13. Habrotrocha serpens Donner, 1949 (Fig. 13)

ẹḋữâ충 (ṵAE)

Habrotrocha serpens Donner, 1949, p. 130, fig. 10.

Material examined. Jeongseon-gun (37°15′53.6″N, 128°37′0.2″E), Korea; collected by CH Lee and MO Song on 28 August 2021 .

Deposition. NIBRIV0000895446.

World distribution. Austria, China, Czech Republic, Rumania, Spain and Korea.

Diagnosis. Rostral lamella big, round, wider than rostrum end, and without median notch. Rostrum long; about 1.5 times as long as rostrum width. Head and neck long. Pharyngeal tube about three times as long as trophi length. Trunk cylindrical and slightly wider than neck width. Foot much narrower than trunk, very short; about 1/15 of total length in creeping. Spurs conical, short and with narrow interspace.