CLADOENDESIS OF EPHEMEROPTERA
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Figs 30–31. Procloeon monilistylus, styliger and penis of male imago, ventral view (penis dotted, its hidden part shown by interrupted lines). 30 – specimen from Ganukan, in projected condition (muscles not shown); 31 – specimen from Kyia, penis in re4tracted condition (penial muscles and right gonostylar muscle shown by interrupted lines).