New earthworm species of the genus Amynthas Kinberg, 1867 from Thailand (Clitellata: Megascolecidae)

Abstract

Four new species of terrestrial earthworms from the zebrus-group in the genus Amynthas Kinberg, 1867, are described from Nan province, north Thailand: Amynthas phatubensis sp. n., from Tham Pha Tub Arboretum, Amynthas tontong sp. n., from Tontong Waterfall, Amynthas borealis sp. n., from Chaloemprakiat district, and Amynthas srinan sp. n., from Srinan National Park.After comparing with the two closely related Laos species Amynthas chandyi Hong, 2008 and Amynthas namphouinensis Hong, 2008, the four new species show clear morphological differences, and also it is confirmed that there are no previous records of the species described here. Amynthas phatubensis sp. n. is the largest (longest) sized of these earthworms and is the only species that lives in limestone habitats. The genital characters are different among them and also from the two Laotian species. Molecular systematics would be a good method for further analysis of the diversity and species boundaries in SE Asian Amynthas.

Seven new species of the earthworm genus Metaphire Sims & Easton, 1972 from Thailand (Clitellata: Megascolecidae)

“…Several surveys of terrestrial earthworms in Thailand have been published (Gates 1939(Gates , 1972Somniyam & Suwanwaree 2009;Bantaowong et al 2011aBantaowong et al , 2011bBlakemore 2011;Bantaowong et al 2014), but many localities in Thailand and nearby areas and various types of microhabitats are still unexplored. Recently, Bantaowong et al (2014) summarized the knowledge about the Thailand earthworm fauna and reported 45 species.…”

Four new terrestrial earthworm species from the northeast Thailand (Oligochaeta, Megascolecidae)

“…The following abbreviation used in the figures of the anatomy are as appeared in Bantaowong et al (2011a , b ): sp , spermathecal pores; fp , female pore; gm , genital markings; mp , male pores; sc , spermathecae; sv , seminal vesicles; pg , prostate gland; ic , intestinal caeca.…”

The semi-aquatic freshwater earthworms of the genus Glyphidrilus Horst, 1889 from Thailand (Oligochaeta, Almidae) with re-descriptions of several species

“…The following abbreviations used in the descriptions of anatomy are as appeared in Bantaowong et al (2011a, b), Chanabun et al (2011, 2012a, b): wi , wings; gm , genital markings; he , hearts; sv , seminal vesicles; sc , spermathecae; ov , ovaries; np , nephridia. …”