A systematic revision of the genus Archocentrus (Perciformes: Cichlidae), with the description of two new genera and six new species. Author Juan J. Schmitter-Soto text Zootaxa 2007 1603 1 78 http://www.zoobank.org/urn:lsid:zoobank.org:pub:AFFCB590-1FC7-4CD0-950C-D1D1A6E59F6C journal article z01603p001 R. gemmata : ECOCH 4054 ( holotype , dig.), ECOCH 1468 (1 paratype , C&S, dig.), ECOCH 3145 (1 paratype , dig.), Mexico , Quintana Roo , nameless cenote 12 km N of Leona Vicario ; UANL 15046 (4 paratypes ), Mexico , Quintana Roo , Laguna Leona Vicario .