For details of a modern classification of the group, consult the ‘CIH Keys to the Nematode Parasites of Vertebrates’3. In R. temporaria, R. esculenta and R. pipiens, however, relatively few species of nematodes commonly occur, so that a simple key based largely on location rather than morphology, generally suffices for identification. The key below deals with the commonest forms only; less common species are listed in Table 5.1 which also lists the classification. Comprehensive surveys of adult119, 177 and larval179 nematodes in R. temporaria and R. esculenta are available. The nematodes found in R. pipiens have been reviewed by Walton183–186.
Unable to display preview. Download preview PDF.