Goweroconcha caitlinae, Hyman & Köhler, 2024

Fig. 10 Shell images of Goweroconcha. a. G. wilsoni, AM C.532579. b. G. caitlinae, AM C.593715. c. G. plesa, AM C.64382. d, e. G. water- housiae. d. AM C.397613. e. AM C.389181. f. G. wenda, AM C.407659. g. G. verans, AM C.532546. Images by Frank Köhler. Scale bar 5 mm

Fig. 11 Scanning electron micrographs showing shell microsculpture of larger Gow- eroconcha species. First column shows a dorsal view of the shell; second column shows the protoconch; third column shows the microsculpture of the late teleoconch. a–c. G. wilsoni, AM C.389729. d–f. G. caitlinae, AM C.583414. g–i. G. water- housiae, AM C.397613. j–l. G. waterhousiae, AM C.420251. Images by Sue Lindsay. Scale bars 1 mm (a, d, g, j), 200 µm (b, e, h, k), 100 µm (c, i), 50 µm (f, l)

Fig.12 Live images of Goweroconcha wilsoni and G. caitlinae. a. G. wilsoni, Erskine Valley, AM C.532622. b–e. G. caitlinae, Mt Gower summit. b. Subadult, AM C.593714. c, d. AM C.574719. e. AM C.574721. f. G. wilsoni, Mt Gower summit, AM C.574735. Images by Adnan Moussalli (a), Craig Stehn (b–f). Images not to scale

Fig. 14 Radulae. a–c. Goweroconcha wilsoni, AM C.574703. d–f. G. caitlinae, AM C.590053. g–i. Pseudocharopa whiteleggei, AM C.532572. a, d, g: central teeth and initial lateral teeth; b, e, h: transi-

Fig. 15 Distribution map show- ing the range of Goweroconcha wilsoni, G. caitlinae and G. waterhousiae

Fig. 16 Genitalia of Goweroconcha caitlinae, Mt Gower summit, AM C.590053 (holotype). a. Reproductive system. b. Penis interior. c. Penis, undissected. Scale bars 1 mm. Abbreviations: alb, albumen