MaleProcFIG 9: Late morphogenesis of the proctodeum.

A-D show transverse views moving posteriorly through the proctodeum of a late stage L4 male. Below each diagram is a corresponding TEM section. Clicking on the micrograph image will open a new window with a higher resolution, annotated version of the micrograph. Bε = B.al/rap. (dsr) Dorsal retractor muscles; (Rec gl.) rectal gland cells; (PCS) post-cloacal sensilla. (Adapted from Sulston et al., 1980 and based on the JSG EM series.)