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1. A new genus of trematode (family Allocre-adiidae) from the intestine of freshwater eels is described, and named Stegodexamene anguillae.2. The genus is related to Aephnidiogenes, Lepidapedon and Neophasis, but differs significantly from each of them.3. The life cycle followed is from the adult in Anguilla dieffenbachii to the redia in Potamopyrgus antipodum (fresh-water gastropod). The cercaria encysts in the eloetrid fish Gobiomorphus gobioides.4. Progenetic production of eggs and spermatozoa occurs in the metacercariae.5. Metacercarial excretory spherules are composed of calcium carbonate.

Summary Indigenous freshwater fishes of the Chatham Islands include Geotria australis, Anguilla australis schmidti, A. dieffenbachi, Retropinna retropinna, R. chathamensis, Galaxias argenteus, G. fasciatus, G. attenuatus, G. brevipinnis, and Gobiomorphus huttoni. Their habitats are described and attempts at introducing trout are discussed.

Twenty-nine stomachs of the large black shag (Phalacrocorax carbo (Linn.)) and 61 of the white-throated or little pied shag (P. brevirostris (Gould)) from the Rotorua-Taupo area were examined. Techniques used to determine the state of digestion and the identification of otoliths are discussed. Stomach content analyses showed that the food of lake-feeding shags in July consisted almost entirely of fish and freshwater crayfish. Bullies (Gobiomorphus sp.) were the most important food fish. Salmonid fish were found in one stomach (P. carbo).