On the Structure and Relationships of the Nematode Capillaria [Hepaticola] hepatica (Bancroft)

Abstract

1. Some account of the occurrence of “Hepaticola” hepatica in various hosts is given, and it is recorded from the wood-mouse (Apodemus sylvaticus) in England.2. Some additions and corrections are made to the morphological des scription of “H.” hepatica, which is shown to possess characters (presence of “bacillary bands,” presence of a spicule in the male) the supposed absence of which had led to the erection of the genus Hepaticola as distinct from Capillaria.3. The status of the genera Hepaticola, Eucoleus, Thominx, Calodium and Liniscus is discussed, and the conclusion is reached that these should all be suppressed as synonyms of Capillaria, which is redefined.