Houtman Abrolhos
The Houtman Abrolhos is unusual in having a luxuriant and diverse living coral reef at such a high latitude. 194 species in 50 genera have been recorded there, all but two of which are tropical. This is a surprisingly high coral diversity, considering the high latitude of the reef, and the relatively low diversity of other biota. For a full list, see list of corals of the Houtman Abrolhos.
List of islands in the Houtman Abrolhos
This is a list of islands in the Houtman Abrolhos, an island chain off the west coast of Australia. It is complete with respect to the 1996 Gazetteer of Australia. It is widely reported that the Houtman Abrolhos contains 122 islands, but only 93 islands had gazetted names in 1996. In the gazetteer of 2011 Hartley Island appears no more, but Barge Rock, Second Sister and Shag Rock appear, which raises the number of gazetted names to 96 (30 in the Wallabi Group, 38 in the Pelsaert Group and 28 in the Easter Group).