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Monday, April 22nd, 2024
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| 2:05a | [Crustacea • 2024] The “Mr. and Mrs. Ghat crab”, Ghatiana dvirupa sp. nov. (Decapoda: Brachyura: Gecarcinucidae) from the Central Western Ghats of India
Abstract A new species of gecarcinucid freshwater crab, Ghatiana dvirupa sp. nov., is described herein from the Kali Tiger Reserve of the Uttara Kannada district, Karnataka state, India. The Kali Tiger Reserve is a protected area, which is situated in the Central Western Ghats. The new species superficially most resembles Ghatiana sanguinolenta Pati, Thackeray & Pawar, 2023, from Karnataka but can easily be distinguished mainly by its ultimate article of the male first gonopod, which is distally gently curved inwards against the gently outwardly curved distal portion of the ultimate article in the latter species. Ghatiana dvirupa sp. nov. is also compared with the remaining species of the genus from Karnataka and some morphologically related species from Maharashtra. The difference in colour in life has been noticed between males and females of G. dvirupa sp. nov.; as such the common name of the new species is proposed as “Mr. and Mrs. Ghat Crab”. Ghatiana Pati & Sharma, 2014, is now known for 13 species, all from the Western Ghats of India. Karnataka currently possesses six species of Ghatiana, and many new species are yet to be described. Crustacea, Taxonomy, new species, freshwater crab, Karnataka
Sameer Kumar Pati, Parashuram Prabhu Bajantri, Gopalkrishna Dattatraya Hegde. 2024. The “Mr. and Mrs. Ghat crab”, Ghatiana dvirupa sp. nov. (Decapoda: Brachyura: Gecarcinucidae) from the Central Western Ghats of India. Zootaxa. 5443(1); 116-126. DOI: 10.11646/zootaxa.5443.1.6 | ||||||
| 3:50a | [Botany • 2021] Muscari inundatum (Asparagaceae: Scilloideae) • A New Species from southern Anatolia
Abstract A new species, Muscari inundatum (Asparagaceae) from Turkey, is described and illustrated. It is morphologically similar to M. neglectum and M. adilii, but differs mainly by its shouldered fertile flowers with erect to slightly recurved lobes at maturity. In this study, a comprehensive description, diagnostic characters, original photographs, detailed illustration, geographical distribution, conservation assessment, identification key, and taxonomic comments on the new species are presented. Keywords: Amanos Mountains, Hatay, Mucari adilii, M. neglectum, new taxon, taxonomy, Turkey, Monocots
Muscari inundatum Yıldırım & Eker sp. nov. Eponymy:—The specific epithet of the new species is derived from its habitat, as it grows in flooded places and near puddles.  İsmail Eker and Hasan Yıldırım. 2021. Muscari inundatum (Asparagaceae, Scilloideae), A New Species from southern Anatolia. Phytotaxa. 484(2); 181–194. DOI: 10.11646/phytotaxa.484.2.3 | ||||||
| 8:51a | [Botany • 2021] Elatostema xingyiense (Urticaceae) • A New Species and A New Series of Elatostema from south-western China
Abstract The new series Elatostema section Weddellia series Xingyiensia L.D. Duan & D.H. Yin (Urticaceae) is described. In addition, its new species Elatostema xingyiense L.D. Duan & D.H. Yin, endemic to Guizhou Province, is also described and illustrated with photographs. The new series is morphologically similar to series Melanocarpa W.T. Wang and series Sublinearia W.T. Wang. The new species is most similar to E. melanocarpum, E. sublineare, E. obscurinerve, E. langicuspe and E. youyangense in morphology, but can be visibly distinguished by a combination of characters, including leaf vein, male inflorescences, female inflorescences and persistent tepals. Keywords: Elatostema xingyiense, series Xingyiensia, taxonomy
Elatostema xingyiense L.D. Duan & D.H. Yin, sp. nov. Relationship: This new species is closely related and similar to Elatostema melanocarpum (Wang 2013), Elatostema sublineare (Wang 1980), Elatostema obscurinerve (Wang 1980), Elatostema langicuspe (Wang 2013) and Elatostema youyangense (Wang 1984). This new species is visibly distinguished by a combination of characters: leaf mid-vein impressed, leaf margin revolute (mid-vein flat, margin flat in the other five species); pistillate inflorescence peduncle dichotomously branched (not branched in the other five species) (Table 1). ...  Dan-Hong Yin, Teng-Fei Huang, Zhen Lu and Lin-Dong Duan. 2021. A New Species and A New Series of Elatostema (Urticaceae) from south-western China. PhytoKeys. 180: 65-71. DOI: 10.3897/phytokeys.180.65813 | ||||||
| 9:08a | [Mollusca • 2024] Figuladra finlaysoni, F. robertirwini, F. bromileyorum & F. vidulus • Systematic Revision of the eastern Queensland Land Snail Genus Figuladra Köhler & Bouchet, 2020 (Eupulmonata,: Camaenidae) based on mitochondrial phylogenetics and com
ABSTRACT The current study revises the systematic taxonomy of Figuladra, a genus of camaenid land snails endemic to eastern Queensland, based on the investigation of many recently collected ethanol-preserved samples as well as historic museum material, including types. We employed comparative analyses to investigate the variation in morphological features (shell, penial anatomy) and performed phylogenetic analyses of mitochondrial 16S rDNA sequences to test species hypotheses. Phylogenetic analyses recovered three principal mitochondrial clades, one occurring in mid-east Queensland, one in south-east Queensland, and another in the upland areas of south-east Queensland. We recognise altogether 15 accepted species, including four that are newly described herein (i.e., Figuladra finlaysoni sp. nov., F. robertirwini sp. nov., F. bromileyorum sp. nov. and F. vidulus sp. nov.). The status of 11 previously described species has been assessed and revised diagnoses are provided for each of these. Species of the south-east Queensland clade revealed comparatively low levels of genetic and morphological differentiation and may represent examples of more recent, conceivably ongoing, speciation. Figuladra species have allopatric distributions with their ranges being separated by altitudinal or riverine barriers. Particularly the St Lawrence Gap dry corridor has been identified as a major biogeographic barrier separating two principal clades of Figuladra. KEYWORDS: Biogeography, gastropoda, new species, phylogeny, systematics, taxonomy  Lorelle Stanisic, John Stanisic and Frank Köhler. 2024. Systematic Revision of the eastern Queensland Land Snail Genus Figuladra Köhler and Bouchet, 2020 based on mitochondrial phylogenetics and comparative morpho-anatomy (Eupulmonata, Camaenidae). Molluscan Research. 44(2); 160-208. DOI: 10.1080/13235818.2024.2321650  | ||||||
| 1:55p | [Ichthyology • 2024] Serrasalmus magallanesi • A New Species of Piranha (Characiformes: Serrasalmidae: Serrasalmus) from the Upper Madeira River System, Amazon Basin, Bolivia
Abstract A new species of piranha, in the genus Serrasalmus (Characiformes, Serrasalmidae), is described from tributaries of the upper Madeira River drainage (Bolivian Amazon Basin). This new species exhibits a similar caudal-fin color like that observed in S. hollandi, and review of the literature suggested that former studies have misidentified these two species. The new species can be diagnosed morphologically from other congeners, but genetic variation of the COI sequence data showed little difference (~1%) from similar, morphologically recognized species. Since Serrasalmus species are widespread and morphologically difficult to identify, a key for identifying Bolivian species of this genus is presented. Keywords: COI, morphology, osteology, taxonomy  Serrasalmus magallanesi, New Species Etymology. Serrasalmus magallanesi sp. nov. is named in honor and memoriam of Frank Magallanes, in recognition of his permanent collaboration with ichthyologists and Serrasalmus fans, mainly through his website OPEFE (https://www.opefe.com). Magallanes passed away in May 2022. F. Gallo-Cardozo, M. Maldonado, M. Careaga and F. M. Carvajal-Vallejos. 2024. A New Species of Piranha (Serrasalmus, Serrasalmidae) from the Upper Madeira River System, Amazon Basin, Bolivia. Journal of Ichthyology. DOI: 10.1134/S0032945224700036 | ||||||
| 1:55p | [Ichthyology • 2024] Pimelodella guato • A New Species of Pimelodella (Siluriformes: Heptapteridae) from the Paraguai Basin, Brazil, with a discussion regarding its distribution
Abstract A new species of Pimelodella is described from the rio Paraguai basin in Mato Grosso do Sul and Mato Grosso States, Brazil. The new species distinguishes from all other members of the genus based on a unique combination of characteristics, which include: dorsal profile straight from snout to dorsal-fin, maxillary barbel reaching at least the anal-fin terminus when parallel to main body axis, robust dorsal-fin spine bearing small spinules along three-fourths of its posterior margin, 41–42 total vertebrae (rarely 43 or 44), 13–23 large and retrorse blades at the posterior margin of the pectoral-fin spine, and dorsolateral region of body slightly darkened. This study also discusses the ichthyofaunal similarities between the Paraguai and Amazon basins, shedding light on their biogeographic history. Additionally, the research includes considerations about the sexual dimorphism of Pimelodella and provides an identification key for the Pimelodella species found in the Paraguai basin. Keywords: Biogeography, Catfishes, Identification key, Sexual dimorphism, Taxonomy.
Pimelodella guato, new species Diagnosis. Pimelodella guato differs from all Pimelodella species except P. boliviana, P. chaparae, P. cristata, P. cruxenti, P. dorseyi, P. geryi, P. gracilis, P. howesi, P. humeralis, P. laurenti, P. longibarbata, P. longipinnis, P. martinezi, P. megalops, P. mucosa, P. notomelas, P. odynea, P. ophthalmica, P. parnahybae, P. serrata, P. steindachneri, P. taeniophora, P. tapatapae, P. wesselii, and P. witmeri by the long maxillary barbel, reaching at least the anal-fin terminus when parallel to main body axis (vs. reaching at best posterior limit of anal-fin base). It differs from P. longipinnis and P. tapatapae by having the supraoccipital process reaching the anterior nuchal plate (vs. not reaching, gap between distal terminus of supraoccipital process and anterior nuchal plate ca. 20–25% of supraoccipital process length). It differs from P. boliviana, P. cruxenti, P. geryi, P. laurenti, P. martinezi, P. megalops, P. notomelas, P. odynea, and P. taeniophora by having a robust dorsal-fin spine, bearing small, straight spinules along three-fourths of its posterior margin (vs. dorsal-fin spine not particularly robust, with posterior margin spinules inconspicuous or absent). It differs from P. cristata, P. dorseyi, P. gracilis, P. howesi, P. humeralis, P. ophthalmica, P. parnahybae, P. steindachneri, P. wesselii,and P. witmeri by usually having 41–42 (rarely 43 or 44) total vertebrae (vs. always 43–44 in P. howesi; 46 or more in the remaining species). It further differs from P. howesi by having the dorsolateral region of body slightly darkened (vs. not darkened), dorsal fin with light brown stripe near its origin, followed by a hyaline stripe, and distal half dark (vs. basal half of dorsal fin hyaline, and distal half dark), and by the dorsal lamina of the Weberian apparatus reaching the ventral margin of the supraoccipital process only at its first third (vs. dorsal lamina reaching the supraoccipital process along all its extension). It differs from P. mucosa and P. longibarbata by the preoperculomandibular laterosensory canal openings at dentary not particularly large (vs. large openings). It differs from P. chaparae, P. longibarbata, and P. serrata by the wide midlateral stripe (vs. narrow) and by the dorsal lamina of the Weberian apparatus reaching the ventral margin of the supraoccipital process only at its first third (vs. first half in P. longibarbata; and almost its entire extension in P. chaparae and P. serrata) (Figs. 2A, D). Etymology. The species name guato is in honor of the indigenous Guató people, who are affectionately known as “people of the Pantanal waters” due to their primary mode of transportation, canoes. Historically, the Guató people inhabited an extensive area along the rio Paraguai (Schmidt, 1942). However, in the 1940s, they began to lose their territory due to cattle ranching, and many relocated to cities such as Cáceres and Corumbá. This dispersal led to a reduction in the Guató population, and since then, they have been fighting for recognition of their ethnicity and the demarcation of their lands (Costa, 2015). The choice of guato is a homage to the resilience and cultural significance of these people who inhabit the same region where the new species is found. It also recognizes the ongoing struggles with land delimitation that indigenous communities continue to face, particularly in Brazil. A noun in apposition. Veida Pierre and Veronica Slobodian. 2024. A New Species of Pimelodella (Siluriformes: Heptapteridae) from the Paraguai Basin, Brazil, with a discussion regarding its distribution. Neotrop Ichthyol. 22(1): e230110. DOI: 10.1590/1982-0224-2023-0110 |
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