Comparisons of Gymnophallid Digeneans from North Pacific and Baltic Clams, Macoma balthica (Bivalvia)

Three gymnophallid species in Macoma balthica from the northeastern Pacific Ocean are similar to 3 species in M. balthica from the Baltic Sea. Using light and scanning electron microscopy, we compared the anatomy of the larvae of 2 species of Lacunovermis and of Gymnophallus, and the adults of 2 spe...

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