Squashed lice

Stephen thinks of his mother's "shapely fingernails reddened by the blood of squashed lice from the children's shirts." Head lice were a widespread problem for Dublin’s poor. The Joyce family’s periodic moves northward, from the comfortable suburbs south of Dublin into poorer and poorer neighborhoods, landed them in the midst of this urban plague.

John Hunt 2011

Woman removing lice from head of young man. Source: odkrywcy.pl.