Leptopharynx costatus gonohymen Omar &, 2012

Min, Kang-San Kim and Gi-Sik, 2018, New records of nine ciliates (Protozoa: Ciliophora) from Korea: Brief descriptions and remarks, Journal of Species Research 7 (4), pp. 315-322 : 320-321

8. Leptopharynx costatus gonohymen Omar &

Foissner, 2012 ( Fig. 8 )

Material examined. Soil sample taken from Wangsan-ri, Jung-gu, Incheon, South Korea (37°26 ʹ 47 ʺ N 126°23 ʹ 40 ʺ E) on February 2018 .

Diagnosis. Cell size 30-40 × 28-35 μm in protargol preparations; 9 somatic and 4 preoral ciliary rows with an average of 183; 2 contractile vacuole; kinety 1 consisting of widely spaced dikinetids; adoral membranelle 1 absent; membranelles 2 and 3 right-angled to each other.

Remarks. Omar and Foissner (2012) found the uniqueness of the Floridian population within the Leptopharynx costatus and suggested its subspecies, L. costatus gonohymen . Leptopharynx costatus gonohymen can be distinguished from L. costatus costatus by the numbers of dikinetids (7-8 vs. 11-15) and monokinetids (1 vs. 0-2) in kinety 1, while the Korean population has 7 dikinetids and 1 monokinetid in kinety 1 ( Fig. 8D ) ( Omar and Foissner, 2012).

Deposition. Two voucher slides with protargol-impregnated specimens are deposited in the National Institute of Biological Resources in Korea (NIBRPR0000109452, NIBRPR0000109453).

Figures

Fig. 8. Photomicrographs of Leptopharynx costatus gonohymen from life (A, B) and after protargol impregnation (C, D). (A) Right side view. (B) Arrow indicates preoral kineties. (C) Right side view. (D) Arrow indicates monokinetid in kinety 1, and arrowheads mark adoral membranelles. Scale bar=20μm.