FIGURE 5. P in Two new, possibly threatened species of Pyrgulopsis (Gastropoda: Hydrobiidae) from southwestern California

FIGURE 5. P. castaicensis sp. nov., USNM 1097788. Scale = 0.25 mm. A–B. Penis. A. Dorsal surface. B. Ventral surface of distal portion, showing extent of terminal gland. C. Female glandular oviduct and associated structures (viewed from the left side). D. Bursa copulatrix and its duct. E. Seminal receptacle and its duct. Ag = albumen gland, Bu = bursa copulatrix, Cd = common duct of seminal receptacle and oviduct, Cg = capsule gland, Co = coiled oviduct, Dbu = bursal duct, Ga =genital aperture, Pd = penial duct, Pf = penial filament, Pl = penial lobe, Pw = posterior wall of pallial cavity, Tg = terminal gland, Vc = ventral channel, Vg = ventral gland.