CLADOENDESIS OF EPHEMEROPTERA
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Fig. 228–231. Centroptella (Centroptella) illiesi, left and right mandibles. 228–229 – southern (temperate) specimen from Victoria, Eurobin Creek; 230–231 – northern (tropical) specimen from Queensland, near Cairns. Abbreviations: in1–in4 – denticles of incisor; kd1–kd3 – denticles of kinetodontium; o-v.d – outer-ventral denticle on incisor.