Xindi-Aquatic

The Xindi Aquatics were a non-humanoid race that evolved to living underwater. They were one of the six original species of Xindi, with whom they shared a common genetic ancestry

Overview
Unlike the Reptilians and the Insectoids, the Aquatics were complicated and enigmatic and were known to over-analyze, taking an excruciatingly long period of time to come to decisions; they once took six days just to agree to attend a specific meeting of the Council. However, the Aquatics' prudence was at times what kept the Council from breaking apart, which is why Degra had them build the weapon.

They responded better to visual stimuli and were extremely suspicious of the spoken word. They admired boldness and confidence and treated hushed tones with suspicion.

In 2154, one of their representatives to the Xindi Council was Kiaphet Amman'sor, a member of the extremely wealthy Ibix Dynasty. She wielded considerable power within the Xindi hierarchy.

Physiology
The Aquatic females were larger and had rougher skin than the males who were more slim and had smoother skin. Females had a more humanoid-looking face, whereas male faces were rounder. They had slit-like irises in their eyes and were capable of seeing far better, underwater, than humanoids were. Aquatics had three fingers on each forelimb, ending in short fingernail-like claws, with webbing in-between for easier swimming. Their skin was a greenish shade and had blotches of olive. Like all Xindi, they had a fold at the top of their cheekbone. They had tails for maneuverability and their hind limbs were fins.

Language
Xindi-Aquatic communication was highly complex and, since the Aquatics were underwater beings, they did not use their mouths. When using the past tense, they switched to SONAR. Aquatics learned the Human language in 2154 in order to communicate with that species.

History
During the Great Diaspora in the 2030s, the different Xindi species engaged in a civil war that ended with the destruction of their homeworld. The Xindi-Aquatics, like all the Xindi, had to colonize other worlds in order to survive. Thanks to the Guardians, they were able to find habitable worlds. The Xindi were then taught to think of the Guardians as god-like beings. In the 2140s, the Guardians warned the Xindi Council that, unless they destroyed Earth, the Humans there would destroy their future homeworld. The Aquatics were originally against the building of a superweapon; however, they changed their minds after the Guardians presented a visual record of their future world's destruction. They eventually agreed to create it and were assigned to build the Xindi weapon, because they were the most level-headed and efficient. The weapon was built underwater on Azati Prime.

In late 2153, they agreed to the launch of a miniature prototype weapon, which killed seven million people on Earth. This led to the Humans sending the Enterprise NX-01 into the Expanse to stop the weapon. Throughout the following year, the Council monitored their advancement, as the Reptilians and Insectoids suggested alternate ways of exterminating the Humans. At the Council meetings, the Aquatic councillors were often the more balanced and level-minded members, suggesting that they continue monitoring them instead of sending a fleet to destroy them right away.

In 2153, after finding the location of the weapon, Captain Jonathan Archer, of the Earth ship Enterprise, tried to use the Insectoid shuttle to get into the weapon and destroy it, but was captured before he could do so. While he was away, the Xindi-Reptilians and Insectoids opened fire on Enterprise, nearly destroying it. Degra didn't trust Captain Archer, but couldn't let go of the possibility that he was telling the truth that the Guardians manipulated the Xindi. In early 2154, after the Xindi Council ordered the Reptilians to cease their attack on Enterprise, Degra had the Aquatics, the only ones he could trust, transport Archer back to Enterprise. After he briefly regained consciousness aboard their vessel, he was put in an escape pod and left adrift for Enterprise to find.

The Aquatics finally decided to help the Humans, when Enterprise promised to destroy the Sphere network. As a result, the Aquatics sent several of their ships with Enterprise, the Arboreals and the Primates, in their concerted effort to fight the Reptilians and the Insectoids. Ultimately, most of their fleet was defeated when the Sphere Builders triggered the spheres to create massive anomalies, which breached the hulls of the Aquatic ships, releasing water into space.

Technology
The Xindi-Aquatic ships were the most powerful and largest of the Xindi races, but compared to Primate and Insectoid ships, they were among the slowest and least maneuverable. Aquatic starships had to have every compartment filled with water for its crew. However, there was at least one room that could be used to house a humanoid and filled with breathable air, and that had a window to water for Aquatics to talk with them.

The largest of their cruisers resembled huge Terran manta rays and were large enough to comfortably accommodate an NX-class vessel in its aft cargo hold. They were extremely powerful in comparison to those of other Xindi, destroying several Reptilian and Insectoid ships with ease at the final battle against the Xindi superweapon. It was only because of the immense anomaly field that they were disabled.

The Aquatics were the inventors of the biometric hologram, which was used to train Xindi surgeons. The Xindi Council chambers were also fit with biometric holograms, as they were used to project viewscreens and images of Human physiology for use in the creation of a bioweapon, as attained by Rajiin.