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Tuesday, May 17th, 2022
| Time | Event | ||||
| 2:07a | [Ichthyology • 2022] Poecilocharax callipterus & P. rhizophilus • The Monophyly of Crenuchinae and Description of Two New Species of Poecilocharax (Characiformes: Crenuchidae) based on Phenotypic and Genotypic Evidence
Abstract Crenuchinae is a subfamily of the fish family Crenuchidae distributed in the Amazon Basin with pronounced sexual dimorphism and exuberant colour patterns. Recent fieldwork in the tributaries of the Rio Aripuanã drainage, a large tributary of the Rio Madeira (Amazon Basin), resulted in the discovery of two distinctive, undescribed species of the crenuchin genus Poecilocharax, which are formally described herein, combining morphological and molecular data. These are the first representatives of Crenuchinae discovered after a gap of 57 years and the first records of Poecilocharax from the tributaries of the right bank of the Rio Amazonas draining the Brazilian crystalline shield. Based on a taxonomic review including all species of the subfamily, we provide an expanded morphological diagnosis for Crenuchinae. This now includes characteristics related to the lateral-line canals of head and body, the number of dorsal-fin rays and sexually dimorphic traits. In addition, we review previous characteristics used to diagnose Crenuchus and Poecilocharax, providing comments on their polarity and distribution across the subfamily. A dichotomous key is provided for the first time for species of Crenuchinae. Amazon, COI gene, DNA, freshwater fishes, lateral line, phylogeny, taxonomy, tetras   Poecilocharax callipterus  Poecilocharax rhizophilus Willian M. Ohara, Murilo Pastana and Priscila Camelier. 2022. The Monophyly of Crenuchinae and Description of Two New Species of Poecilocharax (Teleostei: Crenuchidae) based on Phenotypic and Genotypic Evidence. Zoological Journal of the Linnean Society. zlac026. DOI: 10.1093/zoolinnean/zlac026  | ||||
| 2:26a | [Herpetology • 2022] Herpetoreas murlen • Molecular Phylogenetic Analyses of lesser known Colubrid Snakes reveal A New Species of Herpetoreas (Serpentes: Colubridae: Natricinae), and New insights into the Systematics of Gongylosoma scriptum and its alli
Abstract A new species of the genus Herpetoreas is described from Murlen National Park, Mizoram, northeastern India, based on morphological differences and molecular evidence inferred from the mitochondrial cytochrome b and 16S rRNA genes. The new taxon represents the seventh nominal species in the genus Herpetoreas, out of which three species, i.e., H. pealii, H. platyceps and H. xenura, have been recorded from northeastern India as well. An updated taxonomic key to the species of Herpetoreas is provided. Our phylogenetic reconstructions of selected natricine and colubrine snakes from Mizoram state, northeastern India, also contribute to the systematics and known distribution of the little known species Gongylosoma scriptum, and corroborate its taxonomic placement into the subfamily Colubrinae. Moreover, the first molecular based identifications for Liopeltis stoliczkae and Sibynophis collaris from Mizoram are presented. Key words: Serpentes, Amphiesma, Hebius, Herpetoreas sp. n., Liopeltis, Mizoram, Murlen National Park, Sibynophis, taxonomy. 
Herpetoreas murlen sp. n. Diagnosis. Herpetoreas murlen sp. n. is diagnosable by the following morphological characters (based on the holotype, male; Figs. 3–6): 1) TaL/TL 0.23; 2) two PVe, 179 Ve, and 78 paired Sc; 3) As divided; 4) nine IL, with the first four contacting the AG, and the fourth and fifth contacting the PG; 5) eight SL, the third to fifth contacting the eye, the seventh largest; 6) Tem 1+1; 7) two PrO, and three PoO; 8) dorsal scales in 19:19:17 rows, distinctly keeled, those in the first row feebly keeled; 9) internasal scales sub-triangular; 10) scales on posterior part of head and temporal region smooth; 11) the everted hemipenes bilobate near the tip; sulcus spermaticus bifurcated just beneath the crotch; weakly developed apical naked area at the crotch and invisible from the asulcate face; numerous small spines present, increasing in size distally, and a distinct basal hook present (Fig. 6). Etymology. The specific epithet refers to the type locality, Murlen National park, Champhai District, Mizoram, India. We propose as common names, Murlen Keelback Snake (English) and Murlen-Wassernatter (German).   Hmar Tlawmte Lalremsanga, Amit Kumar Bal, Gernot Vogel and Lal Biakzuala. 2022. Molecular Phylogenetic Analyses of lesser known Colubrid Snakes reveal A New Species of Herpetoreas (Squamata: Colubridae: Natricinae), and New insights into the Systematics of Gongylosoma scriptum and its allies from northeastern India. SALAMANDRA. 58(2): 101–115 mizorambulletin.com/2022/05/16/mizo | ||||
| 4:41a | [Botany • 2020] Begonia tjiasmantoi (Begoniaceae, sect. Petermannia) • A New Species from West Sulawesi, Indonesia
A new species, Begonia tjiasmantoi Ardi & D.C.Thomas is described from Mamasa, West Sulawesi, Indonesia. The species is endemic to West Sulawesi and belongs to Begonia section Petermannia. A provisional conservation assessment indicates a Critically Endangered status. Keywords: new species, critically endangered, conservation assessment, a new species, endangered status
Begonia tjiasmantoi Ardi & D.C.Thomas spec.nov. § Petermannia. Begonia tjiasmantoi has a rhizomatous stem, male and female flowers with yellow tepals and male flowers with relatively few stamens (22‒24). This character combination differentiates it from other Sulawesi Begonia species. The rhizomatous growth habit of Begonia tjiasmantoi is similar to the growth habit of the orange-tepalled B. ignita C.W.Lin & C.I.Peng, but B. tjiasmantoi can be differentiated by its strongly asymmetric, ovate toelliptic leaves (8–11 × 3.5–5.5 cm); cymose-paniculate male inflorescence with subumbellate partial inflorescences with up to 6 flowers; yellow male flower tepals that are relatively small (6–8 ×7.5–8.5 mm) and have few stamens (22–24);female flowers with shorter pedicels (3–4 mm), 5(–6) yellow tepals, and a cylindrical seed-bearing part of the fruit. Begonia ignita has symmetric or subsymmetric cordiform leaves that are larger (7–12 × 6.5–11 cm); racemose-cymose male inflorescence with monochasial partial inflorescences with up to 3 flowers; orange male flower tepals that are larger in size (10–15 × 9–11mm), more stamens (35–45); female flowers with longer pedicels (6–13 mm), 4 (or rarely 2, 3 or 5)orange tepals, and an ellipsoid seed-bearing part of the fruit. Etymology. The species epithet refers to Wewin Tjiasmanto, the Chairmain of the Tjiasmanto Conservation Fund, who has generously supported the Sulawesi Begonia Project. Wisnu Handoyo Ardi and Daniel C. Thomas. 2020. Begonia tjiasmantoi, A New Species from West Sulawesi. Reinwardtia. 19(2); 61‒65. DOI: 10.14203/reinwardtia.v19i1.3848  | ||||
| 5:01a | [Botany • 2021] Henckelia khasiana (Gesneriaceae) • A New Species from Meghalaya, India
ABSTRACT A new species of Henckelia (Gesneriaceae) is here described and illustrated. It is morphologically most similar to H. oblongifolia but differs in having lanceolate calyx lobes, two prominent longitudinal flaps on the inner surface of the corolla tube, bilobed stigma and tomentose capsules. A detailed description of the new species with colour photographs, affinities and a comparison with related species is given. Based on the present data, the new species is provisionally assessed as Critically Endangered (CR) according to IUCN Red List Categories and Criteria. Keywords: Conservation status, East Khasi Hills, Mawsynram, Meghalaya, taxonomy
Henckelia khasiana Nampy & Akhil, sp. nov. It is similar to Henckelia oblongifolia (Roxb.) D.J.Middleton & Mich.Möller because of its general appearance, flower colour and yellow lines on the corolla throat, but differs in the shape of the calyx lobes (lanceolate vs. deltoid), the corolla tube (two prominent longitudinal flaps on the in-ner side vs. without longitudinal flaps), the stigma (bilobed vs. obdeltoid) and capsules (tomentose vs. pubescent). Etymology. -The specific epithet is derived from the floristically rich Khasi hills in Meghalaya, where the type locality Mawsynram is situated. Santhosh Nampy, Mannar K. Akhil and Mohan Vishnu. 2021. Henckelia khasiana, A New Species of Gesneriaceae from India. Anales Del Jardín Botánico De Madrid. 78(1); e105. DOI: 10.3989/ajbm.2570 |
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