Paraquimperia Baylis, 1934

Generic diagnosis (after Moravec 2013). Quimperiidae . Thread-like worms, anterior end dorsally bent. Cuticle with fine transverse striations. Broad lateral alae and deirids present. Head with three rudimentary lips, and small buccal cavity with three teeth. Muscular oesophagus comprises distinct pharyngeal region, narrow anterior portion and wider posterior portion (Fig. 101 A). Tail of both sexes conical, sharply pointed, that of males bent ventrad. Precloacal region of males with distinct oblique muscle bands; caudal alae absent. Four pairs of pre-cloacal and seven pairs of post-cloacal papillae, plus one unpaired pre-cloacal papilla. Vulva in posterior third of body. Uteri amphidelphic. Eggs uncleaved, or cleaved into four blastomeres at most.

One species, P. tenerrima, is known from one fish species in Canada.