Cyl was a Trill symbiont whose hosts included Neema and Taulin

In 2280 Neema Cyl learned from her mother, Audrid Dax, of the discovery of the Parasites and the threat they posed to Trill. All successive hosts of the Cyl symbiont dedicated themselves to research on these creatures. A later host Taulin was a Watcher of the parasites. (DS9 short story: "Sins of the Mother", novel: Unity)

Known HostsEdit

• Deilas - a botanist in the mid 22nd century
• Neema - the first Watcher, in the late 23rd century
• Reck - a professor in forensic science
• Elista - a xenobiologist
• Taulin - a military advisor in the late 24th century