EN
Bomolochus globiceps (Vervoort et Ramírez, 1968) (Copepoda, Bomolochidae), a parasite of the atheriniid fish Odonthestes smitti from the coast of Mar del Plata, Argentina, is redescribed and illustrated; details of the armature of appendages and differences from the original description are given, and a new host record, O. argentinensis, is reported for this species.