Cristitectus is a genus of parasitic nematodes, belonging to the family Cystidicolidae. Species of Cristitectus are parasitic as adults in the gastrointestinal tract of fish. [1] According to the World Register of Marine Species, the genus currently (2019) includes a single species, Cristitectus congeri,[2] which is a parasite of the European conger.
The genus Cristitectus is characterised by short cuticular ridges located on the anterior end.[1] Cristitectus congeri was described from a single female, 24 mm in length.[1]
The etymology is not detailed in the original publication[1] but it can be inferred that the root "crist" in the name refers to the characteristic anterior cristae or ridges.
Cristitectus congeri Petter, 1970 is a parasite of the stomach of the European conger Conger conger. The type-locality is the Atlantic Ocean off Nantes in France.[1]