Fig 1.
Distribution of Spelaeochthonius species in East Asia.
Distributions of species are followed by [8, this study]. Maps are generated by the combination of USGS GMTED2010 and Natural Earth, which comply with CC BY 4.0.
Fig 2.
Distribution of Spelaeochthonius species in South Korea.
Distributions of species are followed by [8, this study]. Maps are generated by the combination of USGS GMTED2010 and Natural Earth, which comply with CC BY 4.0.
Fig 3.
Images of caves in South Korea.
A. Dugi-gul cave; B. Yami-gul cave.
Fig 4.
Carapace and coxa of pseudotyrannochthoniids.
A. Carapace of Spelaeochthonius; B. Coxa of Spelaeochthonius; C. Carapace of Centrochthonius; D. Coxa of Centrochthonius; E. Carapace of Allochthonius; F. Coxa of Allochthonius. Square boxes indicate the position of coxal spines, and circles indictae the position of intercoxal tubercles.
Fig 5.
Habitus of Spelaeochthonius dugigulensis sp. nov.
A. Holotype male, dorsal view; B. Holotype male, ventral view; C. Paratype female, dorsal view; D. Paratype female, ventral view. Scale bar: 1 mm.
Fig 6.
Drawings of Spelaeochthonius dugigulensis sp. nov.
A. Carapace, dorsal view; B. Coxal spines; C. Coxa; D. Chelicera, dorsal view; E. Right pedipalp, dorsal view; F. Right chela, lateral view. Scale bars: 0.5 mm (A, C–F); 0.05 mm (B).
Fig 7.
Habitus of Spelaeochthonius geumgulensis sp. nov.
A. Male, dorsal view; B. Male, ventral view; C. Female, dorsal view; D. Female, ventral view. Scale bar: 1 mm.
Fig 8.
Drawings of Spelaeochthonius geumgulensis sp. nov.
A. Carapace, dorsal view; B. Coxal spines; C. Leg Coxae I-IV; D. Chelicera, dorsal view; E. Right pedipalp, dorsal view; F. Right chela, lateral view. Scale bars: 0.5 mm (A, C–F); 0.05 mm (B).
Fig 9.
Habitus of Spelaeochthonius magwihalmigulensis sp. nov.
A. Female, dorsal view; B. Female, ventral view. Scale bar: 1 mm.
Fig 10.
Drawings of Spelaeochthonius magwihalmigulensis sp. nov.
A. Carapace, dorsal view; B. Coxal spines; C. Leg Coxae I–IV; D. Chelicera, dorsal view; E. Right pedipalp, dorsal view; F. Right chela, lateral view. Scale bars: 0.5 mm (A, C–F); 0.05 mm (B).
Fig 11.
Habitus of Spelaeochthonius yamigulensis sp. nov.
A. Male, dorsal view; B. Male, ventral view. Scale bar: 1 mm.
Fig 12.
Drawings of Spelaeochthonius yamigulensis sp. nov.
A. Carapace, dorsal view; B. Coxal spines; C. Coxa; D. Chelicera, dorsal view; E. Right pedipalp, dorsal view; F. Right chela, lateral view. Scale bars: 0.5 mm (A, C–F); 0.05 mm (B).
Table 1.
Genetic divergences within all species included in this study.
Fig 13.
Phylogenetic analyses of Spelaeochthonius based on maximum likelihood analysis with CO1.