Strong, Ellen E.; Garner, Jeffrey T.; Johnson, Paul D.; Whelan, Nathan V.
A systematic revision of the genus Juga from fresh waters of the Pacific Northwest, USA (Cerithioidea, Semisulcospiridae)
Fig. 10. Shell morphology of Juga bulbosa (A. Gould, 1847). A–D. Type material. G–S. Sequenced vouchers. A. Melania bulbosa A. Gould, 1847. Lectotype, MCZ 169067. B. Goniobasis bairdiana I. Lea, 1862. Lectotype, USNM 119069. C. Goniobasis draytonii I. Lea, 1862. Lectotype, USNM 118993. D. Goniobasis hemphilli maupinensis Henderson, 1935. Holotype, UCM 17754a. E. Melania bulbosa. Figured specimen, USNM 5563. F. Melania bulbosa. Original figure (Gould 1860: pl. 10 fig. 163–163a). G. USNM 1413315. H. USNM 1413307. I–J. Near topotypic (Goniobasis hemphilli maupinensis Henderson, 1935). I. USNM 1413300. J. USNM 1413301. K. USNM 1413426. L. USNM 1413186. M. USNM 1413230. N. USNM 1295091. O. USNM 1295055. P. USNM 1413165. Q. USNM 1413458. R. USNM 1413435. S. USNM 1295201. Scale bar = 1 cm.
Fig. 11. Radular morphology of Juga bulbosa (A. Gould, 1847) (USNM 1413186). A. View of the anterior radular ribbon. B. Detail of cutting edge of rachidian and lateral teeth. C. Detail of lateral teeth cusps. D. Detail of rachidian cusps. E. Inner and outer marginal teeth. F. Detail of inner and outer marginal teeth cusps. Scale bars: A = 200 µm; B–C = 100 µm; D–F = 50 µm.
Fig. 7. Distribution maps. A. Juga plicifera (I. Lea, 1838). B. Juga acutifilosa (Stearns, 1890). C. Juga bulbosa (A. Gould, 1847). Red stars, type localities; black dots, sequenced specimens; gray dots, unsequenced museum material. Abbreviations: CA = California; NV = Nevada; OR = Oregon; WA = Washington.
Fig. 5 (previous page). Shell morphology of Juga plicifera (I. Lea, 1838). Sequenced vouchers, arranged roughly from North to South. A. Near topotypic (Melania silicula A. Gould, 1847), USNM 1413235. B. USNM 1413244. C. USNM 1413471. D. USNM 1413219. E. USNM 1413170. F. USNM 1413171. G. USNM 1413222. H. USNM 1413183. I. USNM 1413177. J. USNM 1413204. K. USNM 1295003. L. USNM 1295178. M. USNM 1295022. N. USNM 1294958. O. Topotypic (Goniobasis hemphilli dallesensis Henderson, 1935), USNM 1294964. P. USNM 1295070. Q. USNM 1295196. R–S. Near topotypic (Melania plicifera I. Lea, 1838; Goniobasis plicifera var. oregonensis Tryon, 1865) R. USNM 1295147. S. USNM 1295150. T. USNM 1413397. U. USNM 1413028. V. USNM 1413386. W. USNM 1413370. X. USNM 1413409. Y. USNM 1413344. Z. USNM 1294972. A’. Near topotypic (Goniobasis plicifera var. bulimoides Tryon, 1865), USNM 1295172. B’. USNM 1413394. Scale bar = 1 cm.