Loxoconcha pulchra Ishizaki, 1968

Lee, Sue Yeon, Yoo, Jung Sun & Kim, Seung Tae, 2017, One new species and three records of cytheroid ostracods (Crustacea, Ostracoda) from Korea, Journal of Species Research 6, pp. 38-50 : 42-43

Loxoconcha pulchra Ishizaki, 1968 ( Figs. 5-6)

Synonymy. Loxoconcha pulchra- Ishizaki (1968): p. 31, Pl. 1, Fig. 16; Pl. 7, Figs. 19, 20

Loxoconcha pulchra Ishizaki-Nakao & Tsukagoshi (2002) : p. 99, Figs 17, 18.

Material Examined. Two males dissected on slides ( NIBRIV0000753778 , NIBRIV0000811372 ), shell of one male on SEM stub, of the other on micropaleontological slide; two females dissected on slides ( NIBRIV 0000811373 , NIBRIV0000811374 ), shell of one on SEM slide of the other on micropaleontological slide. Numerous specimens in alcohol ( NIBRIV0000811375 ), from Rivermouth of Aninjin-ri, Gangwon-do, 37°44 ʹ 23.3 ʺ N, 128°59 ʹ 08.5 ʺ E, 04 Oct. 2015, collected by Akira Tsukagoshi, Hayato Tanaka and Hyunsu Yoo.

Description. Carapace rhomboidal in lateral view. Strong sexual dimorphism with males being more elongated ( Fig. 5A, B), and females more tumid ( Fig. 5C, D). Dorsal margin almost straight with the greatest height in females situated anteriorly. Anterior margin rounded, posterior margin slightly cut off from bellow. Ventral margin concave. Surface strongly ornamented with numerous fine pits and scattered sieve-type pore system. A1 ( Fig. 6F) 5-segmented with fourth and fifth segments fused, anterior setae short and claw like. A2 ( Fig. 6E) 4-segmented; third segment with three setae postero-medially, one seta antero-medially, and one seta poster-distally; terminal segment with two almost equally long claws. All walking legs ( Fig. 6 A-D) 4-segment- ed, all with two setae dorsally on the proximal end and one proximal ventral seta. Hemipenis robust with wide, triangular distal lobe ( Fig. 7A). UR consisting of a lobe and two setae ( Fig. 7B).