Recherche Archipelago mollusc, and over 450 types of sponge, sea grasses, and soft corals. A coral-like algae species, rhodoliths, form beds which support marine species of spiders, snails, and worms, also acting as a creche for scallops. Marine mammals associated with the islands include two species of seal, large groups of common dolphins ("Delphinus delphis"), and minke whales ("Balaenoptera acutorostrata"). Seagrasses found at the island include: "Amphibolis antarctica, Amphibolis griffithii, Halophila decipiens, Halophila ovalis, Posidonia angustifolia, Posidonia australis, Posidonia coriacea, Posidonia denhartogii, Posidonia kirkmani, Posidonia ostenfeldii, Posidonia sinuosa, Syringodium isoetifolium, and Thalassodendron pachyrhizum". The islands support populations of terrestrial flora and fauna,
Creature Catalogue of the player characters, originally printed in the Master Set, is reproduced in the introduction. Each creature is listed with appropriate "D&D" statistics and a short description of the creature, its abilities and tactics. A variety of authors and artists combined to the listings including Zeb Cook and Gary Gygax. AC9 "Creature Catalogue" was compiled by Graeme Morris, Phil Gallagher, and Jim Bambra, and was published by TSR in 1986. The "Creature Catalogue" is in the format of a 96-page perfect-bound book, which TSR had been adopting more frequently at the time. Cover art is by Keith Parkinson. An updated