taxonID	type	description	language	source
8F4487BAFF95FF95FF6AB61C3286FE8C.taxon	materials_examined	Type species: Hemiclepsis siamensis Oka, 1917. https: // zoobank. org / urn: lsid: zoobank. org: act: C 1 BC 63 F 5 - D 3 BE- 498 E-BD 47 - 431 C 4 F 8 B 2187	en	Bolotov, Ivan N., Eliseeva, Tatyana A., Kondakov, Alexander V., Coi, S, ., .,., ., ., .,., O., .,., O. (2022): A new freshwater leech genus from Southeast Asia (Hirudinea: Glossiphoniidae). Ecologica Montenegrina 56: 1-9, DOI: 10.37828/em.2022.56.1, URL: http://dx.doi.org/10.37828/em.2022.56.1
8F4487BAFF95FF95FF6AB61C3286FE8C.taxon	diagnosis	Diagnosis: Medium-sized leeches; one pair of eyes on somite III; mid-body somites triannulate; mouth pore apical on the rim of oral sucker; salivary glands compact, esophageal glands present, ovate; seven pairs of crop caeca; six pairs of testisacs; male and female gonopores separated by two annuli: male gonopore on Xa 3 / XIa 1 or XIa 1 / a 2, female gonopore on XIa 2 / a 3 or XIa 3 / XIIa 1. Phylogenetically, the new genus represents a well-supported clade, which is distant from the African Placobdelloides, including its type species P. multistriatus.	en	Bolotov, Ivan N., Eliseeva, Tatyana A., Kondakov, Alexander V., Coi, S, ., .,., ., ., .,., O., .,., O. (2022): A new freshwater leech genus from Southeast Asia (Hirudinea: Glossiphoniidae). Ecologica Montenegrina 56: 1-9, DOI: 10.37828/em.2022.56.1, URL: http://dx.doi.org/10.37828/em.2022.56.1
8F4487BAFF95FF95FF6AB61C3286FE8C.taxon	etymology	Etymology: The name of the new genus is combined from two words: ‘ Orient ’ (reference to its range within the Oriental Region) and ‘ bdelloides ’ (reference to the former generic placement of this clade in the genus Placobdelloides). Species with new combinations: Orientobdelloides siamensis (Oka, 1917) gen. & comb. nov.; O. sirikanchanae (Trivalairat, Chiangkul & Purivirojkul, 2019) comb. nov.; O. tridens (Chiangkul, Trivalairat, Kunya & Purivirojkul, 2021) comb. nov.	en	Bolotov, Ivan N., Eliseeva, Tatyana A., Kondakov, Alexander V., Coi, S, ., .,., ., ., .,., O., .,., O. (2022): A new freshwater leech genus from Southeast Asia (Hirudinea: Glossiphoniidae). Ecologica Montenegrina 56: 1-9, DOI: 10.37828/em.2022.56.1, URL: http://dx.doi.org/10.37828/em.2022.56.1
8F4487BAFF95FF95FF6AB61C3286FE8C.taxon	biology_ecology	Hosts: Freshwater turtles (Trivalairat et al. 2019; Chiangkul et al. 2018, 2020, 2021 a).	en	Bolotov, Ivan N., Eliseeva, Tatyana A., Kondakov, Alexander V., Coi, S, ., .,., ., ., .,., O., .,., O. (2022): A new freshwater leech genus from Southeast Asia (Hirudinea: Glossiphoniidae). Ecologica Montenegrina 56: 1-9, DOI: 10.37828/em.2022.56.1, URL: http://dx.doi.org/10.37828/em.2022.56.1
8F4487BAFF95FF95FF6AB61C3286FE8C.taxon	distribution	Distribution: Thailand and southeastern China.	en	Bolotov, Ivan N., Eliseeva, Tatyana A., Kondakov, Alexander V., Coi, S, ., .,., ., ., .,., O., .,., O. (2022): A new freshwater leech genus from Southeast Asia (Hirudinea: Glossiphoniidae). Ecologica Montenegrina 56: 1-9, DOI: 10.37828/em.2022.56.1, URL: http://dx.doi.org/10.37828/em.2022.56.1
8F4487BAFF95FF95FF6AB61C3286FE8C.taxon	discussion	Comments: Other Southeast and East Asian species currently placed in the genus Placobdelloides cannot be transferred to the new genus due to significant morphological differences. Generally, P. okadai, P. okai, and P. stellapapillosa lack esophageal glands. Moreover, P. okadai and P. okai share one pair of eyes in II or at II / III (Moore 1930; Lai & Chen 2010), whereas P. stellapapillosa has one pair of eyes on somite I or II and prominent star-like papillae (Govedich et al., 2002). The generic assignment of these taxa could be clarified in the future on the basis of DNA sequence data. A close relationship of African species with those from Australia and New Zealand is also rather doubtful. For example, P. bancrofti (Best, 1931) from Australia may also belong to a separate genus because it differs from other Placobdelloides species by having one annulus between gonopores (McKenna et al. 2005). It is clear that the rest of the Placobdelloides species are still a paraphyletic assemblage, which needs future revision by means of an integrative taxonomic approach.	en	Bolotov, Ivan N., Eliseeva, Tatyana A., Kondakov, Alexander V., Coi, S, ., .,., ., ., .,., O., .,., O. (2022): A new freshwater leech genus from Southeast Asia (Hirudinea: Glossiphoniidae). Ecologica Montenegrina 56: 1-9, DOI: 10.37828/em.2022.56.1, URL: http://dx.doi.org/10.37828/em.2022.56.1
