A new and presumably extinct species of Ptychochromoides (Teleostei: Perciformes: Cichlidae) from central Madagascar. Author John S. Sparks text Zootaxa 2004 524 1 15 http://www.zoobank.org/urn:lsid:zoobank.org:pub:1621B03B-EBD7-49FA-8250-08A31072A2CD journal article z00524p001 Ptychochromoides betsileanus : BMNH 1882.2.25:69, lectotype; BMNH 1882.2.25:70, 1 paralectotype; AMNH 217753, 1 ex.; AMNH 217763, 1 ex.; BMNH 1909.7.27:53, 1 ex.; MNHN 1960-255, 1 ex.; MNHN 1965-314, 1 ex.; UMMZ 238114, 3 ex.; UMMZ 238115, 5 ex. S.