List of corals of the Houtman Abrolhos
The marine waters of the Houtman Abrolhos, an island chain off the coast of Western Australia, have been recorded as containing 194 species of coral in 50 genera. This is a surprisingly high coral diversity, considering the high latitude of the reef, and the relatively low diversity of other biota. This is a list of corals of the Houtman Abrolhos:
Abbottella
A third complex consists of species with rather large, openly coiled to nearly planispiral shells with pronounced prickly sculpture and widely expanded outer lips; the shells are often strongly patterned. The group contains "Abbottella haitensis", and "Abbottella moreletianus". Bartsch (1946) broke "Abbottella moreletianus" into five subspecies. Zoogeographically, this group presents a problem: the two species occur at opposite ends of the island (Thomazeau, Haiti and the Samaná Peninsula and environs). This group will be addressed in a future study.