Phascolion (Isomya)
General description:
(From Cutler, 1994)
Phascolion tuberculosum Théel, 1875
Diagnostic description:
(From Cutler, 1994)
Retractor column divided for most of its length.
Esophagus detaches from retractor column posterior to the first separation of the retractor muscles.
Dorsal and ventral retractor muscles diameters are equal or nearly so.