FIGURE 2. Uktena riparia n in Uktena riparia n. gen., n. sp. (Annelida, Clitellata, Lumbriculidae), a new spermatophore-producing oligochaete

FIGURE 2. Uktena riparia n. sp. Reproductive organs, A–C, E from Flat Creek (the type locality), D from tributary to Naked Creek. A–C. Mature, mated specimens; spermathecal copulatory organ is everted in (C); spermatophores in spermathecal bursae in (A, C); detail of spermathecal copulatory organ and glands in male bursa in (B). D–E. Immature worms with partially developed reproductive organs, spermathecal bursa and copulatory organ not developed; genital chaetae partially developed.