Stenorhynchus seticornis, or the yellow line arrow crab, is commonly found in shallow water among corals, and in deeper waters up to 180 m. It is part of the family Inachidae which are true crabs, meaning they have their antennae between their eyes. It is abundant in the tropical Atlantic in and around Florida, the Bahamas, and throughout the Caribbean down to parts of South America. These crabs are geographically limited from North Carolina to Argentina. It is commonly found amoung rocks, corals, calcareous algae, over sand, and sometimes in the spines of urchins. S. seticornis, is kept in marine aquaria. High demand and extreme prices have contributed to the endangerment of several groups of marine organisms. While fish and coral species are usually the main target, the popularity of decopod species in aquariums is rapidly increasing..