Abstract
Cucullanus faliexae n. sp. is described from the moray eel Gymnothorax javanicus (Muraenidae) collected in Rangiroa (Tuamotu Islands, French Polynesia) in the South Pacific and is reported from the same host collected in Moorea (Society Islands, French Polynesia). This nematode is distinguished from its congeners by its protrubant anus and the presence of a single pair of subdorsal postanal papillae. Cucullanus faliexae resembles C. laurotravassosi from which it is distinguished by the farther anterior position of the first pair of male caudal preanal papillae and by the greater size of its spicules. Cucullanus bourdini Petter and Le Bel, 1992 is reported from the coral reef fishes Balistapus undulatus (Balistidae), Lutjanus gibbus (Lutjanidae), and Myripristis kuntee (Holocentridae) from French Polynesia. Additionally, Cucullanus sp. is reported from the coral reef fish Sufflamen bursa (Balistidae) in Moorea and Rangiroa. Given that C. faliexae and C. bourdini have been found in widely disparate locations between which their definitive hosts cannot migrate, it would seem likely that the life cycles of these worms include an intermediate or transport host that has a greater capability for dispersal.
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