Abstract
Daitreosoma parva n.sp. (Monogenea: Dactylogyridae) was discovered in gill smears from four of five glassies, Ambassis miops Günther (Centropomidae), from fresh-water pools on Guadalcanal, British Solomon Islands Protectorate. Only two species of Daitreosoma were known previously, both of them parasitizing Therapon spp. (Theraponidae) from the Thomson River, Queensland. D. parva n. sp., measuring from 133 to 145 μ by from 38 to 41 μ (av., 139 by 39 μ), is only about one-quarter the length and width of its congeners. It also differs from these in details of the haptorial structures and genitalia, notably in that the testis is ventral to the ovary. An encysted metacercaria of Stephanostomum sp. (Digenea: Acanthocolpidae) is also recorded from the gills of A. miops. One of 12 mullets, Mugil oligolepis Bleeker (Mugilidae), from a tidal stream on the island of Aneityum, New Hebrides, had an example of an undetermined species of Microcotyle (Monogenea: Microcotylidae) on its gills.
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