Centropyxis cassis (Wallich, 1864) Deflander, 1929

Jung, Jongwoo, 2020, Twelve unrecorded species of testate amoebae discovered from Korea, Journal of Species Research 9 (4), pp. 462-466 : 463

2. Centropyxis cassis (Wallich, 1864) Deflander, 1929

(ḪĒAEDZNjflffiNj) ( Fig. 1B )

Material examined. One individual ( VQUMIV 000000 2985): Korea, Jeju-do, Jeju-si, Hallim-eup, Sangmyeongri , 13 Oct. 2016, 33°21′27.92″N 126°16′22.02″E, collect- ed by JJ; one individual ( FKRUPR0000000163 ): Korea, Gyeonggi-do, Goyang-si , Deokyang-gu , Eupnae-ro , 5-82, Gongreungcheon Stream , 15 May 2018, 37°41′49.42″N 126°54′01.08″E, collected by JJ; four individuals ( FKRUPR0000000181-4 ): Korea, Gyeonggi-do, Yangju-si , Jangheung-myeon , Bugok-ri , 480-1, Gongreungcheon Stream , 15 May 2018, 37°43′28.12″N 126°58′35.44″E, collected by JJ; one individual: Korea, Incheon, Ganghwa-gun , Gilsang-myeon , Jangheung-ri , Jangheung Reservoir , 14 Apr. 2019, 37°37′22.62″N 126°30′05.50″E, collected by JJ; two individuals: Korea, Incheon, Ganghwa-gun , Yangdo-myeon , Dojang-ri , Giljeong Stream , 27 Sep. 2019, 37°38′55.58″N 126°27′57.87″E, collected by JJ; one individual: Korea, Incheon, Ganghwa-gun , Yangdo-myeon , Insan-ri , Insan Reservoir , 27 Sep. 2019, 37°41′54.20″N 126°25′52.46″E, collected by JJ .

Diagnosis. Shell medium, broadly elliptic, hemispherical in lateral view, flattened above the aperture. Aperture wide, semi-circular, encrusted with several large xenosomes in the anterior margin.

Figures

Fig. 1. Testate Amoebae. A, Arcella crenulata Deflandre, 1928, apertural view; B, Centropyxis cassis (Wallich, 1864), lateral view; C. Centropyxis delicatula Penard, 1902, apertural view; D, Centropyxis hirsuta Deflander, 1929, apertural view; E, Centropyxis orbicularis Deflandre, 1929, lateral view; F, Centropyxis sylvatica (Deflandre, 1929), apertural view; G, Cyclopyxis eurystoma Deflandre, 1929, apertural view; H, Cyclopyxis intermedia Kufferath, 1932, apertural view; I, Cyclopyxis kahli (Deflandre, 1929), apertural view; J, Difflugia diafana Vucetich, 1987, lateral view; K, Difflugia manicata Penard, 1902, lateral view; L, Awerintzewia cyclostoma Schoutenden, 1906, lateral view. Scale bars: A-L=50μm.