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Intelligent Lifeform Index

Four Letter Code TLNI
Federation Status Member
Planet of Origin T'Lani
Encountered DS9: "Armageddon Game"
T/E Rating T0/E0
Current Tech Level G - Faster Than Light
List of Named T'Lanis

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"The future holds the promise of new beginnings and better memories."
a T'Lani saying.
The T'Lani are a species whose need to preserve the hard won peace between them and the Kellerun meant they were willing to rewrite history and eliminate those who knew the truth and had helped them to destroy the last vials of a sinister viral weapon.

Home System

  • Quadrant: Alpha Quadrant
  • Location: one hour away at warp 7 from DS9 in the Bajor Sector (coordinates A24-0003-1301)
  • Proper Name: T'Lani system
  • Star: It orbits a class G (Yellow) star
  • Distance from Star: its orbit is approximately 81 million km
  • Companions: It is the 1st of 9 planets, however the 3rd use to have a very large colony which was destroyed and the 4th has since been terraformed and colonized.
  • Moons: it has 3 moons.

Home World

  • Proper Name: T'Lani Prime
  • Diameter: 23,081 km (14,342 miles)
  • Gravity: 1.05 standard gravity with a density of 3.2
  • Axial Tilt: 12.8% Degrees with minor seasonal variations
  • Orbital Period: 315 Earth days
  • Rotational Period: 28 hours
  • Classification: M
  • Surface Water: 49%
  • Atmosphere: 1.07 is a standard pressure with 75% nitrogen, 23% oxygen, 2% trace gases
  • Climate: Fairly temperate with small tropical and arctic zones but also some extreme weather near large bodies of water
  • Terrain: It has numerous forests, jungles and rain forests as well as hills, swamps and some mountains
  • Population: They have 9 billion on T’Lani Prime and another 2 billion in colonists scattered across the sector.


They were at war with the Kellerun for centuries until they were finally able to achieve a lasting peace in 2370. The war had been marked by the use of a deadly chemical, known as the Harvester weapon.

In 2370, a T'Lani cruiser was located in orbit of the third planet, and Dr. Bashir and Chief O'Brien were sent there to help the T'Lani and Kelleruns rid themselves of Harvesters, a biological weapon. After completing their task, there was to be a celebration held on T'Lani Prime, thus delaying their expected departure by a day.

Not long after, Ambassador E'Tyshra told Benjamin Sisko that there would be a memorial service held for Bashir and O'Brien on the planet, after their supposed deaths. This was because both sides were determined to keep the hard fought peace they now enjoyed and decided to remove all records of the virus. This meant killing the scientists who designed it and the two Starfleet officers, Chief Miles O'Brien and Doctor Julian Bashir, from Deep Space 9, who had been sent to help to destroy the last vials of the virus.

T'Lani III is the third planet of the T'Lani system, formerly inhabited by the T'Lani race. The entire population of the planet was wiped out by Harvesters, deployed during the war against the Kellerun. Miles O'Brien and Julian Bashir hid in an abandoned bunker on T'Lani III after the T'Lani and Kellerun authorities attempted to eliminate them and their knowledge of the Harvesters. Fortunately, the two were rescued by the crew of Deep Space 9 before the T'Lani and the Kellerun could kill them.


Before the start of their centuries long war with the Kellerun they had a fairly democratic government according to the historical records. However as the war dragged on and on certain changes were made. At first these changes were small but eventually they resulted in a complete alteration in their government style.

Now it is more like a military regime with advancement and promotions. Elected officials now serve for life and slowly work they way up. When a position at the bottom becomes available an election is called to fill the spot. When a position becomes available anywhere else in the government they promote from below to fill that position.


T'Lani females are considered to be generally attractive to most other humanoid species while the men are considered to be average in appearance. The most distinctive feature of the T'Lani is their brown, curly hair, which is worn in the same elaborate style by the men and women. The hair at the top of their heads is straight and pulled back neatly. On the sides and the back of the head, it is tremendously curly, and is swept up in a wing-like fashion that must require careful maintenance.


As with most intelligent humanoid species they have a number of unique characteristics that make their physical forms different for other species. However they have sufficient similarities that it is not to difficult for other species to provide medical aid to them if needed.


The T'Lani's mindset is to protect their species from harm and they will got to any lengths to ensure that result. Having been at war for centuries with the Kelleruns, both species worked together to eradicate the MA:Harvester virus.


At one time they were a fairly spiritual people, but after centuries of constant war and savage losses like the entire population of T’Lani III, less than half of the population still take time to pray or enter a temple.


They have a rather unusual style of myths that are more like rhyming poems than stories. However the basic premise of most of the stories is usually that of man versus nature.


Their society underwent radical changes during the centuries long war with the Kelleruns. Where they use to be a fairly relaxed, outgoing people they are now a more reserved, careful and standoffish of others. Before most of them lived average lives. Now every single adult serves a minimum of 3 years in the military, however with the end of the war this has been changed to 1 year and there is some discussion of them removing this requirement in the near future.


The T'Lani culture use to include lots of music, dancing, various forms of artistic expression and a open acceptance of new and different means of expression. During the long years of the war this changed. Fewer and fewer new and original works were produced and creative expression slowly became stagnant. Even though the war has been over for a while it is still too soon to tell just how much of an impact this will have on creative artistic expression.


The one custom that has not been altered or affected in any way by the long war was the Ceremony of Transition. This event is celebrated by the family and friends as the most significant and important in any child’s life as it marks their transition into adulthood. It is during this ceremony that they have their hair sculpted into the traditional T’Lani fashion for the first time.


They are well behind the average level of technology for most Federation member worlds. Since the end of the war they have been able to better develop their scientific and technology infrastructure and are now slowly making better progress than they have in a long time.


They have been able to re-establish numerous trade deals with many different species since the end of their centuries long war with the Kellerun. As a result they now have a thriving economy and are very competitive when negotiating new trade deals.

Even now after so many years have passed since the end of the war they still use DS9 as a meeting location in which to transfer cargos and meet with merchants and other possible trading partners. As a result there is usually some cargo being held on the station either for them or from them.


The A'norum-class entered service during the long T'Lani-Kellerun War and wasn't a technically advanced vessel, as the main purpose of the vessels were to reach the Kellerun homeworld and unleash the deadly biological weapons known as "Harvesters". Despite not being particularly advanced vessels, they were more than a match for a Federation Danube-class runabout.

One cruiser of this type was used to store and to perform experiments on destroying the Harvester weapon in 2370. With the end of the war these vessels were overhauled and rebuilt to act as true warships instead of munitions tenders. During this process about half of them were decommissioned and melted down for scrap.

Federation Intelligence Files

For more data see Federation Intelligence File # DS9-2370-3486


Both Memory Alpha and Memory Beta were used as referances as well as TV episodes DS9: "Profit and Loss", DS9: "Armageddon Game. Also used was the DS9 short story: Change of Heart.


This file was updated and approved by the SDC on 7 June, 2012

Content from this article may have
come partially, or entirely from
Memory Alpha

This profile was revised by the Species Development Committee.
REV 239401.31
Please add any new information discovered during the course of a mission or shore leave.