_____________ Mun. Ent. Zool. Vol. 2, No. 1, January 2007___________ 79 REDESCRIPTION OF MICROCYCLOPS CUNNINGTONI (G.O. SARS, 1909) (COPEPODA, CYCLOPOIDA) Iskandar M. Mirabdullayev* * Institute of Zoology, Niyazov str. 1, Tashkent, 700095, UZBEKISTAN. E-mail: iskandar@tps.uz [Mirabdullayev, I. M. 2007. Redescription of Microcyclops cunningtoni (G. O. Sars, 1909) (Copepoda, Cyclopoida). Munis Entomology & Zoology 2 (1): 79-85] ABSTRACT: Microcyclops cunningtoni, a poorly known cyclopoid, is redescribed using specimens from Lake Tanganyika, the type locality. A differential diagnosis is presented. KEY WORDS: Cyclopoida, Microcyclops cunningtoni, redescription, Lake Tanganyika. The taxonomy of the genus Microcyclops is extremely confusing. There are many species which are inadequately described. Microcyclops cunningtoni (G.O. Sars, 1909) is one of the most poorly known representatives of the genus Microcyclops Claus, 1893. The species was originally described from Lake Tanganyika (Sars, 1909), and is so far known only from this waterbody. The original and subsequent descriptions by Kiefer (1929) and Lindberg (1951) are inadequate from the point of view of modern copepod taxonomy. In this paper I redescribe the female and male of M. cunningtoni based on specimens identified by K. Lindberg from Lake Tanganyika. MATERIAL AND METHODS Material examined: two females and one male from the lake Tanganyika, from the K. Lindberg Collection in the Royal Belgian Institute of Natural Sciences, Brussels. All drawings were made using a drawing tube. Designations of furcal setae are given as follows: Ti, innermost apical furcal seta, Te, outer apical furcal seta, Sd, dorsal furcal seta. Pereopods (legs) 1-5 are designated as P1-P5, endopodite as enp. RESULTS Microcyclops cunningtoni (G.O. Sars) Fem ale. Body length 700 μm. Body widest at posterior part of cephalothorax, tapered anteriorly. Postero-lateral margins of 4 th and 5 th pedigerous somites rounded (Fig. 1). Lateral sides of 5 th thoracic somite without ornamentation. Genital double-somite about as long as wide. Shape of seminal receptacle as in Fig. 2. Posterior margin of anal somite bearing two groups of 15 spinules on ventral and lateral sides (Figs. 3- 4). Anal operculum moderately developed, convex (Fig. 3).