Comparative studies of ‘bile salts’. 12. Application to a problem of rodent classification: bile salts of the cutting-grass, Thryonomys swinderianus

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Abstract
The bile salts of the West African rodent Thyronomys swinderianus (the cutting-grass) were found to consist chiefly of chenodeoxycholic acid conjugated with taurine. Smaller amounts of (conjugated) deoxycholic and of ursodeoxycholic acids were detected. No glycine conjugates were found. Comparison of bile salts with those of the morphologically similar South American coypu (Myocastor coypus) previously examined (Haslewood, 1954) supports the view of Wood (1955) that the two rodent species are not closely related in an evolutionary sense.