Diacyclops parasuoensis Karanovic, Grygier & Lee 2013

Figure 9.Diacyclops parasuoensis sp. n., holotype female: A habitus, dorsal view B habitus, lateral view C antennula, ventral view D antenna, dorsal view. Arabic numerals indicating sensilla and pores presumably homologous to those in Diacyclops ishidai sp. n. Roman numerals indicating pores not present in Diacyclops ishidai sp. n. Arrows pointing most prominent specific features. Scale bars 100 μm.

Figure 10.Diacyclops parasuoensis sp. n., holotype female: A cephalothoracic shield, lateral view B cephalothorax, dorsal view C urosome, ventral view. Arabic numerals indicating sensilla and pores presumably homologous to those in Diacyclops ishidai sp. n. Arrows pointing most prominent specific features. Scale bars 100 μm.

Figure 11.Diacyclops parasuoensis sp. n., holotype female: A labrum, anterior view B mandibula, anterior view C quadricuspidate ventralmost tooth of mandibula, posterior view D maxillula, posterior view E maxillular palp, anterior view F maxilla, anterior view G basis and endopod of maxilla, posterior view H maxilliped, posterior view I first swimming leg, anterior view J endopod of second swimming leg, anterior view K third swimming leg, anterior view. Arrows pointing most prominent specific features. Scale bar 100 μm.

Figure 12.Diacyclops parasuoensis sp. n., A–B holotype female C–D allotype male. A fourth swimming leg, anterior view B fifth leg, anterior view C urosome, ventral view D cephalothorax, dorsal view. Arabic numerals indicating sensilla and pores presumably homologous to those in Diacyclops ishidai sp. n. Arrows pointing most prominent specific features. Scale bars 100 μm.

Figure 13.Diacyclops parasuoensis sp. n., allotype male: A habitus, dorsal view B urosome, lateral view C antennula, flattened and slightly uncoiled, ventral view D sixth leg, ventro-lateral view. Arabic numerals indicating sensilla and pores presumably homologous to those in Diacyclops ishidai sp. n. Roman numerals indicating pores not present in Diacyclops ishidai sp. n. Arrows pointing most prominent specific features. Scale bars 100 μm.

Figure 26.Scanning electron micrographs, A–C Diacyclops ishidai sp. n. D–E Diacyclops parasuoensis sp. n. F Diacyclops suoensis Ito, 1954: A anal somite and caudal rami, dorsal view, paratype female 1 B preanal and anal somites, lateral view, paratype female 2 C last two exopodal segments of second swimming legs, lateral view, paratype female 2 D anal somite and caudal rami, lateral view, paratype female E sixth leg, lateral view, paratype female F labrum and maxillulae, ventral view. Scale bars 20 μm (A, B, D, F) and 10 μm (C, E).

Figure 27.Light photograph of four sympatric Korean species of the Diacyclops/Acanthocyclops complex from Seomjin River: A Acanthocyclops sensitivus (Graeter & Chappuis, 1914), two adult females B Diacyclops languidoides s.l. (Lilljeborg, 1901), two adult females C Diacyclops parasuoensis sp. n., two adult females D Diacyclops hanguk sp. n., two adult females.