, Volume 25, Issue 3, pp 159-186

Monogeneans of the genus Cichlidogyrus Paperna, 1960 (Dactylogyridae: Ancyrocephalinae) from cichlid fishes of Lake Kariba (Zimbabwe) with descriptions of five new species

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Abstract

The gills of six species of cichlid present in Lake Kariba (Zimbabwe) revealed the presence of twelve species of Cichlidogyrus, five being new species. The parasites were as follows: C. halli (Price & Kirk, 1967) in Oreochromis mortimeri (main host) and Serranochromis macrocephalus (occasional host); C. tilapiae Paperna, 1960 and C. longicornis Paperna & Thurston, 1969 in O. mortimeri only; C. sclerosus Paperna & Thurston, 1969 in O. mortimeri (main host) and in S. macrocephalus (occasional host); C. haplochromii Paperna & Thurston, 1969 in Pharyngochromis darlingi only; C. tiberianus Paperna, 1960 in Tilapia rendalli only; C. dossoui n. sp. in T. rendalli (type-host) and in O. mortimeri and S. macrocephalus (occasional hosts); C. karibae n. sp. in S. codringtonii (type-host) and in O. mortimeri (occasional host); C. zambezensis n. sp. in S. macrocephalus (type-host) and in O. mortimeri (occasional host); C. quaestio n. sp. in T. rendalli (type-host) and in S. codringtonii and S. macrocephalus (occasional hosts); C. philander n. sp. in Pseudocrenilabrus philander. C. longicornis gravivaginus Paperna & Thurston, 1969, found in O. mortimeri, is elevated to specific status.

Descriptions, measurements and drawings of the sclerotised parts are given for each species and compared with data in the literature. A key for the identification of the Cichlidogyrus species present in Lake Kariba is proposed.