FIGURES 25–28 in Metaperipatus inae sp. nov. (Onychophora: Peripatopsidae) from Chile with a novel ovarian type and dermal insemination

FIGURES 25–28. Characteristics of ovary and associated structures in Metaperipatus blainvillei. Arrowheads indicate sperm cells. 25–26, 28, Azan-stained histological sections. 27, Nuclear staining of ovarian surface with DNA-selective dye (Hoechst, H33258); fluorescent micrograph. 25, Cross-section of ovary with a distinct sub-division into a sterile (st) and a germinal (ge) portion; dorsal is up. 26, Horizontal section of ovary with sperm cells associated with its surface. 27, Fluorescent micrograph showing nuclei of muscular cells (nu) from the ovarian surface interspersed with numerous filiform sperm heads (arrowheads). 28, Horizontal section of proximal portion of oviduct showing lumen of seminal receptacle (re) empty of sperm. Bl = basal lamina, ct = connective tissue, ge = germinal ovarian cell mass, he = hemocoel, lu = ovarian lumen, mu = musculature, nu = nuclei of muscular cells, oc = maturating oocytes, od = lumen of oviduct, re = lumen of seminal receptacle, st = sterile ovarian portion.