Classically, polychaete worms predominate in the macrobenthos, followed by crustaceans, molluscs and echi-noderms (Gray and Elliott 2009). The benthic infauna, be they deposit-feeders from sediments or suspension-feed-ers from the water column, or those which are capable of both, provide an important link to higher trophic levels like the demersal ichthyofauna. However, studies of benthic macro-infauna of tropical marine sediments are far fewer than their temperate counterparts (Alongi 1990) and, as with the paucity of information on sediment characteristics of the region, there are very few infaunal studies on shelf sediment habitats in the WIO. Consequently, literature on these fauna from the region are limited (Mackie and others, 2005).