Philodina lepta Wulfert, 1951

Lee, Sue Yeon, Yoo, Jung Sun & Kim, Seung Tae, 2017, New records of 13 rotifers including Bryceella perpusilla Wilts et al., 2010 and Philodina lepta Wulfert, 1951 from Korea, Journal of Species Research 6, pp. 26-37 : 33

11. Philodina lepta Wulfert, 1951 ( Fig. 5)

Philodina lepta : Donner, 1965, p. 227, figs. 164h-i.

Material examined. One specimen found in wet leaf litter and wet mosses around Sangwonsa, Odaesan, Jinbu-myeon, Pyeongchang-gun, Gangwon-do, 37°47 ʹ 18.5 ʺ N 128°33 ʹ 50.6 ʺ E, 25 Sept. 2016.

Diagnosis. Corona slightly wider than cingulum. Trochal discs rather inclined toward sulcus. Sulcus much narrower than pedicel width. Pedicel rather long. Upper lip rimmed, arched and trilobed medially; slightly higher than sulcus base. Cingulum pad slightly narrower than cingulum. Spurs finger-shaped and with acute points; interspace much wider than spur base width.

Measurements. Total length in feeding 161 μm. Corona width 37 μm. Cingulum width 34 μm.

Remarks. The characteristics of the Korean specimen agree well with those in the original description.

This species is rather rare and has been recorded only from three European countries including its type country, Czech Republic ( Donner, 1965). The present study is the first record of this species outside Europe .

World distribution. Czech Republic, Rumania, Poland and Korea.

Deposition. In a permanent slide, deposited in the collection of the National Institute of Biological Resources, Incheon, Korea ( ZIIYIV0000004844 ) .