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| Metaphire songkhramensis Chanabun & Panha, sp. nov. from Kong Ngong, Akat Amnuai, Sakon Nakhon Amynthas sakonnakhonensis Chanabun & Panha, sp. nov. from Nong Tuet, Akat Amnuai, Sakon Nakhon Amynthas auriculus Chanabun & Panha, sp. nov. from Phannanikom, Sakon Nakhon in Chanabun, Aoonkum, Seesamut, Bantaowong et Panha, 2023. |
Abstract
Earthworm specimens collected from Sakon Nakhon and Nakhon Phanom, northeast Thailand, were found to contain four new species in the family Megascolecidae, with one species in the genus Metaphire Sims & Easton, 1972, and the other three in the genus Amynthas Kinberg, 1867. These are herein named Metaphire songkhramensis Chanabun & Panha, sp. nov. in the sexthecal houlleti species group, and Amynthas sakonnakhonensis Chanabun & Panha, sp. nov., A. auriculus Chanabun & Panha, sp. nov., and A. bantanensis Chanabun & Panha, sp. nov. in the sexthecal aelianus species group. Metaphire songkhramensis Chanabun & Panha, sp. nov. occurs in dark clay soil of the oxbow lake of the river, Amynthas sakonnakhonensis Chanabun & Panha, sp. nov. occurs in wetland area, A. auriculus Chanabun & Panha, sp. nov. occurs in dark sandy loam habitats of mixed deciduous forest while the following species, A. bantanensis Chanabun & Panha, sp. nov. occurs in sandy loam habitats of paddy fields. Descriptions of the new species, including illustrations of the external and internal morphological characteristics, are provided.
Key words: Amynthas, Metaphire, new species, taxonomy, Thailand
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| Photographs showing the A type locality of Metaphire songkhramensis sp. nov. from Kong Ngong, Akat Amnuai, Sakon Nakhon, Thailand B habitat of the new species covered with small bamboo and small shrubs C casts of the new species, and D coloration of newly collected paratype (CUMZ 3822) after the first preservation step in 30% (v/v) ethanol. Photographs showing the A type locality of Amynthas sakonnakhonensis sp. nov. from Nong Tuet, Samakkee Pattana, Akat Amnuai, Sakon Nakhon, Thailand B living specimen under the stone near casts C coloration of a living paratype, and D coloration of a newly collected paratype (CUMZ 3824) after the first preservation step in 30% (v/v) ethanol. Photographs showing the A type locality of Amynthas auriculus sp. nov. from Wut Tham Kham, Phannanikom, Sakon Nakhon, Thailand B casts of the new species C coloration of a living paratype, and D coloration of a newly collected paratype (CUMZ 3826) after the first preservation step in 30% (v/v) ethanol. |
Ratmanee Chanabun, Anuwat Aoonkum, Teerapong Seesamut, Ueangfa Bantaowong and Somsak Panha. 2023. Four New Terrestrial Earthworm Species from the northeast Thailand (Oligochaeta, Megascolecidae). ZooKeys. 1176: 195-219. DOI: 10.3897/zookeys.1176.106517
