Socucius Ergalla is a Breton Agent residing in the seaside village of Seyda Neen. He is the head of the Census and Excise in Vvardenfell. He provided the Nerevarine's release papers which the Nerevarine had to give to Sellus Gravius before leaving the offices. One of his tax collectors, Processus Vitellius, went missing and was subsequently found dead by the Nerevarine. He also offers training in Acrobatics, Light Armor, and Sneak.
Investigate the death of a tax collector in Seyda Neen.
- Socucius is one of few NPCs with unique spoken dialogue in The Elder Scrolls III: Morrowind.
- Socucius is voiced by Wes Johnson, who voices the Imperials and Imperial Guards in The Elder Scrolls IV: Oblivion.
- Socucius has an ancestor named Syndelius Ergalla found in the Census and Excise Office in The Elder Scrolls Online: Morrowind expansion.
- "Socucius Ergalla" is an online nickname often used by Ken Rolston, the lead designer of Morrowind.