Folia Parasitologica, vol. 61 (2014), issue 3

Folia Parasitologica 61[3] 267-271 (2014) | 10.14411/fp.2014.029

Huffmanela hamo sp. n. (Nematoda: Trichosomoididae: Huffmanelinae) from the dagger-tooth pike conger Muraenesox cinereus off Japan

Jean-Lou Justine1, Takashi Iwaki2
1 ISYEB, Institut de Systématique, Évolution, Biodiversité (UMR 7205 CNRS, EPHE, MNHN, UPMC), Muséum National d'Histoire Naturelle, Paris, France;
2 Meguro Parasitological Museum,Tokyo, Japan

Huffmanela hamo sp. n. is described from eggs only, which were found in black spots in the somatic musculature of a dagger-tooth pike conger, Muraenesox cinereus (Forsskål), caught off Japan. The eggs are 66-77 µm (mean 72 µm) in length and 33-38 µm (mean 35 µm) in width. The surface of the eggs is smooth and bears neither envelope nor filaments. The species is distinguished from other members of the genus by the dimensions of its eggs and the characteristics of their surface. This is the first species of Huffmanela Moravec, 1987 to be described from an anguilliform fish, and the twentieth nominal species in the genus. Similar black spots with eggs were reported four times in ten years from this fish caught off Japan; although eggs could not be examined, it is likely that the same species was involved in all cases.

Keywords: new species, egg morphology, Pacific Ocean

Received: November 26, 2013; Accepted: December 23, 2013; Prepublished online: February 28, 2014; Published: June 19, 2014


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