Summary[edit] Description: English: Head of male Eurycea quadridigitata quadridigitata, Raleigh, North Carolina. The swollen snout, cirri, and enlarged premaxillary teeth are secondary sexual characters. Date: 1926. Source: Dunn, Emmett Reid (1926) The Salamanders of the Family Plethodontidae, Northampton: Smith College. Author: Eugene Fischer.