New species of Cucullanus (Nematoda: Cucullanidae), an intestinal parasite of the peacock bass Cichla piquiti (Perciformes: Cichlidae) from the Tocantins River, Brazil
2015
Lacerda, A.C.F. | Takemoto, R.M. | Marchiori, N.C. | Martins, M.L. | Pavanelli, G.C.
Cucullanus tucunarensis n. sp. (Cucullanidae) is described parasitizing the peacock bass Cichla piquiti (Cichlidae) from the Tocantins River, Tocantins State, Brazil. The new species is unique and differs from all its congeners by having a tail tip provided with several sclerotized spine-like processes on its ventral side, present in both the male and female. Furthermore, C. tucunarensis n. sp. is compared with other species of the genus recorded in the same zoogeographical region and in the same group of hosts (Perciformes).
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