<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>New cercariae similar to those of Paracoenogonimus (Cyathocotylidae, Prohemistomatinae), have been found in gastropods Amuropaludina and Cipangopaludina from reservoirs of the Primorsky Region (southern Far East of Russia). Two species of freshwater fishes (Pseudorasbora parva and Perccottus glenii) were experimentally-infected second intermediate hosts. Adults reared in chicken, Gallus gallus dom. They belong to a new species, Paracoenogonimus ussuriensis sp. n. They differ from those of P. szidati (Anderson, 1914) and Mesostephanus appendiculatus (Ciurea, 1916) (=P. skworzowi (Petrov, 1950) sensu Sudarikov 1961) by the size of the body, pharynx and ovary and, further, from the latter by the size of the suckers and testes. Adults differ from P. ovatus Katsurada, 1914 by the smaller dimensions of the oral sucker, pharynx and testes, and also by the absence of anterior interval between vitelline follicles.</p></abstract>

New cercariae similar to those of Paracoenogonimus (Cyathocotylidae, Prohemistomatinae), have been found in gastropods Amuropaludina and Cipangopaludina from reservoirs of the Primorsky Region (southern Far East of Russia). Two species of freshwater fishes (Pseudorasbora parva and Perccottus glenii) were experimentally-infected second intermediate hosts. Adults reared in chicken, Gallus gallus dom. They belong to a new species, Paracoenogonimus ussuriensis sp. n. They differ from those of P. szidati (Anderson, 1914) and Mesostephanus appendiculatus (Ciurea, 1916) (=P. skworzowi (Petrov, 1950) sensu Sudarikov 1961) by the size of the body, pharynx and ovary and, further, from the latter by the size of the suckers and testes. Adults differ from P. ovatus Katsurada, 1914 by the smaller dimensions of the oral sucker, pharynx and testes, and also by the absence of anterior interval between vitelline follicles.

Life-cycle of Paracoenogonimus ussuriensis sp. n. (Digenea: Cyathocotylidae) in the Primorsky region (southern Far East, Russia)

Institute of Biology and Soil Sciences, Far East Branch of the Russian Academy of Sciences, prospect 100-letija, 159, Vladivostok, 690022, Russia

Helminthologia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

New cercariae similar to those of Paracoenogonimus (Cyathocotylidae, Prohemistomatinae), have been found in gastropods Amuropaludina and Cipangopaludina from...

Life-cycle of Paracoenogonimus ussuriensis sp. n. (Digenea: Cyathocotylidae) in the Primorsky region (southern Far East, Russia)

Published Online: Jun 21, 2009

Page range: 100 - 106

DOI: https://doi.org/10.2478/s11687-009-0020-0

Keywords
Paracoenogonimus ussuriensis sp. n., life-cycle, sporocyst, cercaria, metacercaria, adult worm, taxonomy

© 2009 Institute of Parasitology, SAS, Košice, Slovakia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Life-cycle of Paracoenogonimus ussuriensis sp. n. (Digenea: Cyathocotylidae) in the Primorsky region (southern Far East, Russia)

Published Online: Jun 21, 2009

Page range: 100 - 106

DOI: https://doi.org/10.2478/s11687-009-0020-0

KeywordsParacoenogonimus ussuriensis sp. n., life-cycle, sporocyst, cercaria, metacercaria, adult worm, taxonomy

© 2009 Institute of Parasitology, SAS, Košice, Slovakia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Paracoenogonimus ussuriensis sp. n., life-cycle, sporocyst, cercaria, metacercaria, adult worm, taxonomy