Neoapocreadium chabaudi sp. n. (Apocreadiidae) and Schikhobalotrema acuta (Linton, 1910) (Haplosplanchnidae) trematodes parasites of marine fishes in Brazil.

Neoapocreadium chabaudi sp. n. (Digenea, Apocreadiidae) is described from the intestine of a marine fish Stephanolepis hispidus from Brazil, and the genus Schikhobalotrema Skrjabin & Guschanskaja, 1955 represented by its type species S. acuta (Linton, 1910) Skrjabin and Guschanskaja, 1955, is for the first time reported from the intestine of Strongylura marina in Brazil. N. chabaudi sp. n. is more closely related to N. angustum (Sogandares-Bernal, 1959) from which differs mainly in the size of the eggs, by the presence of intercecal vitelline follicles in the region between the testes and acetabulum, and by the large genital atrium.