Fig. 1. Epistylis semiciculus n in Morphological and molecular identification of epibiontic sessilid Epistylis semiciculus n. sp. (ciliophora, Peritrichia) from Procambarus clarkia (Crustacea, Decapoda) in China

Fig. 1. Epistylis semiciculus n. sp. in vivo. A. Morphotype I stick to the gill of P. clarkia, double arrow shows Carchesium sp., arrow shows the zooids of Poulation I. B. Morphotype II stick to the pereopods of P. clarkia, arrow shows the zooids of Poulation II. Uncontracted zooids of morphotype I. C. Colony of morphotype I. D. Colony of Morphotype II. E. Uncontracted zooids of Morphotype II. F. Stalk, arrow shows the transverse striation. G, H. Macronucleus. I. Transverse striations on pellicle. ATB, aboral trochal band; CV, Contractile vacuole; Ma, macronucleus; PD, peristomial disk; PL, peristomial lip. Scale bars: A = 200 μm; B = 3 mm; C = 40 μm; D = 400 μm; E, F, G, H, I = 20 μm.