Wilhelmus Petrus Nagelkerken

• Biology of the graysby, Epinephelus cruentatus, of the coral reef of Curaçao
• Ceramics of Orange Bay, St. Eustatius, Netherlands Antilles
• Coral reef fishes of Aruba, Bonaire, and Curaçao (Netherlands Antilles) =
• Distribution and ecology of the groupers (Serranidae) and snappers (Lutjanidae) of the Netherlands Antilles
• Preliminary report on the determination of the location of the historical anchorage at Orange Bay, St. Eustatius, Netherlands Antilles