A new trematode Orthosplanchnus pygmaeus sp. n., obtained from the grey whale (Eschrichtius gibbosus) of the Chukotsk Sea, is described. The new species differs from the known ones of the genus Orthosplanchnus in the smaller ...

New species of Nematoda — Parafilaroides krascheninnikovi sp. n. is described from the lungs of Pusa hispida krascheninnikovi Naumove t Smirno v inhabiting the Bering and Chukotsk seas. The new species differs from all ...