FIGURE 2 in Convolutidae (Acoela) from Belize

FIGURE 2. Amphiscolops blumi sp. nov.; photomicrographs of sagittal histological sections stained with toluidine blue. A. Section through length of body. Arrowhead points to female gonopore. B. Section through female and male copulatory organs. C. Section through male antrum. Arrow points to muscle, arrowhead to cilia. D. Section through ejaculatory duct. Arrowhead points to cilia.