Fig. 4 in A systematic revision of the genus Juga from fresh waters of the Pacific Northwest, USA (Cerithioidea, Semisulcospiridae)

Fig. 4. Type material of Juga plicifera (I. Lea, 1838). A. Melania plicifera I. Lea, 1838. Lectotype, USNM 119244. B. Melania silicula A. Gould, 1847. Lectotype, USNM 12137. C. Melania rudens Reeve, 1860. Lectotype, NHMUK 20110170/1. D. Goniobasis plicifera bulimoides Tryon, 1865. Lectotype, ANSP 27542. E. Goniobasis plicifera var. oregonensis Tryon, 1865. Lectotype, ANSP 27550. F. Goniobasis hemphilli Henderson, 1935. Holotype, UCM 21167a. G. Goniobasis hemphilli dallesensis Henderson, 1935. Holotype, UCM 16016a. Scale bar = 1 cm.