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Thursday, October 14th, 2021
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| 9:03a | [Botany • 2021] Alpinia laosensis (Zingiberaceae), the Correct Name for A Species previously misidentified as A. conchigera
Abstract Alpinia laosensis was previously placed in synonymy under A. conchigera. However, a critical examination of herbarium specimens (including type material) and living plants of A. laosensis and A. conchigera reveals that they are two separate species. Alpinia laosensis can be distinguished from A. conchigera by the shape of its fruits, shape and size of leaves and colour of labellum. We therefore reinstate A. laosensis as an independent species. A detailed description of A. laosensis together with a distribution map of both species are provided. Keywords: Reinstatement, gingers, misidentification, Monocots
 Alpinia laosensis Gagnepain (1906: 133) Vernacular names: Chinese name “老挝山姜” (romanised by “lao wo shan jiang”); Lao name “ຂ່າແດງ” (Kha Deang).   Alpinia conchigera Griff. Xing-Er Ye, Khang Sinh Nguyen, Keooudone Souvannakhoummane, Quoc Binh Nguyen and Juan Chen. 2021. Alpinia laosensis, the Correct Name for A Species previously misidentified as A. conchigera. Phytotaxa. 508(2); 129–141. DOI: 10.11646/phytotaxa.508.2.2 | ||||||||||
| 4:43p | [Crustacea • 2021] Five New Species of Freshwater Crabs of the Genera Ghatiana and Sahyadriana (Decapoda: Brachyura: Gecarcinucidae) from the Western Ghats of India
We recognize two new species of Ghatiana Pati & Sharma, 2014, and three new species of Sahyadriana Pati & Thackeray, 2018, from the Western Ghats of India. Ghatiana durrelli n. sp. is characterized mainly by the proportionately narrower adult carapace, the relatively broader male pleonal somite 6, and the relatively stouter terminal segment of the male first gonopod. Ghatiana rouxi n. sp. is differentiated from congeners by its proportionately narrower adult carapace with the gently convex lateral margins. Sahyadriana inopinata n. sp. is characterized by a suite of characters that includes the visible epibranchial tooth, the relatively slenderer and longer terminal segment of the male first gonopod, and the subovate and relatively smaller adult vulva that is positioned a clear distance from the suture between thoracic sternites 5 and 6. Sahyadriana keshari n. sp. differs from the allied S. waghi (Pati in Pati, Thackeray & Khaire, 2016) by the relatively stouter terminal segment of the male first gonopod, and the relatively larger adult vulva, which is positioned close to the suture between thoracic sternites 5 and 6. Sahyadriana tamhini n. sp. most resembles S. alcocki (Pati in Pati, Thackeray & Khaire, 2016) but can be differentiated by its relatively longer, distally distinctly narrow terminal segment and the sinuous inner margin of the subterminal segment of the male first gonopod, and the relatively closely positioned and larger adult vulvae. Ghatiana and Sahyadriana now include 10 species and 13 species, respectively. An updated key is provided for both genera. Keywords: Crustacea, Gecarcinucidae, India, Western Ghats, new species
Superfamily Gecarcinucoidea Rathbun, 1904 Family Gecarcinucidae Rathbun, 1904
Genus Ghatiana Pati & Sharma, 2014 Ghatiana Pati & Sharma, 2014: 1281. Type species. — Ghatiana aurantiaca Pati & Sharma, 2014, by original designation; gender feminine.
Ghatiana durrelli n. sp. Etymology. — The species name honours British naturalist, Gerald Malcolm Durrell for his in situ and ex situ conservation efforts. The specific epithet is thus conceived as a noun in the genitive singular. Ecological notes. — Ghatiana durrelli n. sp. is a nocturnal crab and is found in tree trunk holes and in holes or crevices of laterite rocks (locally known as “Jambha”). The species occurs at elevated mountains (840-940 m altitude). Some individuals were observed feeding on dead millipedes. Ghatiana rouxi n. sp. Etymology. — The species is named after the Swiss zoologist, Dr Jean Roux for his contributions on the study of crabs of the Western Ghats. The species name is conceived as a noun in the genitive singular.
Genus Sahyadriana Pati & Thackeray, 2018 Sahyadriana Pati & Thackeray, 2018: 46. Type species. — Sahyadriana sahyadriensis Pati & Thackeray, 2018, by original designation; gender feminine. Sahyadriana inopinata n. sp. Etymology. — The species name is an adjective in the Latin nominative singular meaning unexpected, referring to the unexpected discovery of the species from the type locality of a congener, i.e., S. triangulus (Pati & Sharma, 2014). Sahyadriana keshari n. sp. Etymology. — The species name, derived from the Marathi language for orange coloured, refers to live colouration of the crab. The name is used as a Latin noun in apposition. Sahyadriana tamhini n. sp. Etymology. — The species is named after the type locality, Tamhini Ghat, a hotspot for wildlife in Maharashtra that hosts rich biodiversity and many endemic species, including that of the freshwater crabs. The species name is used as a Latin noun in apposition.   Sameer K. Pati and Tejas U. Thackeray. 2021. Five New Species of Freshwater Crabs of the Genera Ghatiana Pati & Sharma, 2014 and Sahyadriana Pati & Thackeray, 2018 from India (Decapoda: Brachyura: Gecarcinucidae). ZOOSYSTEMA. 43(26); 627-647. sciencepress.mnhn.fr/en/periodiques/zoos  | ||||||||||
| 11:56p | [Ichthyology • 2021] Erdmannichthys alorensis • A New Genus of Gobiesocidae (Teleostei: Gobiesociformes), and Notes on the Rare Clingfish E. alorensis (Allen & Erdmann, 2012), new combination
Abstract Erdmannichthys, a new genus of the family Gobiesocidae, is introduced to include a species previously assigned to Aspasmichthys. This act is supported by morphological characters and the results of a recent molecular phylogenetic study that placed the two currently described species of Aspasmichthys as distant relatives within the subfamily Diademichthyinae (i.e., polyphyletic). New details on live colouration and skeletal anatomy are provided for Erdmannichthys alorensis, new combination, based on photographs and one additional specimen collected from Padar Island, Komodo Group (Indonesia). Key words. Diademichthyinae, Aspasmichthys, computer tomographic scanning, miniature
Erdmannichthys, new genus Diagnosis. A genus of the subfamily Diademichthyinae sensu Conway et al. (2020), distinguished from all other genera of this subfamily by the presence of a prominent dark reddishbrown oval to triangular marking at base of caudal fin (Figs. 3, 4). The new genus is distinguished from Diademichthys, Discotrema, Flabellicauda, “Lepadichthys”, Lepadicyathus and Unguitrema by having a double adhesive disc (Fig. 5) (vs. single adhesive disc). It is distinguished from the remaining diademichthyine genera (viz. Aspasma, Aspasmichthys, Aspasmodes, Briggsia, Flexor, Liobranchia, Lissonanchus, Pherallodus, Pherallodichthys and Propherallodus), all with a double adhesive disc, by the presence of three white lines on the body surface in life (Figs. 3, 4), including a mid-dorsal stripe (originating on tip of snout posterior to upper lip and extending to dorsal-fin origin) and a pair of dorsolateral stripes (originating on dorsolateral part of snout adjacent to anterior nostril and extending posterior, through upper part of eye, to area on upper body side close to caudal fin base) (vs. colour pattern in life largely uniform, with smaller indistinct dark markings [Aspasma, Aspasmodes, Briggsia, Flexor and Lissonanchus] or with prominent darker stripes, saddles or other markings [Aspasmichthys, Pherallodus, Pherallodichthys and Propherallodus] but without prominent white lines along long axis of body; life colour unknown for Liobranchia). It is further distinguished from the other diademichthyine genera with a double adhesive disc by the following combination of characters: gill membranes united and free from isthmus forming single continuous gill opening (Figs. 4, 5A) (vs. gill membranes connected to isthmus restricting gill opening to side of head in Aspasma, Aspasmichthys, Aspasmodes, Briggsia, Liobranchia, Lissonanchus and Pherallodichthys); papillae of disc region A continuous across centre (Fig. 5A, B) (vs. centre of region A without papillae in Aspasma, Aspasmichthys [Fig. 5C, D] and Pherallodus); mandibular portion of preoperculo-mandibular lateral-line canal absent (Fig. 6C) (vs. present on anguloarticular in Aspasmichthys); preopercular portion of preoperculo-mandibular lateral-line canal with two pores (PR1 and PR3) only (Fig. 6B, C) (vs. three pores, PR1–3, in Aspasma, Aspasmichthys, Flexor and Propherallodus, preopercle without canal in Briggsia, Lissonanchus and Pherallodus); presence of a small oval gap in dorsal view between anterior tips of premaxillae formed by a semicircular indentation along medial edge of premaxilla (Fig. 6A) (vs. minute square gap in Aspasma, medial edge of premaxilla straight, without gap between premaxillae in Aspasmodes, Liobranchia and Pherallodichthys); subopercle poorly ossified, posterior margin rounded (Fig. 6B, C) (vs. subopercle well ossified, posterior edge with spine-like posterior process in Aspasmichthys). Etymology. Named for Mark V. Erdmann, in honour of his work on Indo-Pacific reef fishes. Gender masculine. Type species. Aspasmichthys alorensis Allen & Erdmann, 2012, by present designation. Kevin W. Conway, Kyoji Fujiwara, Hiroyuki Motomura and Adam P. Summers. 2021. Erdmannichthys, A New Genus of Gobiesocidae (Teleostei: Gobiesociformes), and Notes on the Rare Clingfish E. alorensis (Allen & Erdmann, 2012), new combination. RAFFLES BULLETIN OF ZOOLOGY. 69; 428–437  |
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