Genus Paraplanocera Laidlaw, 1903b

Diagnosis. Planoceridae with oval or circular body; robust and conspicuous nuchal tentacles; without marginal eyes, with cerebral and tentacular eyes; the pharynx is located in the central region of the body; gonopores separate; male reproductive system lacks a seminal vesicle; with a prostatic vesicle; spermiducal vesicle; cirrus sac with spines and conspicuous teeth and female reproductive system with bursa copulatrix; vagina with scalloped epithelium and Lang´s vesicle (modified from Faubel 1983).