What is "cloacina"

In Roman mythology, Cloacina ( Latin, cloaca: "sewer" or "drain") was the goddess who presided over the Cloaca Maxima ("Great Drain"), the main trunk of the system of sewers in Rome. She was originally derived from Etruscan mythology. The Cloaca Maxima were said to be begun by one of Rome's Etruscan kings, Tarquinius Priscus, and finished by another, Tarquinius Superbus.

Titus Tatius, who reigned with Romulus, erected a statue to Cloacina as the spirit of the "Great Drain". As well as controlling sewers, she was also a protector of sexual intercourse in marriage. Despite her Etruscan origins, she later became identified with Venus.