CLADOENDESIS OF EPHEMEROPTERA
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Figs 104–107. Crassabwa ludmilae, male genitals. 104 – subimaginal genitals developing under larval cuticle; 105 – exuviae of subimaginal genitals; 106 – genitals of male imago, ventral view (unistyligers and gonostyli unnaturally brought together because of wrong fixation; internal sclerites and muscles shown by interrupted lines, right gonostylar muscle not shown; large arrow shows median projection of dorsal wall of unistyliger); 107 – penis enlarged, ventral view (gonoducts shown by dotted lines). Abbreviations: gs1, gs2, gs3 – segments of gonostylus; gv – gonovectis; mIX-X – places of attachment of muscles running to common base of paraprocts; pb – paired internal projection of penial bridge; usg – unistyliger.