Lacrymaria marina Kahl, 1933

Lee, Sue Yeon, Yoo, Jung Sun & Kim, Seung Tae, 2017, Brief descriptions of 12 ciliate species previously unrecorded (Protozoa: Ciliophora) in Korea, Journal of Species Research 6, pp. 15-25 : 20-21

7. Lacrymaria marina Kahl, 1933

( Fig. 7)

Material examined. Marine water taken from Hupohang port, Hupo-ri , Hupo-myeon , Uljin-gun, Gyeonsangbuk-do, Korea (N36°40 ʹ 52 ʺ, E129°27 ʹ 23 ʺ) on April 5, 2017 .

Diagnosis. Body size 150-300 × 20-25 μm in vivo; extended spindle to vase-like shape; highly contractible neck; cell colorless; cortical granules colorless, regularly arranged in between somatic kineties; single contractile vacuole, conical shape and located terminally; papillary head with obliquely arranged oral ciliary rows, 10-12 in number; spiral somatic kineties on contracted body, 17- 20 somatic kineties; 1 ellipsoidal macronucleus.

Distribution. China, Germany, Korea (this study).

Remarks. Lacrymaria marina Kahl, 1933 can be separated from L. olor (Müller, 1786) Bory de St. Vincent, 1824 by the number of macronuclear nodules (1 vs. 2), and habitat (saline water vs. freshwater) ( Kahl, 1930).

Lacrymaria marina can be separated from L. nana (Vuxanovici, 1961) Song and Wilbert, 1989 by the number of somatic kineties (15-20 vs. about 13), the shape of contractile vacuole (conical vs. spherical), and the position of the contractile vacuole (terminal vs. subterminal) ( Song and Wilbert, 1989).

Voucher slides. Two slides including protargol-impregnated specimens were deposited at the National Institute of Biological Resources, Korea (NIBRPR0000107906, NIBRPR0000107907).