Simpsonichthys constanciae

Simpsonichthys constanciae is a species of killifish from the family Rivulidae that is endemic to Brazil. It is restricted to temporary freshwater habitats in the São João River (Rio [de Janeiro)|São João] basin in Rio de [Janeiro (state)|Rio de Janeiro], while all other species in the genus are from Bahia. It is a small killifish that is up to in total length.

Etymology

The specific name of this fish honours Constance White, an American watercolour painter, who collected type of this fish with her husband, Lieutenant [colonel (United States)|Lieutenant colonel] Thomas D. White, and created colour sketches for George S. Myers.