👉 The term "Neptuniibacter" is a bacterium that belongs to the genus Neptuniibacter and class Prokaryotes. It is commonly found in marine environments, particularly in cold water areas such as the oceans. Its unique characteristics include its large size (up to 500 micrometers), which allows it to grow rapidly under harsh conditions, and its ability to survive extreme temperatures. Neptuniibacter is often used for research purposes due to its versatility