The dwarf seahorse is the smallest seahorse living in US waters, measuring in at just an inch tall. This species resides among seagrass beds in the Gulf of Mexico as well as some portions of the Caribbean Sea.
Unfortunately, these animals have been suffering from a continued population decline as documented by the Center for Biological Diversity. The reduced numbers being found within Florida’s estuaries and bays have given rise to a growing movement to list this species as endangered, an unfortunate result of habitat loss and pollution, especially within the Gulf of Mexico.
http://forcechange.com/25595/protect-severely-threatened-dwarf-seahorse-habitat/