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Sunday, April 10th, 2022
| Time | Event | ||||||||
| 3:34p | [Herpetology • 2022] Phyllopezus diamantino & P. selmae • Two New Species of Geckos of the Genus Phyllopezus Peters, 1878 (Gekkota: Phyllodactylidae) from northeastern Brazil
Abstract We describe two new species of Brazilian geckos of the genus Phyllopezus based on morphological and molecular data. The first species is currently known from a relictual Cerrado enclave—“campos rupestres”, in the mountains of the Serra do Espinhaço in the state of Bahia. The second species is known from northeastern Atlantic Forest and transitional areas with Caatinga biome in the state of Alagoas. The two new species are sister taxa and together are the sister clade to the remaining species in the Phyllopezus pollicaris species complex. These new species can be morphologically distinguished from their congeners by meristic and morphometric characters, in addition to color pattern and genetic differentiation. Keywords: Reptilia, cryptic diversity, integrative taxonomy, lizards, morphological data, molecular phylogeny
 Marcos J. M. Dubeux, Ubiratan Gonçalves, Cristiane N. S. Palmeira, Pedro M. S. Nunes, José Cassimiro, Tony Gamble, Fernanda P. Werneck, Miguel T. Rodrigues and Tamí Mott. 2022. Two New Species of Geckos of the Genus Phyllopezus Peters, 1878 (Squamata: Gekkota: Phyllodactylidae) from northeastern Brazil. Zootaxa. 5120(3); 345-372. DOI: 10.11646/zootaxa.5120.3.3  | ||||||||
| 3:35p | [Ichthyology • 2022] Eigenmannia bumba, E. cacuria & E. robsoni • Three New Species of Eigenmannia (Gymnotiformes: Sternopygidae) from the rio Mearim and rio Parnaíba basins, Northeastern Brazil
Abstract Three new species of Eigenmannia belonging to the E. trilineata species-group are described. The first species is described from rio Mearim basin and can be diagnosed by lateral line stripe restricted to last two thirds of body, superior midlateral stripe present, 176–205 anal-fin rays, 10–15 scales rows above lateral line, 109–125 lateral line scales, 19–23 premaxillary teeth, 20–29 dentary teeth, 6–10 endopterygoid teeth, and 13–14 precaudal vertebrae. The second species is described from upper rio Parnaíba, and can be diagnosed by lateral line stripe restricted to last two-thirds of body, ii,11–13 pectoral-fin rays, 180–196 anal-fin rays, 12–15 scales rows above lateral line, 10–14 premaxillary teeth, 15–21 dentary teeth, 8–10 endopterygoid teeth, and 14 precaudal vertebrae. The third species is widespread in rio Parnaíba basin, and can be diagnosed by absence of lateral line stripe, absence of superior midlateral stripe, 182–228 anal-fin rays, 12–15 scales rows above lateral line, 107–131 lateral line scales, 32–34 premaxillary teeth, 35–44 dentary teeth, 9–12 endopterygoid teeth, and 13 precaudal vertebrae. A dichotomous key and the conservation status for the three species are provided. Keywords: Electric fishes, Eigenmannia trilineata species-group, Identification key, Taxonomy.
Eigenmannia bumba, new species Etymology. The epithet “bumba” is in reference to “bumba meu boi” or “boi-bumbá”, a folklore character in Northern Brazil. A noun in apposition. Eigenmannia cacuria, new species Etymology. The epithet “cacuria” is in reference to the “cacuriá”, a typical dance in the state of Maranhão, where the holotype was collected. A noun in apposition.
Eigenmannia robsoni, new species Etymology. The epithet “robsoni” is in honor of Robson Tamar da Costa Ramos, ichthyologist, for his contributions to studies of the Caatinga ecoregion, especially in the Parnaíba river basin. A patronym. Guilherme Moreira Dutra, Telton Pedro Anselmo Ramos and Naércio Aquino Menezes. 2022. Description of Three New Species of Eigenmannia (Gymnotiformes: Sternopygidae) from the rio Mearim and rio Parnaíba basins, Northeastern Brazil. Neotrop Ichthyol. 20(1);e210117. DOI: 10.1590/1982-0224-2021-0117   | ||||||||
| 3:35p | [Herpetology • 2022] Bauerius gen. nov. • Systematic Revision of Afrogecko ansorgii (Boulenger, 1907) (Sauria: Gekkonidae) from western Angola
Abstract Here we provide the first phylogenetic analysis that include Afrogecko ansorgii and a detailed morphological comparison with other species of leaf-toed geckos. For this purpose, we used two mitochondrial (16S, ND2) and four nuclear (RAG1, RAG2, CMOS, PDC) genes to produce a robust phylogenetic reconstruction. This allowed us to show that A. ansorgii is not related as previously believed to circum-Indian Ocean leaf-toed geckos and is rather more closely related to other Malagasy leaf-toed geckos. Additionally, we explore and compare osteological variation in A. ansorgii skulls through High Resolution X-ray Computed Tomography with previously published material. This allowed us to describe herein a new genus, Bauerius gen. nov., and additionally provide a detailed redescription of the species (including the first description of male material), supplementing the limited original description and type series, which consisted of only two females. Keywords: Reptilia, Leaf-toed gecko, taxonomy, CT-scan, skull, osteology, phylogeny --novataxa_2022-Lobon-Rovira_Conradie___@JavierLobonRovira_.jpg) --novataxa_2022-Lobon-Rovira_Conradie___@JavierLobonRovira.jpg) --novataxa_2022-Lobon-Rovira_Conradie___@JavierLobonRovira.jpg) Bauerius ansorgii (Boulenger, 1907) --novataxa_2022-Lobon-Rovira_Conradie___@JavierLobonRovira.jpg) --novataxa_2022-Lobon-Rovira_Conradie___@JavierLobonRovira.jpg) Javier Lobon-Rovira, Werner Conradie, Pedro Vaz Pinto, Chad Keates, Shelley Edwards, Anton du Plessis and William R. Branch. 2022. Systematic Revision of Afrogecko ansorgii (Boulenger, 1907) (Sauria: Gekkonidae) from western Angola. Zootaxa. 5124(4); 401-430. DOI: 10.11646/zootaxa.5124.4.1 --novataxa_2022-Lobon-Rovira_Conradie___@JavierLobonRovira.jpg) Vaz Pinto, P., Luis Veríssimo, L. and Branch, W.R. 2019. Hiding in the Bushes for 110 years: Rediscovery of an iconic Angolan gecko (Afrogecko ansorgii Boulenger, 1907, Sauria: Gekkonidae). Amphibian & Reptile Conservation. 13 (2), 29–41. amphibian-reptile-conservation.org/pdfs/V | ||||||||
| 3:36p | [Ichthyology • 2022] Gobiobotia lii • A New Species of Gudgeon (Teleostei, Gobionidae) from the middle Chang-Jiang Basin, central China
Abstract Gobiobotia lii is described from the Qi-Shui, a stream tributary on the northern bank of the middle Chang-Jiang mainstem in Hubei Province and Lake Dongting in Hunan Province, central China. The new species is distinguished from all other congeneric species by possessing a combination of the following characters: a naked region of the abdomen adjacent to the ventral mid-line extending to the vent and the vertebral count (4+31–32). The validity of G. lii is confirmed by its monophyletic nature recovered in a phylogenetic analysis, based on the cyt b gene and its significant sequence divergence with sampled congeneric species. Critical notes were given on the species recognition of historically documented eight-barbel gudgeons co-existing in Lake Dongting. Gobiobotia nicholsi Bănărescu & Nalbant, 1966 should be a valid species distinct from G. filifer (Garman, 1912) and both G. pappenheimi Kreyenberg, 1911 and G. boulengeri (=Xenophysogobio boulengeri (Tchang, 1929)) have an erroneous record from the Lake. Key Words: cyt b gene, new taxon, morphology, species identification, taxonomy
Gobiobotia lii sp. nov. Gobiobotia pappenheimi Chen & Cao, 1977: 556 (Lake Dongting), Synonym Diagnosis: Gobiobotia lii is distinct from all other congeneric species, except G. brevirostris Chen & Cao, 1977, G. homalopteroidea Rendahl, 1933, G. jiangxiensis Zhang & Liu, 1995 and G. pappenheimi Kreyenberg, 1911, in having a naked region of the abdomen adjacent to the ventral mid-line extending to or beyond the vent (vs. to or away from the pelvic-fin base) (Figs 2c, 3). It differs from these four species in having 4+31–32 (vs. 4+33–37) vertebrae. The new species shares with G. homalopteroidea and G. pappenheimi the presence of smaller eyes (diameter less than the interorbital width), maxillary barbels longer than the eye diameter and the third pair of longer mental barbels extending to the pectoral-fin insertion, these three characters separating them from G. brevirostris and G. jiangxiensis. The new species further differs from G. homalopteroidea in possessing a smaller (vs. larger) naked region of the abdomen adjacent to the ventral mid-line extending to the anus (vs. to the anal-fin origin) and the eye diameter 20.0–25.8% of HL (vs. 10.8–13.9%); and from G. pappenheimi in having pectoral fins extending away from (vs. beyond) the pelvic-fin insertion, the second branched pectoral-fin ray not prolonged (vs. prolonged) and a longer (vs. shorter) snout than the post-orbital length. Etymology: The specific epithet is named after Shi-Zhen Li, a native of Qichun County where the holotype and partial paratypes were caught. Li was a well-known medical scientist in the Ming Dynasty, who compiled “Compendium of Materia Medica” (‘本草纲目’ in Chinese) - one of the most valuable pieces of literature of traditional Chinese medicine. He had a typical image as an old man with a long white dense beard, just like the eight-barbel gudgeon. The common Chinese name ‘李氏鳅鮀’ in here proposed for Gobiobotia lii. Xiao Chen, Man Wang, Liang Cao and E. Zhang. 2022. Gobiobotia lii, A New Species of Gudgeon (Teleostei, Gobionidae) from the middle Chang-Jiang Basin, central China, with Notes on the Validity of G. nicholsi Bănărescu & Nalbant, 1966. Zoosystematics and Evolution. 98(1): 93-107. DOI: 10.3897/zse.98.80547 | ||||||||
| 6:27p | [Botany • 2021] Impatiens rostrata (Balsaminaceae, sect. Semeiocardium) • A New Species from Khammouane Province, Laos, and Nine New Records
ABSTRACT One new species, Impatiens rostrata Souvann. & Lanors., is described and illustrated, and nine new records of Impatiens for Laos are reported. A lectotype of Impatiens rubrostriata Hook.f. is designated, and two new synonyms are made. Keywords: Indonesia, Laos, lectotype, limestone flora, new distribution, new species, taxonomy
 
Impatiens rostrata Souvann. & Lanors., sp. nov. Impatiens sect. Semeiocardium (Zoll.) S.X.Yu & Wei Wang, Cladistics 32, 2: 191 (2015). Similar to Impatiens bonii Hook.f. in having connate lateral united petals and 4-carpellate ovary, and in overall flower shape, but differs in having leaf bases cordate to cuneate (not rounded), flower yellow with white lobe apex, red spots inside (not red patch inside with violet lobe apex), lateral sepals 4 (not 2), simple spur (not bifid), dorsal petals oblong-elliptic (not obcordate), seeds ovoid-oblong (not globose). Etymology. The epithet is from the Latin, rostratus, meaning ‘beaked’, referring to the beak-shaped spur.
New records: Impatiens damrongii Shimizu, Acta Phytotax. Geobot. 24: 38 (1969); Impatiens drepanophora Hook.f., Rec. Bot. Surv. India 4: 17 (1905); Impatiens kamtilongensis Toppin, Bull. Misc. Inform. Kew 1920: 356 (1920); Impatiens kerriae Craib, Bull. Misc. Inform. Kew 1926, 4: 161 (1926); Impatiens lobbiana Turcz., Bull. Soc. Imp. Naturalistes Moscou 32, 1: 270 (1859); Impatiens napoensis Y.L.Chen, Acta Phytotax. Sin. 38, 6: 557, f. 1 (2000); Impatiens parishii Hook.f., Fl. Brit. India 1: 456 (1875); Impatiens rubrostriata Hook.f., Hooker’s Icon. Pl. 30: pl. 2954 (1911); Impatiens tigrina Suksathan & Triboun, Gard. Bull. Singapore 61, 1: 177 (2009). K. Souvannakhoummane, M. F. Newman, S. Lanorsavanh and P. Suksathan. 2021. Impatiens rostrata (Balsaminaceae), A New Species from Khammouane Province, Laos, and Nine New Records. Edinburgh Journal of Botany. 78; DOI: 10.24823/EJB.2021.362   | ||||||||
| 6:27p | [Herpetology • 2022] Craugastor bitonium, C. polaclavus, C. rubinus, etc. • Miniaturization in Direct-Developing Frogs of the Genus Craugastor (Anura: Craugastoridae) from Mexico with the Description of Six New Species
Abstract The Craugastor mexicanus series (Anura: Craugastoridae) includes six species of direct-developing frogs that occur in Mexico and Guatemala. Notably, two of these species have small adult body sizes (<18 mm snout to vent length) and several have intraspecific polymorphism in color pattern. Using a geographic sampling focused on eastern Mexico (the location of most type localities), we conducted a molecular phylogenetic analysis of two mitochondrial (12S, 16S) and two nuclear (RAG1, TYR) gene fragments. This analysis revealed two widespread species, C. mexicanus and C. pygmaeus, along with evidence of multiple undescribed taxa from the states of Oaxaca, Mexico, Guerrero, and Jalisco. Interestingly, the widespread species have stratified geographic distributions with the larger bodied clade restricted to high elevations and the smaller bodied clade to low elevations. We also identify regions of Guerrero and Oaxaca where multiple species co-occur. To reevaluate the quality of characters that have been previously used to diagnose species, we tested for heterochrony and sexual dimorphism using microcomputed tomography and linear measurements. We found evidence for paedomorphosis as the mechanism of miniaturization in small-bodied taxa. Linear measurements confirmed that tympanum and body size are sexually dimorphic traits in both small- and large-bodied species. We used this enhanced understanding of morphological variation in the group to describe six new species. Despite this progress, we suspect that additional species await discovery, particularly in western Mexico and east of the Isthmus of Tehuantepec where our sampling efforts were limited. KEYWORDS: Brachycephaloidea, Craugastor bitonium sp. nov, Craugastor candelariensis sp. nov, Craugastor cueyatl sp. nov, Craugastor polaclavus sp. nov, Craugastor portilloensis sp. nov, Craugastor rubinus sp. nov, Terraranae Craugastor bitonium sp. nov. from Guerrero Craugastor candelariensis sp. nov. from Oaxaca. Named for the municipality of Candelaria, but also for their appearance in preservative, as if someone were shining a candle through them.  Craugastor cueyatl sp. nov. from Estado de Mexico. Named with the word for frog in Nahuatl, an Aztec language that has been spoken in the Valley of Mexico since the 7th century, a region that includes the type locality of the species. Craugastor polaclavus sp. nov. from Oaxaca. The small (pola-) warty (-clavus) frog... because it's small and warty Craugastor portilloensis sp. nov. from Oaxaca. Mexico's smallest frog at only 11mm long. One of the smallest #frogs in the world! Named after the town of Portillo del Rayo where the species is found.  Craugastor rubinus sp. nov. from Jalisco. The name is from the Latin for ruby, inspired by the garnet mines found near the type locality. Tom J.M. Jameson, Jeffrey W. Streicher, Luigi Manuelli, Jason J. Head and Eric N. Smith. 2022. Miniaturization in Direct-Developing Frogs from Mexico with the Description of Six New Species. Herpetological Monographs. 36(1); 1-48. DOI: 10.1655/0733-1347-36.1.1 Researchgate.net/publication/359737663_M All these species are endemic to #Mexico and are part of the genus Craugastor, a group of terrestrial direct-developing frogs (no tadpoles, perfect miniature adults straight from the egg). These little fellas live in the leaf litter throughout the forests of Mexico.  | ||||||||
| 6:29p | [Mollusca • 2022] Convergent Evolution of Amphidromus-like Colourful Arboreal Snails (Helicoidei: Camaenidae: Bradybaeninae) and Phylogenetic Relationship of East Asian Camaenids, with Description of A New Aegistohadra Species
Abstract East Asian terrestrial snails of the family Camaenidae are diverse in terms of genus and species numbers, shell morphology and mode of living. This family also includes colourful conical arboreal snails that traditionally have been assigned to the genus Amphidromus. Yet, the present study shows that, despite their deceiving conchological similarity, some of these East Asian arboreal snails do not belong to the genus Amphidromus in the subfamily Camaeninae. The presence of a dart complex comprising a mucous gland, a dart sac, an accessory sac and a proximal accessory sac, along with a pronounced penial caecum and molecular phylogenetic analyses revealed that former “Amphidromus” dautzenbergi, “A.” roemeri and “Camaena” mirifica, and one additional new species belong to Aegistohadra in the subfamily Bradybaeninae. Aegistohadra dautzenbergi, comb. nov. and Aegistohadra roemeri, comb. nov. are more conical with colourful spiral bands, whereas Aegistohadra mirifica, comb. nov. and Aegistohadra zhangdanae, sp. nov. are heliciform to conical with colourful, variegated spiral and transverse banding patterns. DNA sequence analyses also revealed that each variety of Ae. dautzenbergi could not be differentiated by mitochondrial (COI and 16S rRNA) gene fragments. The phylogenetic position of Aegistohadra within the East Asian camaenids revealed that the similar appearance in shell morphology, microhabitat use and diet to arboreal snails in the genus Amphidromus is homoplastic. Moreover, the presence/absence of a dart complex is also homoplastic and is unsuitable for suprageneric classification. In contrast, the presence of a flagellum and a penial caecum is more informative for the suprageneric classification. Keywords: Aegistohadra, Amphidromus, Camaenidae, convergent evolution, East Asia, homoplasy, suprageneric classification, tree snail.
     Parin Jirapatrasilp, Chih-Wei Huang, Chung-Chi Hwang, Chirasak Sutcharit and Chi-Tse Lee. 2022. Convergent Evolution of Amphidromus-like Colourful Arboreal Snails and Phylogenetic Relationship of East Asian Camaenids, with Description of A New Aegistohadra Species (Helicoidei, Camaenidae, Bradybaeninae). Invertebrate Systematics. 36(3); 244-290. DOI: 10.1071/IS21015 |
--novataxa_2022-Lobon-Rovira_Conradie___@JavierLobonRovira.jpg)
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