, Volume 17, Issue 2, pp 75-80

Dactylostomum cribbi n. sp., a new opecoeline digenean from the Australian freshwater fish Gadopsis marmoratus Richardson

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Abstract

An opecoelid digenean, Dactylostomum cribbi n. sp., is described from the intestine of the freshwater fish Gadopsis marmoratus from Victoria, Australia, and its pathology commented upon. Its systematics is discussed in relation to related opecoelid genera, such as Coitocaecum Nicoll, 1915 (syn. Ozakia Wisniewski, 1933) and Nicolla Wisniewski, 1934, and the species of Dactylostomum Woolcock, 1935 occurring in Australasian waters. D. cribbi is smaller and less elongate than most species of Dactylosto- and Coitocaecum. The zoogeography of this and related forms is commented upon.