Fig. 22 in A systematic revision of the genus Juga from fresh waters of the Pacific Northwest, USA (Cerithioidea, Semisulcospiridae)

Fig. 22. Type material of Juga nigrina (I. Lea, 1856). A. Melania nigrina I. Lea, 1856. Lectotype, USNM 118992. B. Melania shastaensis I. Lea, 1856. Lectotype, USNM 119283. C. Goniobasis circumlineata Tryon, 1865. Lectotype, ANSP 27573. D. Goniobasis chacei Henderson, 1935. Holotype, UCM 18058a. E. Goniobasis coquillensis Henderson, 1935. Holotype, UCM 21168a. F. Goniobasis orickensis Henderson, 1935. Holotype, UCM 17710a. G. Goniobasis yrekaensis Henderson, 1935. Holotype, UCM 17735a. H. Goniobasis yrekaensis obscura Henderson, 1935. Holotype, UCM 17724a. Scale bar = 1 cm.