| Undulus | |
|---|---|
|   | |
| Undulus formosus | |
|  Scientific classification   | |
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Subphylum: | Chelicerata | 
| Class: | Arachnida | 
| Order: | Opiliones | 
| Family: | Phalangodidae | 
| Genus: |  Undulus  C.J. Goodnight & M.L. Goodnight, 1942 [1]  | 
| Species: | U. formosus  | 
| Binomial name | |
| Undulus formosus C.J. Goodnight & M.L. Goodnight, 1942 [1]   | |
Undulus is a genus of armoured harvestmen in the family Phalangodidae. [2] [3] [4] [5] [6] There is one described species, Undulus formosus. [2] [3] It was described from Limestone County, Alabama (United States). [1]
The body length is 1.9 mm (0.075 in). [1]