1. IMSWE (Inshore Marine Shallow-Water Ecosystem) Contribution No. 36.
2. Pseudopterogorgia rigida was collected at −10m near Carrie Bow Cay. Belize. 1975. We are grateful for the taxonomic expertise of Ms. Katie Muzic and Dr. F.M. Bayer, Smithsonian Institution, with whom voucher specimens have been deposited.