Golden Fireworm Crawling Across Volcanic Seabed in Bali

A high-magnification macro underwater photograph captures a detailed, low-angle view of a golden fireworm (Chloeia species, such as Chloeia flava or Chloeia fusca) crawling over a dark volcanic sand and silt substrate in Bali. The free-swimming amphinomid polychaete displays an elongated, segmented body accented with vibrant golden-yellow, amber, and reddish-brown dorsal markings. Lined along both flanks are prominent, fan-like parapodia bristling with dense clusters of sharp, hollow, venomous white chaetae (setae). Slender sensory cirri and branchial gills extend along the dorsal margins, adding texture to its venomous defensive armor. The subject moves across dark basalt sediment scattered with small mineral flecks and organic debris. An ultra-shallow depth of field pins sharp focus on the anterior segment, delicate sensory palps, and crystalline white bristles, while the posterior body and dark background fade softly into smooth bokeh. Ideal for amphinomid polychaete taxonomy, venomous marine organism guides, benthic invertebrate textbooks, and professional nature stock media.