Display options
Cite
Katahira H, Nagasawa K. Heliconema anguillae Yamaguti, 1935, a physalopterid nematode found in Japanese eels: taxonomic resurrection with a note on the third-stage larva from intertidal crabs in western Japan. Folia Parasitol (Praha). 2015;62doi: 10.14411/fp.2015.028.
Katahira, H., & Nagasawa, K. (2015). Heliconema anguillae Yamaguti, 1935, a physalopterid nematode found in Japanese eels: taxonomic resurrection with a note on the third-stage larva from intertidal crabs in western Japan. Folia parasitologica, 62. https://doi.org/10.14411/fp.2015.028
Katahira, Hirotaka, and Nagasawa, Kazuya. "Heliconema anguillae Yamaguti, 1935, a physalopterid nematode found in Japanese eels: taxonomic resurrection with a note on the third-stage larva from intertidal crabs in western Japan." Folia parasitologica vol. 62 (2015). doi: https://doi.org/10.14411/fp.2015.028
Katahira H, Nagasawa K. Heliconema anguillae Yamaguti, 1935, a physalopterid nematode found in Japanese eels: taxonomic resurrection with a note on the third-stage larva from intertidal crabs in western Japan. Folia Parasitol (Praha). 2015 Jan 01;62. doi: 10.14411/fp.2015.028. PMID: 26040330.
Copy Download .nbib Format: NLM
Share it on

Folia Parasitol (Praha). 2015 Jan 01;62. doi: 10.14411/fp.2015.028.

Heliconema anguillae Yamaguti, 1935, a physalopterid nematode found in Japanese eels: taxonomic resurrection with a note on the third-stage larva from intertidal crabs in western Japan.

Folia parasitologica

Hirotaka Katahira, Kazuya Nagasawa

Affiliations

  1. Graduate School of Environmental Earth Science, Hokkaido University, Sapporo, Hokkaido, Japan;
  2. Graduate School of Biosphere Science, Hiroshima University, Hiroshima, Japan.

PMID: 26040330 DOI: 10.14411/fp.2015.028

Abstract

A parasitic nematode from the stomach of Japanese eel Anguilla japonica Temminck et Schlegel in western Japan, previously identified as Heliconema longissimum (Ortlepp, 1922), was morphologically re-examined and compared with the previous descriptions. In addition, the third-stage larva of this nematode is described, based on the specimens of encapsuled larvae found in musculature of two crabs, Hemigrapsus sp. and Perisesarma bidens (De Haan), caught from the upper-intertidal zone of the same locality. As a result of the morphological observation, seven pairs of postcloacal papillae in adult males are confirmed. This matches with the character of H. longissimum, but the shape of the fifth postcloacal papillae differs between the present material and H. longissimum; the former possesses pedunculate papillae in the fifth pair whereas the latter has sessile papillae. Since the pedunculate papillae can be found in the original description and the syntype specimens of H. anguillae Yamaguti, 1935 that has been synonymised with H. longissimum, we thus here resurrect H. anguillae as an accepted species. For the life-cycle of the present nematode, littoral crabs, including the two infected species, are likely to be the source of infections for Japanese eels, acting as intermediate hosts.

Keywords: Nematoda; intermediate hosts; littoral crabs; morphology; parasitic nematode; taxonomy

Publication Types