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Sunday, July 7th, 2024
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| 4:15a | [Herpetology • 2024] Thamnophis ahumadai • A New Species of Thamnophis (Serpentes: Colubridae) from Jalisco, Mexico, with A Discussion on the Phylogeny, Taxonomy, and Distribution of Snakes related to Thamnophis scalaris
Abstract Garter snakes in the genus Thamnophis from Mexico have a long and convoluted taxonomic history. From 2015 to 2022, we conducted a comprehensive sampling of Mexican Thamnophis species, aiming to link molecular phylogenies with the recognized species related to T. scalaris in the highlands of Mexico. Here, we present an analysis of mitochondrial DNA to resolve the status of two enigmatic highland Thamnophis populations. Our research resulted in the identification and morphological characterization of a previously undescribed Thamnophis species from the state of Jalisco in western Mexico. We also clarify the identity and relationships of several previously enigmatic populations of Thamnophis. This work presents new data for Thamnophis phylogenetics from the Mexican highlands and offers a framework for future conservation efforts. Key Words: Adelophis, conservation, errans, godmani, pine-oak woodland, Mexican Transverse Ranges, scaliger
Thamnophis ahumadai sp. nov. Proposed standard English name: Ahumada’s Alpine Garter Snake. Proposed standard Spanish name: Culebra Listonada de Montaña de Ahumada. Diagnosis: A relatively small Garter Snake, with a maximum of 565 mm SVL and 705 TotL; head narrow, scarcely wider than neck, with a short muzzle (INK + PFK = 3.0 mm); tail long in length, 31–36% of SVL and 23–27% of TotLin males, 25–26% of SVL and 20–21% of TotLin females; internasals wider than long; frontal 2–2.25 times longer than wide; loreal slightly longer than wide; one preocular; 2–4 postoculars; temporals 1 + 2; 7 supralabials, third and fourth entering orbit; 9–10 infralabials, first four in contact with anterior chinshields; anterior chinshields shorter than posterior. Dorsal scales always in 19-17-17 rows, strongly keeled except for the outermost row, which is smooth; ventral scales in males 134–142, in females 139–141; subcaudals in males 61–69, in females 54–55; anal scale undivided. Dorsal pattern consists of a pale mid-vertebral stripe restricted to the mid-dorsal row and a pale lateral stripe on second scale row. One or two rows of dark brown or black dorso-lateral spots, usually in one row on the anterior third of the dorsum, then divided into two rows along the remaining posterior two thirds. Ventral coloration dark, pale anteriorly, becoming progressively darker until dark gray or black posteriorly. Etymology: A patronym honoring Iván Trinidad Ahumada-Carrillo (1984–), who has made many contributions to diverse areas in herpetology, including extensive studies of the herpetofauna of Jalisco and Zacatecas. Iván collected the first specimen of this new species in the Sierra Cacoma (MZFZ 4593) and pointed out its distinctiveness from typical T. scalaris and T. errans. Christoph I. Grünwald, María del Carmen G. Mendoza-Portilla, André J. Grünwald, Carlos Montaño-Ruvalcaba, Héctor Franz-Chávez, Uri O. García-Vázquez and Jacobo Reyes-Velasco. 2024. A New Species of Thamnophis (Serpentes, Colubridae) from Jalisco, Mexico, with A Discussion on the Phylogeny, Taxonomy, and Distribution of Snakes related to Thamnophis scalaris. Herpetozoa. 37: 157-179. DOI: 10.3897/herpetozoa.37.e122213 Resumen: Las culebras del género Thamnophis de México tienen una historia taxonómica larga y complicada. De 2015 a 2022, realizamos un muestreo integral de las especies de Thamnophis de México, con el objetivo de conciliar la filogenética molecular con las delimitaciones de especies establecidas en el complejo relacionado con T. scalaris en las tierras altas de México. Aquí presentamos un análisis del ADN mitocondrial para resolver las trayectorias evolutivas y el estado de dos enigmáticas poblaciones de Thamnophis de las tierras altas. Nuestra investigación resultó en la identificación y caracterización morfológica de una especie de Thamnophis no descrita previamente del estado de Jalisco en el oeste de México. También aclaramos la identidad y las relaciones de varias poblaciones de Thamnophis previamente enigmáticas. Este trabajo presenta nuevos datos para nuestra comprensión de la filogenética de Thamnophis del altiplano mexicano y ofrece un marco para futuros esfuerzos de conservación. | ||||||
| 2:44p | [Botany • 2024] Polylepis rocio-rojasii (Rosaceae) • A New Species from the Bosque de Proteccion Pui-Pui, Peru
Abstract A new species of Polylepis (Rosaceae) from the Humid Puna of the Bosque de Proteccion Pui-Pui in Junin, Peru, is described and illustrated. The new species was found at 3800 m elevation, in small patches or forest relicts of the natural protected area, growing in open areas highly exposed to wind and abundant fog, along with other shrubby species, mainly Chusquea tessellata (Poaceae). It is very similar to Polylepis canoi but differs by trifoliolate leaves with larger leaflets, lanuginose abaxially, and rounded to ovoid achenes, smaller than those of P. canoi. We also present details on its geographic distribution, ecological notes, and an assessment of the conservation status of the new species. Exfoliating rhytidomes, Geological formations, National Service of Protected Natural Areas, Tropical Andes, Sericeaee, Sericeus, Stipular sheath, Eudicots   Polylepis rocio-rojasii Luis Valenzuela Gamarra and María Isabel Villalba Valdivia. 2024. A New Species of Polylepis (Rosaceae) from the Bosque de Proteccion Pui-Pui, Peru. Phytotaxa. 655(1); 97-104. DOI: 10.11646/phytotaxa.655.1.8 | ||||||
| 2:45p | [Botany • 2024] Pinguicula tlahuica (Lentibulariaceae) • A New endemic Species and Species Richness Distribution of the Genus Pinguicula in the Trans-Mexican Volcanic Belt, Mexico
Abstract Background: The genus Pinguicula harbors 110 species, of which 53 are distributed in Mexico. The formation of the Mexican mountains has favored the Pinguicula diversification. Pinguicula specimens collected in the State of México, along the Trans-Mexican Volcanic Belt (TMVB) do not correspond with any known species. Questions: Do the collected specimens belong to a new species? What is its conservation status? How many Pinguicula species are there along the TMVB and how do they differentiate? How is the Pinguicula species richness distributed? Studied species: Pinguicula. Study site and dates: TMVB, 2005-2023. Methods: Based on herbarium specimens and recently collected material, a morphological analysis and description were made. Conservation status was assessed following IUCN Red List Categories and Criteria. Herbarium specimens and digital records of Pinguicula from the TMVB were examined to generate a list and key. We analyzed the richness distribution of Pinguicula by states, vegetation types, elevation ranges, and grid cells. Results: Pinguicula tlahuica is proposed as a new species. It is distinguished by the linear-spatulate summer leaves. The new species falls into the Endangered (EN) category. Along the TMVB, 16 species of Pinguicula are distributed. The State of México, Hidalgo and Michoacán, and the pine-oak forest were the richest. Pinguicula appeared between 759-3,427 m asl. The grid cell analyses revealed different areas with high richness. Conclusions: Along the TMVB, the Pinguicula species richness centered on the Eastern and Western sectors. Pinguicula crassifolia, P. michoacana, P. tlahuica, and P. zamudioana are endemic to the TMVB. Keywords: butterworts, carnivorous plants, diversification, Mexican Transition Zone, Pinguicula section Orcheosanthus
Pinguicula tlahuica López-Pérez & Zamudio, sp. nov. Diagnosis. Pinguicula tlahuica is morphologically similar to P. moranensis Kunth in the form and size of the flow-ers, but it is distinguished from it by: the oblong to oblong-spathulate winter leaves; linear-spatulate summer leaves, 7.0-14.5 × 0.5-1.7 cm; blooming with winter rosette. Etymology. The specific epithet honors the Tlahuica ethnical people. The tlahuicas inhabit some villages in Ocuilan de Arteaga, State of México (Álvarez Fabela 2006). Mexico Jorge David López-Pérez, Sergio Zamudio, Guadalupe Munguía-Lino, Aarón Rodríguez. 2024. A New endemic Species and Species Richness Distribution of the Genus Pinguicula (Lentibulariaceae) in the Trans-Mexican Volcanic Belt, Mexico. Botanical Sciences. 102(3), 995-1008. DOI: 10.17129/botsci.3485 facebook.com/100063883189278/posts/928738855932212  | ||||||
| 3:27p | [Ichthyology • 2024] Poropuntius anlaoensis • Taxonomic Revision of the Southeast Asian Brook Barb Genus Poropuntius Smith, 1931 (Cypriniformes: Cyprinidae) with Description of A New Species from Vietnam
Abstract Molecular data from samples encompassing 22 nominal species of Poropuntius indicate that the species-level diversity in the genus has been vastly overestimated, likely due to inadequate taxon and geographic sampling and reliance on morphological characters that vary intra-specifically. The latter includes discrete mouth morphologies related to alternate feeding strategies (ecomorphs) within populations. One new species is described, Poropuntius anlaoensis Hoàng, Phạm & Trần, sp. nov., and 17 synonyms of six valid species names of Poropuntius, P. krempfi, P. alloiopleurus, P. huangchuchieni, P. laoensis, P. kontumensis, and P. deauratus, are recognised. Additional taxonomic changes in this widespread and generally poorly known genus are likely as more molecular and morphological data become available. Key words: Cypriniformes, molecular systematics, phylogeny, Poropuntius anlaoensis sp. nov.   Poropuntius anlaoensis Hoàng, Phạm & Trần, sp. nov. Huy Duc Hoang, Hung Manh Pham, Ngan Trong Tran, Jean-Dominique Durand, Ling Wu, John Pfeiffer, Xiao-Yong Chen and Lawrence M. Page. 2024. Taxonomic Revision of the Southeast Asian Brook Barb Genus Poropuntius Smith, 1931 (Teleostei, Cyprinidae) with Description of A New Species from Vietnam. ZooKeys. 1204: 191-198. DOI: 10.3897/zookeys.1204.120873 |
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