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No abstract

JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.

No abstract

SUMMARY. Spirobutschliella clignyi, which occurs in the intestine of Pomatoceros triqueter, was found in numbers ranging from 1 to 98 in about 45% of the host specimens examined at Drøbak. Comparative incidence of infection in closely neighboring host specimens suggests that migration of normal sized ciliates is not the main route of infection. The distribution of dwarf ciliates indicates the possibility of their being involved in transmission. The general morphology and the absence of skeletal structures would seem to permit inclusion of the species in the family Anoplophryidae.