FIGURES 13–17. Seguenziidae. 13. Halystina conoidea nov. spec. RGM 608.229 in On some Vetigastropoda (Mollusca, Gastropoda) from the Plio-Pleistocene of the Philippines with descriptions of three new species

FIGURES 13–17. Seguenziidae. 13. Halystina conoidea nov. spec. RGM 608.229 (holotype). Locality AndaDeVos. (a) rear view, (b) apertural view, (c) side view, (d) basal view, (e) apical view. 14. Halystina conoidea nov. spec. RGM 608.230 (paratype). Locality Anda6. (a) rear view, (b) apertural view, (c) side view, (d) basal view, (e) apical view. 15. Halystina conoidea nov. spec. RGM 608.231 (paratype). Locality AndaDeVos. SEM detail of protoconch. 16. Fluxinella membranacea Marshall, 1991. RGM 608.239. Locality Anda1. (a) rear view, (b) apertural view, (c) basal view, (d) apical view. 17. Fluxinella membranacea Marshall, 1991. RGM 608.240. Locality Anda1. (a) apical view, (b) SEM detail of surface sculpture.