Snake Mountain Hermitage: Images from Kabuki

Kabuki version of Snake Mountain scene. Iemon prays for release from the ghost of Oiwa. The lantern above burns into the shape of her disfigured face.

 

The ghost of Oiwa appears from the lantern, cradling her dead "baby." What is being used here for the baby?

Woodblock print version of the same scene

Baby image 1, image 2