Ummite vs Eben
No. Ummites are tall human-like correspondents from the Spanish Ummo letters; Ebens are small grey beings from the Project Serpo story.
The difference
Two visitors known through documents rather than sightings. The Ummites wrote thousands of letters to Spanish researchers from the 1960s and were described as tall, human-like scientists; the Ebens were described in the 2005 Project Serpo postings as small grey hosts of a human exchange team.
The Ummo letters were claimed as a hoax by their likely author; the Serpo story has never been sourced at all.
At a glance
| Field | Ummite | Eben |
|---|---|---|
| Classification | Contactee lore | Fictional |
| Evidence | Contactee lore | Fictional, Contactee lore |
| Claimed origin | Iumma (lore; Wolf 424) | Zeta Reticuli (lore) |
| Homeworld | Ummo | Serpo |
| Reported height | 5′9″ – 6′6″ | 4′3″ – 4′9″ |
| Appearance | Human-like, fair, athletic, indistinguishable in a crowd | Grey-like with more human features, tan skin, large dark eyes |
| Lifespan | Described as similar to human | Described as 350–400 years |
| Social structure | Described as a rational, non-hierarchical society | Described as village-based and communal |
| Technology | Described in thousands of pages of technical letters | Described as advanced but pastoral in daily life |
| Traits | Discreet, scientific, observant | Hospitable, patient, communal |
| Relationship to Earth | Claimed to live among us and study Earth since 1950 | Alleged 1965 exchange programme with twelve US military personnel |
How to tell them apart
- Ummite is reported as the taller of the two (5′9″ – 6′6″, against 4′3″ – 4′9″ for Eben).
- Ummite is filed under Human-like types; Eben under Greys.
- Reported height: Ummite 5′9″ – 6′6″; Eben 4′3″ – 4′9″.
- Claimed origin: Ummite Iumma (lore; Wolf 424); Eben Zeta Reticuli (lore).
- Neither appears in any of the Atlas case files; both are known through literature rather than sightings.
In their own dossiers
The letters described Ummites as human in every visible respect: tall, fair, physically fit, with slightly larger and more sensitive fingers and a reduced sense of taste. They claimed to walk unnoticed in European cities and to have adopted local names and jobs. There is, by design, nothing to see; the Ummite is a being of letters.
The Serpo emails described Ebens as about four and a half feet tall, with large heads, large dark eyes, tan or brownish skin, small noses and mouths, and bodies more human in proportion than a Grey's. They were said to be a single race with little variation, living in small communities under a bright double sun.
More comparisons
XenoAtlas documents extraterrestrial concepts appearing in mythology, contactee literature, popular culture, speculative accounts, and related sources. Inclusion does not constitute scientific verification.



