A re-examination of published lsrDNA sequence data of haploporid digeneans has shown that the genus Cadenatella Dollfus, 1946, hitherto considered a lepocreadioid, is correctly placed within the superfamily Haploporoidea Nicoll, 1914, although its relationships within the superfamily are not resolved. The morphological similarities and differences between Cadenatella and other haploporoids are discussed, and the subfamily Cadenatellinae Gibson & Bray, 1982 is considered the best repository for Cadenatella spp. at present.