Cryptocandona tsukagoshii, Chang, Cheon Young, Lee, Jimin & Smith, Robin J., 2012

Chang, Cheon Young, Lee, Jimin & Smith, Robin J., 2012, Nonmarine ostracods (Crustacea) from South Korea, including a description of a new species of Tanycypris Triebel (Cyprididae, Cypricercinae), Zootaxa 3161, pp. 1-19 : 12-15

Cryptocandona tsukagoshii Smith, 2011

( Fig. 7 B)

2011 Cryptocandona tsukagoshii n. sp. —Smith: Figs. 5 E–H, 7, 8.

Material examined. One female from a small spring flowing from a limestone outcrop along the banks of a shallow, fast flowing stream at Oksan-ri, Angang-up, Gyeongju-si, Gyeongsangbuk-do (36º01′0 1.7″N, 129º09′35.7″E) (locality 9 on Fig. 1 ), 7 June 2011.

Remarks. Previously this species was only known from one locality in Shiga Prefecture, Japan (Smith 2011), and so is a new record for Korea. In Japan, it was found interstitially in a gravel bar of a river. The dorsal margin of the Korean specimen is slightly more arched and angular than Japanese specimens, but the other features of the carapace and the appendages closely resemble those of the type specimens.

Genus Fabaeformiscandona Krsti ć

Figures

FIGURE 1. Localities. 1, Daegwanryeong Hill, Gangreung; 2, Deokgu Valley, Uljin; 3, estuary of Wangpicheon Stream, Uljin; 4, Yecheon; 5, Okgye Valley, Yeongdeok; 6, estuary of Goggangcheon Stream, Pohang; 7, Guryongpo, Pohang; 8, Hyeongsan River, Gyeongju; 9, Oksancheon Stream, Gyeongju; 10, Gyeongsan; 11, Upo-nup Swamp (Jjokjibeol), Changnyeong; 12, Hambak Mountain, Changnyeong; 13, Jilnal-nup Swamp, Haman; 14, Junam Reservoir, Changwon; 15, Samnak Wetland Park, the Nakdong River, Busan; 16, Dadaepo Beach, Busan.

FIGURE 7. A, Cryptocandona brehmi, left valve, internal view (DB 40022). B, Cryptocandona tsukagoshii, right valve, internal view (DB 40023). C – D, Fabaeformiscandona japonica. C, male right valve, internal view (DB 40020). D, female right valve, internal view (DB 40024). E – G, Physocypria nipponica. E, left lateral view of whole carapace (DB 40025). F, left valve, internal view (DB 40026). G, right valve, internal view (DB 40026). H – K, Vestalenula cylindrica. H, right valve, internal view (DB 40027). I, left valve, internal view (DB 40027). J, dorsal view, anterior to right (DB 40028). K, right valve, ventral view (DB 40027). Scale bar = 333 µm for A – B, 340 µm for C – D, 257 µm for E – G, 162 µm for H – K.

FIGURE 5. A – D, Dolerocypris ikeyai. A, left valve, internal view (DB 40015). B, right valve, internal view (DB 40015). C, whole carapace, right lateral view (DB 40016). D, whole carapace, dorsal view, anterior to left (DB 40016). E – H, Eucypris pigra. E, whole carapace, right lateral view (DB 40017). F, whole carapace, dorsal view, anterior to left (DB 40017). G, left valve, internal view (DB 40018). H, right valve, internal view (DB 40018). I – J, Scottia pseudobrowniana. I, right valve, external view (DB 40019). J, left valve, internal view (DB 40019). Scale bar = 407 µm for A – H, 238 for I – J.