Eight new records of monogonont and bdelloid rotifers from Korea Author Song, Min Ok text Journal of Species Research 2014 2014-02-28 3 1 53 62 http://dx.doi.org/10.12651/jsr.2014.3.1.053 journal article 10.12651/JSR.2014.3.1.053 2713-8615 13145294 1. Encentrum incisum Wulfert, 1936 ( Fig. 1 A-C) Encentrum incisum Wulfert, 1936, pp. 423-425 , figs. 16, 16 a-c (cited from De Smet, 1997 ); Donner, 1970 , p. 226, figs. 13e-f; Koste, 1978 , p. 495, pl. 176, figs. 1 a-e; De Smet, 1997 , pp. 182-184, figs. 503-507, pl. 31, figs. 1-5; Jersabek, 1998 , pp. 67-69, figs. 21-24. Material examined. 2 specimens , a mountain in Gyo-1- dong, Gangneung-si, Gangwon-do (leaf litter, Min Ok Song), 26 Feb, 2013. Description. Body spindle-shaped. Head about 1/2 of trunk length. Integument thin, smooth, transparent and with transverse folds defining head, trunk and foot. Rostrum short, V-shaped ventrally and decurved. Foot conical, short and about 1/6 of trunk length. Toes short, slen- der, about same length as foot, parallel-sided until half of length and tapering to pointed tips. Trophi forcipate type . Rami outline round pyriform, each getting broader until 1/3 from base, abruptly tapering into slender and incurved single tooth after preuncinal tooth; preuncinal tooth long, narrow and sharp, emerging from outer margin of ramus ventrally and projecting towards axis of trophi; another preuncinal tooth present between apical tooth and ventral preuncinal tooth. Fulcrum short, about 2/5 of manubria length. Intramallei short, with round base and tapering ends. Unci stout, single-toothed, about 3/5 of manubria length. Manubria rod-shaped, long, longer than 2-fold of fulcrum length, incurved, knobby distally and expanded proximally. Body length 202 μm. Toe length 19 μm. Distribution. Austria , Germany , Russia and Korea . Remarks. E. incisum has been reported only from Austria , Germany and Russia before the present study ( De Smet, 1997 ). It is similar to E. martoides Fott, 1960 except the following differences: (1) Foot of E. incisum has a single pseudosegment, while that of E. martoides has two pseudosegments, (2) Inner margin of rami is outcurved near posterior 1/ 3 in E. incisum , while it is otherwise in E. martoides , and (3) Gastric glands of E. incisum are not fused nor connected with brain, while they are fused dorsally and connected with brain in E. martoides ( De Smet, 1997 ) .