A new species of the genus Enoplocotyle (Plateyhelminthes: Monogenea) parasitic on the skin the moray eel Gymnothorax kidako in Japan, with observations on hatching and the oncomiracidium

Publication Type:Journal Article
Year of Publication:1993
Authors:Maisels, FG, Kearn, GC
Journal:Journal of Zoology
Volume:229
Date Published:1993
ISBN Number:1469-7998
Keywords:Ovis ammon, Ovis orientalis
Abstract:

The seasonal variations in grouping patterns of the forest-dwelling Cyprus mouflon were examined over the annual cycle. Most of the trends observed in the size and composition of groupings agree with previous work on open-country living sheep. The main difference between Cyprus mouflon, which live in forest, and wild sheep living in open country, was in the overall group size, which is smaller in Cyprus mouflon. In fact, in their overall group size, Cyprus mouflon seem to follow the pattern of other forest-dwelling ungulates.The anatomy of the monogenean Enoplocotyle kidakoi sp. nov., a skin parasite of the moray eel, Gymnothorax kidako, in Japan, is described. E. kidakoi is readily distinguishable from the other two members of the genus, namely E. minima and E. hawaiiensis, by the structure of the copulatory apparatus, which is supported by two independent tubular sclerites. The oncomiracidium of E. kidakoi is unciliated and has no trace of hamuli or a pseudohaptor. The relationship between Enoplocotyle spp. and other monogeneans is discussed and previous suggestions that Enoplocotyle and the acanthocotylids share a common ancestry are supported. This affinity is recognized by the inclusion of the Enoplocotylidae with the Acanthocotylidae in a newly-defined superfamily, the Acanthocotyloidea. Eggs of E. kidakoi require to make contact with host skin before hatching takes place.

URL:http://dx.doi.org/10.1111/j.1469-7998.1993.tb02654.x
Taxonomic name: 
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