60 (58) Outer body wall muscle layers consist of outer longitudinal and inner circular layers (Fig. 128); frontal gland 

 very small or lacking (Figs. 127, 129) Genus Paraphanosloma 





.-longitudinal muscle 



o " " " " ° '^circular muscle 



Figure 128. — Longitudinal section of body wall. 



Figure 129. — Paraphanosloma gracilis. 



60 (55) Outer body wall muscle layers with outer circular and inner longitudinal fibers (Fig. 130); frontal gland well 



developed 61 



mMMmmkMmL 



;o j^, ^° J ° r ^^circular muscle 

 ooo_aooo°oa ^ _|onqitudinal muscle 



Figure 130. — Longitudinal section of body wall. 



61 (60) Seminal bursa without a spermatic duct (Fig. 131) . 



. Genus Pseudactinoposthia. 



Figure \i\.— Pseudactinoposthia saltans. 



40 



