FIGURE 1. R in Contributions towards a review of the genus Rhynchelmis Hoffmeister (Clitellata: Lumbriculidae)

FIGURE 1. R. tetratheca. (A) lateral and ventral views of whole worms, showing segmentation and positions of the male and spermathecal pores. (B) sagittal view of spermatheca. (C) transverse view of IX, reconstructed from sections: curled longitudinal muscles, oblique muscles, spermathecal ampullae joining the intestine via short ducts and accessory organ. (D) transverse view of X, reconstructed from sections: male pores and ectal ends of atria. (E) sagittal view of genital segments, from a dissected worm. Scale bars: A = 2 mm; B = 100 μm; C–E = 500 μm.