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Monday, October 21st, 2024
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| 12:11a | [Ichthyology • 2024] Paranemachilus luegvetensis & P. liui • Two New Species of the Genus Paranemachilus (Cypriniformes: Nemacheilidae) from Guangxi, China
Abstract This study describes two new species within the genus Paranemachilus. Paranemachilus luegvetensis sp. nov. and Paranemachilus liui sp. nov. can be distinguished from all recognized congeners by a combination of morphological characteristics and substantial genetic divergences. Paranemachilus luegvetensis sp. nov. is characterized by scaled cheeks; the whole body covered in scales, except for the head; 11–12 branched pectoral fin rays; 4–5 preoperculomandibular canal pores; body depth 13.5%–16.8% of standard length; and preanus length 68.3%–73.9% of standard length. Paranemachilus liui sp. nov. is characterized by scaled cheeks; the whole body covered in scales except for the head; 11–13 branched pectoral fin rays; 11–15 supraorbital canal pores at the base of the anterior nostrils; 7–9 preoperculomandibular canal pores; preanus length 67.4%–74.3% of standard length; snout length 21.4%–28.7% of lateral head length. Key Words: cave loach, scaled cheeks, taxonomy, Xijiang River
Paranemachilus luegvetensis Mo, Yang, Li & Du, sp. nov. Diagnosis: Comparative data between Paranemachilus luegvetensis sp. nov. and all five known species within the genus Paranemachilus are provided in Table 3. Paranemachilus luegvetensis sp. nov. differs from all other congeneric species of Paranemachilus by cheeks scaled (vs. scaleless in P. chongzuo, P. pingguoensis, and P. zhengbaoshani), 11–12 branched pectoral fin rays (vs. 10 in P. chongzuo), 4–5 preoperculomandibular canal pores (vs. zero in P. chongzuo, 11–12 in P. pingguoensis and P. zhengbaoshani, 10 in P. genilepis, and 10–11 in P. jinxiensis), body depth 13.5%–16.8% of standard length (vs. greater than 18% in P. jinxiensis and P. pingguoensis), and preanus length 68.3%–73.9% of standard length (vs. greater than 75.3% in P. chongzuo, P. genilepis, P. jinxiensis, P. pingguoensis, and P. zhengbaoshani). Etymology: The name luegvetensis originates from the Zhuang language of the Luoyue Ancient Kingdom, pronounced LOKWET. This kingdom, believed to be located in what is now the Wuming District of Nanning City, Guangxi, China, where the type specimens were collected, is considered the cradle of this ancient civilization. The Luoyue Ancient Kingdom was known for its rich cultural contributions, including rice cultivation, cotton textiles, cliff paintings, witchcraft, Longmu rituals, and jade carving. These cultural elements profoundly influenced not only Chinese and Southeast Asian civilizations but also had significant global impacts. We propose the common Chinese name “骆越异条鳅” (Luo Yue Yi Tiao Qiu).
Paranemachilus liui Mo, Yang, Li & Du, sp. nov. Diagnosis: Comparative data among Paranemachilus liui sp. nov. and all five known species within the genus Paranemachilus are provided in Table 3. Paranemachilus liui sp. nov. can be distinguished from all other congeneric species of the genus Paranemachilus by cheeks scaled (vs. scaleless in P. chongzuo, P. pingguoensis, and P. zhengbaoshani), 11–13 branched pectoral fin rays (vs. 10 in P. chongzuo), 7–9 preoperculomandibular canal pores (vs. zero in P. chongzuo, 11–12 in P. pingguoensis and P. zhengbaoshani), preanus length 67.4%–74.3% of standard length (vs. greater than 75.3% in P. chongzuo, P. genilepis, P. jinxiensis, P. pingguoensis, and P. zhengbaoshani), snout length 21.4%–28.7% of lateral head length (vs. greater than 30.0% in P. chongzuo, P. genilepis, P. jinxiensis, P. pingguoensis, and P. zhengbaoshani), and 11–15 supraorbital canal pores at base of anterior nostrils (vs. 3 in P. chongzuo, 9 in P. jinxiensis, and 9–10 in P. zhengbaoshani and P. pingguoensis). Etymology: The new species is named in honor of Zongyuan Liu, a distinguished official, literary author, and thinker. During his tenure in Liuzhou, Liu significantly promoted the economic and cultural landscape of the region, thereby elevating the quality of life for its residents and earning him deep admiration and respect from the local community. We propose the common Chinese name “柳氏异条鳅” (Liu Shi Yi Tiao Qiu). Hao-Lin Mo, Jian Yang, Peng Li and Li-Na Du. 2024. Description of Two New Species of the Genus Paranemachilus (Cypriniformes, Nemacheilidae) from Guangxi, China. Zoosystematics and Evolution. 100(4): 1375-1385. DOI: doi.org/10.3897/zse.100.129520  | ||||||
| 1:05a | [Ichthyology • 2024] Rineloricaria atratoensis & R. giua • Two New Species of Rineloricaria (Siluriformes: Loricariidae) from Trans-Andean Rivers of Colombia, Unveiled through Iterative Taxonomy
Abstract Two new species of Rineloricaria are described from the trans-Andean region of Colombia. Rineloricaria atratoensis, new species, is distributed in the Atrato River and is distinguished by the absence of the mid-dorsal plate series and by having three rows of median abdominal plates, first (unbranched) ray of dorsal, pectoral, and pelvic fins extended as a short filament, and breeding males with hypertrophied odontodes on sides of head and dorsum of pectoral fin. Rineloricaria giua, new species, is found in the Magdalena and Ranchería Rivers and is distinguished by absence of mid-dorsal plate series and by having four or five rows of median abdominal plates, four plates along sides of dorsal-fin base, lateral margins of snout straight, and breeding males with hypertrophied odontodes on sides of head and dorsum of pectoral fin. Phylogenetic analyses of COI sequences of species of Rineloricaria from trans-Andean and Central American river basins revealed the different phylogenetic positions of the new species. Likewise, species delimitation analyses corroborated their status as independent lineages. An identification key for the trans-Andean and Central American species of Rineloricaria is provided. Rineloricaria atratoensis, new species Diagnosis.—Rineloricaria atratoensis is distinguished from all trans-Andean and Central American congeners by having the first (unbranched) ray of dorsal, pectoral, and pelvic fins extended as a short filament (vs. coterminous with branched rays in R. altipinnis, R. giua, new species, R. jubata, R. magdalenae, R. rupestris, R. sneiderni, and R. uracantha). Rineloricaria atratoensis can also be distinguished from this group of species (except R. magdalenae) by having a paired deep depression between the nostrils and the ... Etymology.—The species name atratoensis is in reference to its type locality, the Atrato River. 
Rineloricaria giua, new species Diagnosis.—Rineloricaria giua is distinguished from most trans-Andean and Central American congeners (except R. jubata and R. uracantha) by having four or five rows of median abdominal plates (vs. three in R. atratoensis and R. magdalenae, more than six in R. altipinnis, R. rupestris, and R. sneiderni). Rineloricaria giua is also distinguished from this group of species (except R. magdalenae) by having lateral margins of the snout straight (vs. convex in R. altipinnis, R. atratoensis, R. jubata, R. rupestris, R. uracantha, and R. sneiderni). Rineloricaria giua differs from R. atratoensis, R. jubata and R. rupestris by having four plates along sides of dorsal-fin base (vs. five). Also, R. giua is distinguished from R. atratoensis and R. magdalenae by absence of a paired deep depression between the nostrils and the interorbital region (vs. present) and postorbital notch small and shallow (vs. large and deep). The new species is further distinguished from most of its congeners (except R. atratoensis, R. aurata, ... Etymology.—In honor of the Grupo de Ictiología of Universidad de Antioquia (acronym GIUA). Used as a noun in apposition. María Camila Castellanos-Mejía, Alejandro Londoño-Burbano, Luz E. Ochoa, Carlos A. García-Alzate and Carlos DoNascimiento. 2024. Two New Species of Rineloricaria (Siluriformes: Loricariidae) from Trans-Andean Rivers of Colombia, Unveiled through Iterative Taxonomy. Ichthyology & Herpetology. 112 (3), 429-443. DOI: doi.org/10.1643/i2023091 Se describen dos especies nuevas de Rineloricaria de la región transandina de Colombia. Rineloricaria atratoensis, especie nueva, se distribuye en el río Atrato y se distingue por no tener la serie de placas dorsales medias, y por poseer tres series de placas abdominales medias, el primer radio (no ramificado) de las aletas dorsal, pectoral y pélvica extendido como un filamento corto, y machos reproductores con odontodes hipertrofiados en los lados de la cabeza y el dorso de la aleta pectoral. Rineloricaria giua, especie nueva, se encuentra en los ríos Magdalena y Ranchería y se distingue por la ausencia de la serie de placas dorsales medias, y por tener cuatro o cinco series de placas abdominales medias, cuatro placas a los lados de la base de la aleta dorsal, márgenes laterales del hocico rectos y machos reproductores con odontodes hipertrofiados en los lados de la cabeza y el dorso de la aleta pectoral. Los análisis filogenéticos de las secuencias COI de especies de Rineloricaria de las cuencas transandinas y centroamericanas, revelaron la diferente posición filogenética de las especies nuevas. Asimismo, los análisis de delimitación de especies corroboraron su condición de linajes independientes. Se proporciona una clave de identificación para las especies transandinas y centroamericanas de Rineloricaria. | ||||||
| 6:48a | [Botany • 2024] Ceratozamia guatemalensis (Zamiaceae) • A New cycad Species from Mesoamerica
Abstract Ceratozamia guatemalensis, a new cycad species from the Sierra de los Cuchumatanes, Huehuetenango, Guatemala, is described and compared with the geographically proximal congeners C. vovidesii and C. matudae, with which C. guatemalensis has been historically confused based on their pendulous seed cones, a rare trait in the genus. Nonetheless, a recent phylogenetic study suggests that C. guatemalensis and C. vovidesii are sister species, while C. matudae belongs to distant clade. The new taxon is easily distinguishable from both C. vovidesii and C. matudae by qualitative and quantitative traits based on vegetative and reproductive structures. Remarkably, C. guatemalensis is characterized by having significant morphometric differences from the other two species, such as the wider median leaflets and wider leaflet articulations, and qualitative traits such as the seed cones of green color. The description of C. guatemalensis represents the recognition of the first endemic Ceratozamia species from Guatemala. It should be considered Critically Endangered (CR) due to limited populations and the ongoing destruction of its habitat. endangered species, Guatemalan Flora, Quercus-Pinus forest, morphological variation, species complex, Gymnosperms  Ceratozamia guatemalensis Miguel Angel Pérez-Farrera, Pedro Díaz-Jiménez, Maura L. Quezada, Andrea Marroquín-Tintí, Héctor M. Delgado Montejo, Sandy A. Mendoza-Montejo and José Said Gutiérrez-Ortega. 2024. Ceratozamia guatemalensis (Zamiaceae): A New cycad Species from Mesoamerica. Phytotaxa. 668(1); 63-80. DOI: doi.org/10.11646/phytotaxa.668.1.4 Researchgate.net/publication/384806807_Ceratozamia_guatemalensis_A_new_species_from_Mesoamerica  | ||||||
| 10:31a | [Herpetology • 2024] The Second Specimen of the Ghost Leaf-Frog Phrynomedusa fimbriata Miranda-Ribeiro, 1923 (Hylidae: Phyllomedusinae) from the Brazilian Atlantic Forest
Abstract Leaf-frogs of the genus Phrynomedusa are rare phyllomedusine species known from a limited number of localities in the Brazilian Atlantic Forest, most of them known only from its small type series. Phrynomedusa fimbriata is known only from the holotype, a female collected in 1898. Despite subsequent efforts, no additional specimens have been collected or registered since this date, which led to the inclusion of P. fimbriata in the list of extinct taxa in the official Brazilian Red List. While examining the specimens deposited in the herpetological collection of the Museu de Zoologia da Universidade de São Paulo, Brazil, we discovered a second specimen of P. fimbriata, an adult male collected in the “Serra do Araraquara,” state of Paraná, Brazil, previously identified as Phrynomedusa appendiculata. Herein, we updated the diagnosis of P. fimbriata to include a description of an adult male and revised the doubtful voucher specimens identified as P. fimbriata and P. appendiculata in the herpetological collections outside of Brazil. In addition, we provide a new locality record of P. appendiculata in the state of São Paulo, Brazil.  Délio Baêta and José P. Pombal Jr. 2024. The Second Specimen of the Ghost Leaf-Frog Phrynomedusa fimbriata Miranda-Ribeiro, 1923 from the Brazilian Atlantic Forest (Hylidae, Phyllomedusinae). Ichthyology & Herpetology. 112(3); 418-428. DOI: doi.org/10.1643/h2023063 | ||||||
| 3:13p | [Botany • 2024] Coelogyne tripurensis • Taxonomy of Coelogyne section Fuliginosae (Orchidaceae): New Species, Notes, Resurrections and Typifications
Abstract Coelogyne tripurensis is described here as a species new to science. This epiphytic orchid was discovered from the moist broadleaf forests of Jampui Hills in Tripura, North-East India situated at the westernmost fringe of Indo-Myanmar Biodiversity Hotspot. Evidences to delineate the newly described species and its significant differences from closely related taxa have been provided. We discuss the resurrection of C. fuliginosa, C. leungiana and C. pallens as distinct species. Additionally, lectotypification of C. chrysotropis, C. ovalis and C. pallens, and neotypification of C. fuliginosa is presented. We also provide historical evidence for the range extension of C. phitamii in Thailand. An identification key for the taxonomically challenging Coelogyne section Fuliginosae which consists of nine species is provided along with detailed nomenclatural notes on each species as a revision of the section. Flora of Tripura, Indo-Myanmar Biodiversity Hotspot, nomenclature, North-East India, South and South-East Asia, taxonomic revision, Monocots  Arjun Adit and Pankaj Kumar. 2024. Taxonomy of Coelogyne section Fuliginosae (Orchidaceae): New Species, Notes, Resurrections and Typifications. Phytotaxa. 668(1); 81-98. DOI: doi.org/10.11646/phytotaxa.668.1.5 Researchgate.net/profile/Arjun-Adit/rese  |
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