Candidiopotamon Bott, 1967

Shih, Hsi-Te, Naruse, Tohru & Schubart, Christoph D., 2023, Molecular evidence and differences in gonopod morphology lead to the recognition of a new species of the freshwater crab genus Candidiopotamon Bott, 1967 (Crustacea, Brachyura, Potamidae) from eastern Taiwan, ZooKeys 1179, pp. 169-196 : 169

Genus Candidiopotamon Bott, 1967

Candidiopotamon Bott, 1967: 210; Bott 1970: 189; Minei 1974: 245; Dai 1999: 154; Shy and Yu 1999: 95; Ng et al. 2008: 161; Sasaki 2019: 11551; Shy et al. 2020: 1.

Type species.

Potamon (Potamon) rathbuni De Man, 1914.

Distribution.

Taiwan and the Ryukyu Islands (Okinawa, Kumejima, and Tokashiki islands) of Japan.

Remarks.

The genus Candidiopotamon was erected by Bott (1967) with the type species, Potamon (Potamon) rathbuni De Man, 1914, and the genus was named from the type locality of the type species, Candidius-See (= Sun Moon Lake, Rihyuetan) in Nantou Co. (= County), central-western Taiwan. Candidiopotamon was placed in the family Sinopotamidae Bott, 1970, by Bott (1970), but the Sinopotamidae was synonymized under the Potamidae by Yeo and Ng (2004), and this has been supported by genetic data ( Shih et al. 2009). Following this study, there are now two species in Taiwan ( C. rathbuni in the west and C. penglai sp. nov. in the east) and three from the Ryukyu Islands of Japan ( C. okinawense in Okinawa Island, C. kumejimense in Kumejima Island, and C. tokashikense in Tokashiki Island). Candidiopotamon guangdongense Dai, 1999, claimed to be found in Guangdong, China, but this is a junior synonym of C. rathbuni and was based on incorrect locality labels ( Shih and Ng 2011; Ng et al. 2017; Shy et al. 2020).