FIGURE 39 in Revision of the dwarf cannibal snails (Nata s. l.) of southern Africa— Nata s. s. and Natella (Mollusca: Gastropoda: Rhytididae), with description of three new species

FIGURE 39. Natella viridescens (Melvill & Ponsonby, 1891), genitalia (NMSA V3177). A, middle and lower portion of genital tract. B, internal structure of penis. Abbreviations: ag, albumen gland; bc, bursa copulatrix; bd, bursa copulatrix duct; fod, free oviduct; ga, genital atrium; m, muscle fibres; p, penis; pf, folds inside penis base; pr, penial retractor muscle; pv, penial verge; sod, spermoviduct; v, vagina; vd, vas deferens.Published as part of David G. Herbert & Adnan Mousalli, 2016, Revision of the dwarf cannibal snails (Nata s. l.) of southern Africa— Nata s. s. and Natella (Mollusca: Gastropoda: Rhytididae), with description of three new species, pp. 1-67 in Zootaxa 4094 (1) on page 52, DOI: 10.11646/zootaxa.4094.1.1, http://zenodo.org/record/26654