Are all species of Pseudorhabdosynochus strictly host specific? - A molecular study

► Species of the monogenean genus Pseudorhabdosynochus are strictly specific. ► Pseudorhabdosynochus cyanopodus appeared to be an exception. ► Morphology and molecules (COI gene) showed that P. cyanopodus is found in two hosts. ► It is hypothesized that low specificity is an adaptation to deep-sea hosts.