Amphilina japonica
Klaus RohdeIntroduction
The species is distributed in the Amur region, Japan and North America. Its hosts are Acipenser schrencki and Huso dauricus in the Amur region, Acipenser medirostris (= A. mikadoi) in Japan,and Acipenser medirostris in North America. It resembles A. foliacea closely except for slight differences in the position of gonoducts and testes follicles. Future studies may well show that the two "species" should rather be considered as different subspecies of A. foliacea. The North-American form has been described as a separate species, A. bipunctata, but it is more or less identical with A. japonica. Specimens of A. japonica reach a length of 73 mm and a width of 25 mm.
Characteristics
Figure 1. Adult Amphilina japonica. Note vaginal and male pores close together at posterior end, and restriction of testes to lateral fields. According to Dubinina (1962), redrawn from Dubinina (1982).
Figure 2. Posterior end of Amphilina japonica. Redrawn from Dubinina (1982).
Figure 3. Larval hooks of Amphilina japonica. Note four types, two serrate, and three halberd-shaped of different sizes (only one of each pair drawn). From Dubinina (1982).
References
Dubinina, M.N. (1982). Parasitic worms of the class Amphilinida (Platyhelminthes). "Nauka", Leningrad (in Russian). (Older references therein).
About This Page
Klaus Rohde
University of New England, Armidale, New South Wales, Australia
Correspondence regarding this page should be directed to Klaus Rohde at
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- First online 06 December 2000
Citing this page:
Rohde, Klaus. 2000. Amphilina japonica. Version 06 December 2000. http://tolweb.org/Amphilina_japonica/20408/2000.12.06 in The Tree of Life Web Project, http://tolweb.org/
