Barbronia gwalagwalensis Westergren & Siddall 2004

• Main Authors: Klass, Anna L., Kondakov, Alexander V., Vikhrev, Ilya V., Bespalaya, Yulia V., Lunn, Zau, Chan, Nyein, Gofarov, Mikhail Y., Bolotov, Ivan N.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Clitellata; Euhirudinea; Salifidae; Barbronia; Barbronia gwalagwalensis; Arctic; Arkhangelsk
• Online Access: https://zenodo.org/record/4778144; https://doi.org/10.5281/zenodo.4778144

Barbronia gwalagwalensis Westergren & Siddall, 2004 Figures 3-6 Type. Holotype, AMNH Annelida 5261, fixed in 10% buffered formalin and stored in 70% ethanol (American Museum of Natural History, New York, USA). Type locality. “ Maia’s Dam, Gwalagwala, a tented-camp near Hoedspruit, South Africa ” (Westergren & Siddall 2004). Material examined. MYANMAR: Salween River drainage, Lake Inle basin, Kyee Phyu Lake, 20.8142°N, 96.9690°E, 23.ii.2018, 2 specimens, fixed in 96% ethanol [voucher RMBH Hir_58_3; one specimen sequenced: COI acc. no. MN 295405]. The sample is deposited in the RMBH — Russian Museum of Biodiversity Hotspots, N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Arkhangelsk, Russia. Morphology of Myanmar’s sample. Small leeches, 10–15 mm long (ethanol-preserved specimens). Body subcylindrical, vermiform, tapering anteriorly and posteriorly. Dorsum light brown. Three pairs of eyespots: first dorsal, on II; second and third pairs dorsolateral on IV, and separated from anterior pair by four complete annuli. Caudal sucker directed ventrally. Clitellum indistinct (juveniles), with male and female gonopores separated by seven and one-half annuli, and with two accessory copulatory pores ventrally: one anterior of the male gonopore at X/XI, and second posterior of the female gonopore at XIII/XIV. Three pairs of pharyngeal stylets. These features correspond well to the protologue of the species, although the type series comprised full-grown adults up to 25 mm long with pronounced clitellum and distinct accessory copulatory pores (Westergren & Siddall 2004). Habitat. The specimens were collected on a submerged bamboo stick and an empty shell of the freshwater mussel species Lamellidens ferrugineus (Annandale) found near the shore of a shallow eutrophic lake with silty bottom and rich aquatic plant assemblages. They co-occurred with the freshwater glossiphonid species Alboglossiphonia sp. (Hirudinida: Glossiphoniidae) [voucher no. RMBH ...