Pyrgophorus coronatus is a species of very small aquatic snail, an operculate gastropod mollusk or micromollusk in the family Hydrobiidae. Description Distribution and habitat In Nicaragua, it is found in abundance in the volcanic crater lakes Xiloa and Apoyo References External links http://www.lagunadeapoyo.blogspot.com/2011/03/snails.html Hydrobiidae Gastropods described in 1840