Figure 7

Adult musculature associated with mouth and genital organs. CLSM micrographs. Anterior is left in all aspects. A. The relative position of the mouth opening (asterisk) and female (fg) and male gonopore (mg) is visible. B-F. The male gonopore is encircled by circular pore muscles (cgm) and the posterior part of the animal shows sagittocysts (sg). C. The musculature associated with the penis is framed. D. Sagittocysts anterior to the male gonopore are indicated. E. The paired false seminal vesicles (fsv) terminate at the male gonopore. F. The female gonopore and the sclerotized bursal nozzle (bn) are visible. The bursal nozzle leads from the seminal bursa to the female genital opening. Sagittocysts in the lateral sides of the body are marked with arrowheads. G. The muscle mantle of the sagittocysts is located below the bodywall muscle grid. H. Detail of the boxed area in (G), showing the sagittocysts in higher magnification. Scale bars: 200 μm (A, E-F), 50 μm (B, C, H), 100 μm (D, G).