Hallucigenia (SciiFii)

Hallucigenia sp. is a genus of xenusiid "lobopodian worms" that originally lived in Burgess Shale-type deposits in Canada and China during the Cambrian as several extinct species of Hallucigenia and was once extinct, but has since been brought back from extinction by SciiFii as several living species and introduced throughout the world's oceans to help boost biodiversity. The generic name reflects the animal's unusual appearance. It is most closely related to both velvet worms and arthropods. Hallucigenia is about 0.5–5.5 centimeters (3⁄16–2 3⁄16 inches) long, depending on a species, and is a tubular organism with seven to eight pairs of slender legs, each terminating with a pair of claws. Above each leg is a rigid conical spine. The head is elongated with two simple eyes, a mouth with radial teeth, and pharyngeal teeth within the front of the gut. The spines of Hallucigenia are made up of one to four nested elements. The spine surface of some Hallucigenia such as Hallucigenia californianus is covered in an ornament of minute triangular 'scales', while the spine surface of other species like Hallucigenia marinus is a net-like texture of microscopic circular openings. All species of Hallucigenia also have hair-like setae lining their fine anterior appendages for use in filter feeding. Hallucigenia of all species are usually solitary animals that spends throughout most of their lives alone except during the breeding seasons. All known species of Hallucigenia alive today are listed as Least Concern due to successful conservation efforts, the animals' wide range and their tolerance to many of the human activities. Hallucigenia species are also economically important food sources for people due to an increasing demand for Hallucigenia legs and eggs.

List of known hallucigenia species

 * Arctic hallucigenia (Hallucigenia arctica)
 * East Pacific hallucigenia (Hallucigenia californianus)
 * West Pacific hallucigenia (Hallucigenia asiaticus)
 * Indian hallucigenia (Hallucigenia indica)
 * Atlantic hallucigenia (Hallucigenia atlantiensis)
 * Mediterranean hallucigenia (Hallucigenia marinus)
 * Porcupine hallucigenia (Hallucigenia hystrix)
 * Common brown hallucigenia (Hallucigenia ursinus)
 * Great white hallucigenia (Hallucigenia megadonta)
 * Southern hallucigenia (Hallucigenia meridialis)
 * Antarctican hallucigenia (Hallucigenia antarctica)