Trois Nadejdolepis Spasskii & Spasskaya, 1954 (Cestoda : Hymenolepididae) parasites de Charadrii (Aves) du Belize

Three Nadejdolepis from Belize, Central America, represent new geographical records (1) Nadejdolepis paranitidulans (Golikova, 1959) (rostellar hooks 40-44 mu m long) from Charadrius alexandrinus; (2) N. arenariae (Cabot, 196 9) n. comb. (rostellar hooks 89 mu m long) from Arenaria interpres; and (3) N. litoralis (Webster, 1947) (rostellar hooks 81-85 mu m long) from Calidr is fuscicollis (new host record). Additional descriptions, illustrations an d information pertaining to these species are included. In addition, N. sag uei Rysavy, 1967 is considered a synonym of N. litoralis (Webster, 1947). N . morenoi Rysavy, 1967 (rostral hooks 80 mu m long) needs to be redescribed to confirm its validity. Two species of Nadejdolepis are transferred to th e genus Microsomacanthus Lopez-Neyra, 1942 because their rostellar hooks ar e more diorchoid than nitiduloid, becoming M. cambrensis (Davies, 1939) n. comb. and M. alaskensis (Deblock & Rausch, 1967) n. comb.