The Emperor Angelfish

This regular postage issue features an exquisite line engraving by Jacques Derrey profiling a mature Emperor Angelfish (Pomalonotus imperator, noted taxonomically as Pomacanthus imperator), meticulously documenting its bold, horizontal body striping and striking ocular mask. Bearing the regional locale inscription "GAHOI", this definitive release archives the deep-water fringing coral reefs that surround the volcanic islands of the archipelago. Historically, this issue represents the post-war territorial administration's efforts to systematically classify the marine riches of the Mozambique Channel, highlighting an iconic apex grazing species whose presence indicates a healthy, undisturbed benthic ecosystem.