The slave ship Conde dos Arcos arrived with enslaved Africans in Brazil. About 425 people had been taken aboard and approximately 419 arrived.

Vessel: Conde dos Arcos; flag: Portugal / Brazil; rig: Bergantim; estimated standardized tonnage: 200. People recorded in connection with the voyage: Investor: Porto, João Alves da Silva; Investor: Correa, Manoel dos Passos; Captain: Bastos, Manoel Domingos. The voyage began at Lisbon on 27 October 1825. Principal recorded place where captives were acquired: Ambriz (West Central Africa and St Helena). Principal recorded disembarkation place: Rio de Janeiro. Recorded duration of the captives' Atlantic crossing: 33 days. Estimated mortality during the crossing: 1.0%. Recorded outcome: Voyage completed as intended.