Myrmekioderma gyroderma

Myrmekioderma gyroderma is a sponge species belonging to the family Heteroxyidae, commonly found in the tropical waters of the Western Central Atlantic, specifically in the Gulf of Mexico and the Caribbean Sea. This species is notable for its thick, lobate masses with conical or lobed oscular elevations. The surface is heavily fouled, but features elongated, meandering grooves of clean tissue that serve as inhalant areas. Its coloration ranges from orange to orange-yellow, and it has a crumbly yet tough consistency. This sponge inhabits coralline algae reefs, algal nodules, and lower mesophotic reefs, thriving at depths between 20 and 72 meters. It is sessile, meaning it remains fixed in one place, and is a member of the class Demospongiae, which are hermaphroditic. The life cycle begins with a zygote developing into a free-swimming parenchymella larva before settling on a substrate to grow into a mature sponge. For divers, encountering Myrmekioderma gyroderma offers a glimpse into the complex ecosystems of tropical reefs. Although it does not have any known threats to humans and its conservation status has not been evaluated, it plays a role in the reef environment. Divers may note its distinct appearance and the ecological niche it occupies within its habitat.