematics, Terrarana     Patricia Bejarano-Muñoz, Santiago R. Ron, María José Navarrete and Mario H. Yánez-Muñoz. 2022. Dos nuevas especies del grupo Pristimantis boulengeri (Anura: Strabomantidae) de la cuenca alta del río Napo, Ecuador [Two New Species of the Pristimantis boulengeri Group (Anura: Strabomantidae) from the upper Napo River Basin, Ecuador]. Cuadernos de Herpetología. 36(2); http://ojs.aha.org.ar/index.php/CdH/arti twitter.com/fpayala2000/status/157839307  | ||||||
| 2:30a | [Crustacea • 2022] Caridina occidentalis • West Side Story: A Molecular and Morphological Study of Caridina longicarpus Roux, 1926 (Decapoda: Caridea: Atyidae) from New Caledonia reveals A New Species
Numerous specimens of freshwater shrimps identified as Caridina longicarpus Roux, 1926 were recently collected from New Caledonia. Following an integrative taxonomy approach, they were morphologically and genetically studied. Results of a 16S mtDNA analysis showed that the specimens initially identified as C. longicarpus were distributed in two geographically structured clades. Morphological study showed that the shrimps found in rivers draining to the east coast of the island belonged to C. longicarpus sensu stricto, whereas those from rivers draining to the west coast belonged to a new species, here described as Caridina occidentalis n. sp. Detailed redescription of C. longicarpus is provided and a lectotype is designated. The existence of both species in allopatry could be explained by local biogeographical factors such as the topography of the island or oceanic circulation impacting the dispersal of larvae during the planktonic stage. KEYWORDS: freshwater shrimp, Amphidromy, New Caledonia, integrative taxonomy, morphology, 16S, new species  Caridina longicarpus Roux, 1926  Caridina occidentalis n. sp. Valentin DE MAZANCOURT, Julien BRÉTHIOT, Gérard MARQUET and Philippe KEITH. 2022. West Side Story: A Molecular and Morphological Study of Caridina longicarpus Roux, 1926 (Decapoda, Caridea, Atyidae) from New Caledonia reveals A New Species. ZOOSYSTEMA. 44(18); 463-474. sciencepress.mnhn.fr/en/periodiques/zoos | ||||||
| 2:31a | [Botany • 2021] Impatiens vaiyapurii (Balsaminaceae) • A New Species from the Eastern Ghats of Tamil Nadu, India
Impatiens vaiyapurii is described as a new species from the Kolli hills of Eastern Ghats in Tamil Nadu, India. The species shares several morphological characters with I. dasysperma Wight, which is endemic to the southern Western Ghats
Impatiens vaiyapurii Karupp. & V. Ravich. sp. nov. Impatiens flaccida Arn. Sensu Mathew in Flora of Tamil Nadu Carnatic. 1.196.1983. Figs. 1 & 2 Impatiens vaiyapurii is morphologically similar to I. dasysperma, which is endemic to the Western Ghats. But it differs by its habitat of deciduous forests below 1000 m, leaves linear-elliptic, crowded on the tip of stem, petiole to 2–5 cm long, flowers white 3–3.5 cm across, dorsal petal broadly obcordate, cuneate at base, slightly divided, apical projection up to 1 cm long; lateral petals slightly lobed, notch without apical projection, lower petals obovate, cuneate at base, not divided at apex, without apical projection, spur to 5 cm long, glabrous, tip curved backward, pedicel up to 6 cm long, glabrous, capsule ovate, finely tomentose; seeds up to 20 per capsule, pale brownish with dome-like hair throughout (Table 1). Distribution: So far known only from Kolli Hills of Namakkal District and Shevaroy Hills of Salem District in Eastern Ghats of Tamil Nadu, South India. Etymology: The new species is named in honour of Dr. M. Vaiyapuri, a renowned botany teacher in P.Velur, Namakkal district and environmentalist in recognition of his valuable contributions to plant taxonomy Karuppusamy S., Ravichandran V. and Uday Kumar M. 2021. A New Species of Impatiens (Balsaminaceae) from the Eastern Ghats of Tamil Nadu, India. Species. 22(70); 342-347. | ||||||
| 2:31a | [Herpetology • 2022] Afrixalus phantasma & A. lacustris • Systematics of the Central African Spiny Reed Frog Afrixalus laevis (Anura: Hyperoliidae), with the Description of Two New Species from the Albertine Rift
Abstract The geographically widespread species Afrixalus laevis (Anura: Hyperoliidae) currently has a disjunct distribution in western Central Africa (Cameroon, Equatorial Guinea, Gabon, and possibly adjacent countries) and the area in and near the Albertine Rift in eastern Democratic Republic of the Congo and neighboring countries. At least two herpetologists have previously suggested that these disjunct populations represent distinct species, and herein, we utilize an integrative taxonomic approach with molecular and morphological data to reconcile the taxonomy of these spiny reed frogs. We sequenced 1554 base pairs of the 16S and RAG1 genes from 34 samples of A. laevis and one sample of A. orophilus (sympatric with eastern populations of A. laevis), and combined these data with previously sequenced GenBank Afrixalus samples via the bioinformatics toolkit SuperCRUNCH. Phylogenetic trees, dated phylogenetic analyses, and species-delimitation analyses were generated with RAxML, BEAST, and BPP, respectively. Eleven mensural characters were taken from multiple specimens of A. laevis and A. orophilus, and compared with paired t-tests and analyses of covariance. These combined results suggested populations of A. laevis in western Central Africa (Cameroon and Bioko Island, Equatorial Guinea) represent one species, whereas populations from the Albertine Rift and nearby forests represent two undescribed taxa that are sister to A. dorsimaculatus. The two new species (A. lacustris sp. nov. and A. phantasma sp. nov.) are distinguished by our phylogenetic and species-delimitation analyses, significant differences in several mensural characters, qualitative morphological differences, and by their non-overlapping elevational distribution. Keywords: Amphibia, Afromontane, Endemism, Conservation, Species Delimitation, Phylogeny  
Afrixalus phantasma Dehling, Greenbaum, Kusamba & Portik sp. nov. Ghost Spiny Reed Frog Etymology. The species epithet derives from the Greek noun φάντασμα (phántasma), meaning ghost or phantom, in allusion to the coloration and general appearance of the new species. The epithet is used as an invariable noun in apposition. Afrixalus lacustris Greenbaum, Dehling, Kusamba & Portik sp. nov. Great Lakes Spiny Reed Frog Etymology. The species epithet is the Latin adjective “ lacustris,” meaning belonging to or dwelling in lakes; in allusion to the distribution of the new species in the region of the African Great Lakes.  Eli Greenbaum, Daniel M. Portik, Kaitlin E. Allen, Eugene R. Vaughan, Gabriel Badjedjea, Michael F. Barej, Mathias Behangana, Nancy Conkey, Bonny Dumbo, Legrand N. Gonwouo, Mareike Hirschfeld, Daniel F. Hughes, Félix Igunzi, Chifundera Kusamba, Wilber Lukwago, Franck M. Masudi, Johannes Penner, Jesús M. Reyes, Mark-Oliver Rödel, Corey E. Roelke, Soraya Romero and J. Maximilian Dehling. 2022. Systematics of the Central African Spiny Reed Frog Afrixalus laevis (Anura: Hyperoliidae), with the Description of Two New Species from the Albertine Rift. Zootaxa. 5174(3); 201-232. DOI: 10.11646/zootaxa.5174.3.1 twitter.com/mindje/status/15573211947975 Researchgate.net/publication/362604907_S   | ||||||
| 3:16a | [Herpetology • 2022] Brachycephalus clarissae • A New Species of Brachycephalus (Anura: Brachycephalidae) from A Montane Atlantic Rainforest of Southeastern Brazil, with A Reappraisal of the Species Groups in the Genus
Abstract Toadlets of the genus Brachycephalus are endemic to the Brazilian Atlantic Rainforest, where they inhabit the forest floor leaf litter. These miniaturized frogs are commonly known as flea-toads or pumpkin toadlets depending on their phenotypic characteristics. Herein, we describe a new species of the genus Brachycephalus from montane forests (970–1200 m a.s.l.) in the Serra dos Órgãos mountain range, in the state of Rio de Janeiro, southeastern Brazil. The new species is characterized by having a small body size within the genus (maximum SVL 9.6 mm in males and 10.9 mm in females), a noticeably granular dorsum with an X-shaped mark and a median row of small yellow tubercles, a yellow background color with red blotches on ventral surfaces, a lateral dark brown stripe, and the absence of hyperossification in the skeleton. Morphological features of the new taxon resemble those of both flea-toads and pumpkin toadlets. Based on our molecular phylogenetic hypothesis, the new species is recovered sister to the clade formed by the monophyletic B. ephippium and B. vertebralis species groups (previously considered as lineages of a more inclusive B. ephippium group). We also reinforce the suggestion of not using the name B. didactylus group because it does not represent a monophyletic taxon. The new species probably has an extremely restricted geographic distribution, and its discovery reinforces the importance of the Serra dos Órgãos mountains for the conservation of the Atlantic Rainforest anuran biodiversity.
Brachycephalus clarissae, new species Etymology.—The specific name honors our friend and colleague Clarissa Canedo, a Brazilian herpetologist who has been contributing to the knowledge of the Neotropical anurofauna in the past 20 years, including the systematics and evolution of brachycephaloid frogs. Manuella Folly, Davor Vrcibradic, Carla C. Siqueira, Carlos F. D. Rocha, Alessandra S. Machado, Ricardo T. Lopes, and José P. Pombal Jr. 2022. A New Species of Brachycephalus (Anura, Brachycephalidae) from A Montane Atlantic Rainforest of Southeastern Brazil, with a Reappraisal of the Species Groups in the Genus. Ichthyology & Herpetology. 110(3); 585-601. DOI: 10.1643/h2020144 | ||||||
| 11:04a | [Herpetology • 2022] Pseudoeurycea jaguar • A New Arboreal Pseudoeurycea (Caudata: Plethodontidae) from the Sierra de Zongolica, Veracruz, Mexico
Abstract We describe a new species of plethodontid salamander of the genus Pseudoeurycea from the Sierra de Zongolica, Veracruz, Mexico. The new species is distinguished from all other species in the genus by morphological and genetic features and by coloration. Based on a mtDNA phylogeny, the new species belongs to the Pseudoeurycea juarezi group and is most closely related to P. ruficauda from the Sierra Mazateca in northern Oaxaca. The newly described salamander increases the number of species of plethodontid salamanders from Veracruz to 43 and those recognized from Mexico to 140. Keywords: Bolitoglossini, juarezi group, phylogeny, Pseudoeurycea jaguar sp. nov., salamander
Pseudoeurycea jaguar sp. nov. Pseudoeurycea sp. – Cázares-Hernández et al. 2021. Suggested English name: Jaguar Salamander. Suggested Spanish name: Tlaconete jaguar. Diagnosis: Assigned to the genus Pseudoeurycea based on the presence of a sublingual fold, comparatively short fifth toe compared to the fourth, limited foot webbing, relatively large size, and mitochondrial DNA sequences. Morphologically, we distinguish the new species from the other salamanders that occur in the region and from the others of the genus Pseudoeurycea based on size of the body and tail, limb length, digit shape, shape and size of the head, and especially by external coloration (dorsal and ventral coloration of head, body and tail). Pseudoeurycea jaguar is easily distinguished from the other species of the genus Pseudoeurycea by its unique color pattern (Figs 1, 4). ... Etymology: The specific epithet jaguar is a noun in apposition and refers to the similarity between the dorsal color pattern of the salamander and that of the jaguar (Panthera onca). In the last three years the presence of this endangered feline has been recorded in some places in the Sierra de Zongolica and it seems appropriate to honor this emblematic species in the region.  Erasmo Cázares-Hernández, H. David Jimeno-Sevilla, Sean M. Rovito, Marco Antonio López-Luna and Luis Canseco-Márquez. 2022. A New Arboreal Pseudoeurycea (Caudata: Plethodontidae) from the Sierra de Zongolica, Veracruz, Mexico. Vertebrate Zoology. 72: 937-950. DOI: 10.3897/vz.72.e87275 Resumen: Se describe una nueva especie de salamandra pletodóntida del género Pseudoeurycea de la Sierra de Zongolica en el Estado de Veracruz. La nueva especie se distingue de todas las especies del género por características morfológicas y genéticas y patrón de coloración. Con base en la filogenia de ADN mitocondrial, la nueva especie pertenece al grupo P. juarezi y se encuentra más cercanamente relacionada con P. ruficauda de la Sierra Mazateca en el norte de Oaxaca. La descripción de esta nueva salamandra, incrementa el número de especies de salamandras pletodóntidas de Veracruz a 43 y 140 reconocidas para Mexico. |
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