Oaxaca cave sleeper
Caecieleotris morrisi , also known as the Oaxaca cave sleeper is a species of troglobitic fish in the family Eleotridae found in a single cave system beneath Presa Miguel Alemán reservoir , northern State of Oaxaca in Mexico . 
<triplet> Presa Miguel Alemán <subj> Mexico <obj> country <triplet> State of Oaxaca <subj> Mexico <obj> located in the administrative territorial entity <triplet> Mexico <subj> State of Oaxaca <obj> contains administrative territorial entity