Chlidichthys johnvoelckeriChlidichthys johnvoelckeri, the cerise dottyback, is a species of fish in the family Pseudochromidae.DescriptionChlidichthys johnvoelckeri is a small-sized fish which grows up to.Distribution and habitatChlidichthys johnvoelckeri is found in the Western part of the Indian Ocean, from Tanzania and Mozambique to the Comoros.EtymologyIn 1954 the fish was named by Smith in honor of John Voelcker, a prominent amateur ornithologist in Johannesburg, South Africa.