Age at sexual maturity and its relationship to longevity in the male annual cyprinodont fish, Nothobranchius guentheri Apr 1, 1972 | Publications Markofsky J, Perlmutter A Exp. Gerontol. 1972 Apr;7(2):131-5 PMID: 5042930 http://www.ncbi.nlm.nih.gov/pubmed/5042930