PLATE 2, FIGURES 7–14. G. subtiloides, SEM. Figs 7–11, external views. Fig. 7 in New Gomphoneis Cleve (Bacillariophyceae: Gomphonemataceae) species from Xinjiang Province, China

PLATE 2, FIGURES 7–14. G. subtiloides, SEM. Figs 7–11, external views. Fig. 7. Entire valve showing shape of the valve and shape of the distinct central area. Fig. 8. View of central area with branching striae. Fig. 9. Headpole, with striae composed of two rows of rounded areolae. Fig. 10. Central area showing dilated external proximal raphe ends and striae terminating in a single row of areolae. Fig. 11. Distinct apical pore field dominates the footpole. Porelli are in distinct rows, and appear similar in shape to areolae. Figs 12– 14, internal views. Fig. 12. Headpole with distinct helictoglossa and pseudoseptum. Fig. 13. Central area with proximal raphe ends recurved in the same direction on the edge of the central nodule and striae terminating as single rows of areolae. Fig. 14. Footpole, with prominent helictoglossa and wide pseudoseptum.