AT: "xx" These are an unidentified non-humanoid species observed in the 22nd century.
Akaali creatures
Akaali gargoyle
A statue of a gargoyle-like creature could be seen in an antique shop on the Akaali homeworld. (ENT: "Civilization")
Akaali horned creature
This head of a creature with one ram-like horn could be seen in an antique shop on the Akaali homeworld. (ENT: "Civilization")
Akaali birds
At least three types of stuffed bird could be seen on display in an antique shop on the Akaali homeworld. (ENT: "Civilization")
Akaali long animal
A statue representing a somewhat long-bodied vaguely piglike animal was on display in an antique shop on the Akaali homeworld. (ENT: "Civilization")
Archer IV wildlife
Archer IV contained several unnamed species. (ENT: "Strange New World")
Klingon food animal
The skull of an unknown animal was found in the kitchen of the IKS Somraw. (ENT: "Sleeping Dogs")
Loracus Prime termites
Profiles of a number of termite species native to Loracus Prime were seen in the Handbook of Exobiology. (ENT: "Strange New World")
Mirror universe animal
In the mirror universe, Phlox was seen experimenting on a mammalian looking animal. (ENT: "In a Mirror, Darkly")
"Shroomies"
A bipedal species, from an unknown star system.
This species, and their technology were unknown even to the Vulcan database. They chased the Enterprise NX-01 in September of 2151, and did not respond to hails. Then they returned several other times, now causing significant damage. During one attack, this species activated a dampening field, while two of its crew boarded Enterprise. They were fired at by Captain Archer, but the phase pistol had no effect. They soon left. (ENT: "Silent Enemy")
Background
The species was designed by Dan Curry. John Teska, who built the CGI models, referred to the aliens as "Shroomies" after their mushroom-shaped heads. Other members of the art department, such as Doug Drexler, also used this name. Teska commented on his build, "Some fans out there must know the name of the mysterious aliens from "Silent Enemy", but I'll only know them as ‘the Shroomies'. These lovely bulbous-headed beauties appeared in first season "Enterprise" and were featured in several shots sneaking around the ship and scanning an unconscious human. I recall Dan Curry brought these sketches and we discussed ways to make their appearance and actions non-human – there should be no mistaking them for actors in costume. I had fun fleshing them out in 3D from the pencil drawings. The skin surface had layers of organic texture as if their heads were filled with organs. You probably would not enjoy eating dinner with one if you were invited… which is very rare indeed."[1] Curry later remarked, "I had the opportunity to design the alien creatures. I worked with John Teska up at Foundation Imaging. I wanted their skin to be somewhat transparent, like those fish where you can see their internal organs. John did a great job in creating a creature like that, where it's almost like a jellyfish on the outside and you can see the nerves under the skin. I was very happy with those."(Star Trek: The Magazine Volume 3, Issue 7, p.52)
Skagaran colony creatures
A Human saloon on an unnamed Skagaran colony featured numerous animal skulls and other hunting trophies. (ENT: "North Star")
Spiked pig-like animal
In December 2154, Harrad-Sar served a member of this species aboard his ship. (ENT: "Bound")
Thera flyers
A holographic recreation of Thera included a few large flying creatures.(ENT: "Unexpected")
Xindi Biorifle lifeform
The power source of a Xindi-Reptilian biorifle was formed by an eel-like engeneered lifeforms. These creatures were capable of reproducing, and thrived when exposed to omicron radiation. However, a sustained burst of delta radiation could kill the creature. (ENT: "The Shipment")