The GenusPseudanisakisLayman & Borovkova, 1926 (Nematoda: Ascaridida)

Abstract

A history of the genus Pseudanisakis Layman & Borovkova, 1926, is given. After studies on two species of the genus with both light and scanning electron microscopes, the genus is re-defined. A nomen novum, P. tricupola, is proposed for the type-species, P. rotundata (Rud., 1819) Mosgovoi, 1950, and another, P. baylisi, is proposed for Eustoma rotundatum (Rud., 1819) of Punt (1941). These two species are re-described, and a larval stage of P. tricupola is described for the first time. P. rajae Yamaguti, 1941, sensu nov. is included in the genus. Anacanthocheilus australis of Johnston & Mawson (1945) is placed in the genus Acanthocheilus Molin, 1858. Acanthocheilus and Pseudanisakis are distinguished, and aspects of their life-histories commented upon.