A systematic revision of the genus Juga from fresh waters of the Pacific Northwest, USA (Cerithioidea, Semisulcospiridae) Author Strong, Ellen E. A8E5D1FF-9761-4158-B1E8-297FD733695B National Museum of Natural History, Smithsonian Institution, PO Box 37012, MRC 163, Washington, DC 20013 - 7012, USA. StrongE@si.edu Author Garner, Jeffrey T. F1E75231-0933-4490-B176-4DCF681EC71E 350 County Road 275, Alabama Department of Conservation and Natural Resources, Florence, Alabama 35633, USA. Jeffrey.Garner@dcnr.alabama.gov Author Johnson, Paul D. 38406737-A5C0-4462-B2EB-A5000B35EE4E 2200 Highway 175, Alabama Aquatic Biodiversity Center, Alabama Department of Conservation and Natural Resources, Marion, Alabama 36756, USA. Paul.Johnson@dcnr.alabama.gov Author Whelan, Nathan V. ECF031F9-BB78-41BD-BC9E-C789E1360202 Southeast Conservation Genetics Lab, Warm Springs Fish Technology Center, United States Fish and Wildlife Service, Auburn, Alabama 36849, USA. 4 School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama 36849, USA. nathan_whelan@fws.gov text European Journal of Taxonomy 2022 2022-12-07 848 1 97 http://dx.doi.org/10.5852/ejt.2022.848.1993 journal article 51748 10.5852/ejt.2022.848.1993 24a6e428-fdf4-4270-b465-33f0eb27e2d6 2118-9773 7427764 CD87E211-18D1-43DF-A4A4-70D8D111C969 Goniobasis rubiginosa I. Lea, 1862 This name was established by Lea (1862: 270 ; 1863a: 333–334 , pl. 38 fig. 193; 1863b: 155–156, pl. 38 fig. 193) based on two specimens sent to him by Wesley Newcomb, M.D., from “ Oregon ”. Tryon (1864 , 1865 , 1866 , 1873 ) considered the species to be valid, despite having seen specimens only from Lea’s collection, and was confident they would be plicate if the initial whorls were not eroded ( Tryon 1865: 244 ). Pilsbry (1899) also considered the species to be valid. Henderson (1929) identified two specimens as this species in a lot of eight from Ahtanum Creek, Union Gap, in Yakima County, Washington ; the other specimens in the lot were identified as Goniobasis draytonii . Henderson (1936b: 274) later admitted that one of the specimens was quite young, and in the other the carina was evidently the “result of disease or injury”. As mentioned above, the lot in question (UCM 15814) appears to be J. bulbosa as circumscribed herein and it does not resemble Lea’s (1863a , 1863b : pl. 38 fig. 193) original illustration of rubiginosa ( Fig. 27B ). Frest & Johannes (1995a: 246) provided the common name “Rusty Juga ”, and listed J. ( J. ) rubiginosa among species of uncertain status but considered it a potentially valid species and local endemic of conservation concern owing to agricultural impacts in the Yakima Valley. Later, Frest& Johannes (2010: 6) indicated it could be J. plicifera , but again expressed doubts as to its identity as a Juga . Other authors have considered the species to be conspecific with J. silicula ( Goodrich, 1942 ; Burch & Tottenham 1980 ; Burch 1982 , 1989 ). J.P.E. Morrison annotated the label of the lectotype , USNM 119297 ( Graf 2001 ; Fig. 27B ), that the locality was incorrect, and was “probably North or South Carolina ”. Given that no Juga species are known to possess a single, prominent spiral keel, we agree with the interpretation of Morrison that this species is a mislocalized eastern North American pleurocerid. The paralectotype is filed under Elimia symmetrica (Haldeman, 1841) in the USNM collections. Three paralectotypes in the Newcomb collections at the Paleontological Research Institute (PRI 21730) appear conspecific with the specimens in the USNM.