<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>Gravid females of the little-known dracunculoid nematode Mexiconema liobagri Moravec et Nagasawa, 1998 (Daniconematidae), a parasite of the rare endemic catfish Liobagrus reinii Hilgendorf (Amblycipitidae), were found in the body cavity of this fish from two new localities in Japan: the Takami River at Kotsugawa, Higashiyoshino, Nara Prefecture and the Tenryu River at Ina, Nagano Prefecture, representing the second record of this nematode species since its original description. Light and scanning electron microscopical examinations of these specimens enabled us to supplement the original description of M. liobagri and to recognise biometrical variability in this species. Details of the cephalic structure of M. liobagri (presence of the small triangular mouth armed with six denticles, surrounded by a pair of large lateral amphids and four submedian pairs of small cephalic papillae) are described for the first time. In addition to M. liobagri, another specific nematode parasite, Rhabdochona japonica Moravec, 1975, was recorded in the intestine of L. reinii from the Takami River.</p></abstract>

Gravid females of the little-known dracunculoid nematode Mexiconema liobagri Moravec et Nagasawa, 1998 (Daniconematidae), a parasite of the rare endemic catfish Liobagrus reinii Hilgendorf (Amblycipitidae), were found in the body cavity of this fish from two new localities in Japan: the Takami River at Kotsugawa, Higashiyoshino, Nara Prefecture and the Tenryu River at Ina, Nagano Prefecture, representing the second record of this nematode species since its original description. Light and scanning electron microscopical examinations of these specimens enabled us to supplement the original description of M. liobagri and to recognise biometrical variability in this species. Details of the cephalic structure of M. liobagri (presence of the small triangular mouth armed with six denticles, surrounded by a pair of large lateral amphids and four submedian pairs of small cephalic papillae) are described for the first time. In addition to M. liobagri, another specific nematode parasite, Rhabdochona japonica Moravec, 1975, was recorded in the intestine of L. reinii from the Takami River.

Redescription of the female of Mexiconema liobagri (Nematoda: Daniconematidae), a little-known parasite of the rare endemic catfish Liobagrus reinii (Amblycipitidae), in Japan

Institute of Parasitology, Biology Centre of the Academy of Sciences of the Czech Republic, Branišovská 31, 370 05, České Budějovice, Czech Republic

Nagano Prefectural College, 8-49-7 Miwa, Nagano-shi, Nagano, 380-8525, Japan

Helminthologia

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

Gravid females of the little-known dracunculoid nematode Mexiconema liobagri Moravec et Nagasawa, 1998 (Daniconematidae), a parasite of the rare endemic...

Redescription of the female of Mexiconema liobagri (Nematoda: Daniconematidae), a little-known parasite of the rare endemic catfish Liobagrus reinii (Amblycipitidae), in Japan

Publicado en línea: 05 jun 2008

Páginas: 106 - 108

DOI: https://doi.org/10.2478/s11687-008-0020-5

Palabras clave
parasitic nematode, Mexiconema, catfish, Liobagrus, Japan

© 2008 Institute of Parasitology, SAS, Košice, Slovakia

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

Redescription of the female of Mexiconema liobagri (Nematoda: Daniconematidae), a little-known parasite of the rare endemic catfish Liobagrus reinii (Amblycipitidae), in Japan

Publicado en línea: 05 jun 2008

Páginas: 106 - 108

DOI: https://doi.org/10.2478/s11687-008-0020-5

Palabras claveparasitic nematode, Mexiconema, catfish, Liobagrus, Japan

© 2008 Institute of Parasitology, SAS, Košice, Slovakia

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

Palabras clave
parasitic nematode, Mexiconema, catfish, Liobagrus, Japan