Ungla annulata Navás: Male abdomen, (a) segments A4-terminus, lateral (b, c) segments A7-terminus, lateral (d) callus cerci (e) tip of S9 with large, unmodified terminal setae (f) terminal tergites, dorsal [Note deep mesal invagination of T9+e.] (g) fused terminal sternites 8+9, ventral. c.c. callus cerci inv invaginated dorsal cleft in T9+ectoproct sp spiracle S8+9 fused eighth and ninth sternites T7 seventh tergite T9+e ninth tergite + ectoproct. Arrows indicate tip of S9 (Argentina; a, c–g: Salta, SEMC; b: Buenos Aires, USNM).