FIGURES 11–18 in A new Epeorus (Caucasiron) (Ephemeroptera: Heptageniidae) species from Turkey based on molecular and morphological evidence

FIGURES 11–18. Epeorus (Caucasiron) turcicus sp. nov., mature larvae: 11, abdominal tergum VII, surface and posterior margin; 12, gill I; 13, gill III; 14, gill VII (flattened on the slide); 15a–c, gill plates VII (in natural position from ventral view), variability in shape; 16, gill plates VII, ventral view; 17, sternum IX, male; 18, sternum IX, female.