Illustrations of worms with the apparent vaginal arrangement agreeing with the diagnoses of three different genera: Pseudaxine, Pseudaxinoides, and Allogastrocotyle. (A and B) Pseudaxine trachuri, typical aspect, no vagina, MNHN HEL1290, HEL1291; (C and D) Pseudaxine trachuri, specimen with apparent “multiple vaginae”, MNHN HEL1283, HEL1292; (E and F), Allogastrocotyle bivaginalis, two real vaginae, MNHN HEL1293 (habitus redrawn from Bouguerche et al. [10]).