Pseudocellus pearsei is an arachnid species in the order
Ricinulei. It occurs in caves in Yucatan, Mexico.
References
Chamberlin & Ivie, 1938 : Arachnida of the orders Pedipalpida, Scorpionida and Ricinulida. Fauna of the caves of Yucatan, Carnegie Institution of Washington Publication, n. 491, p. 101-107
G. Talarico, J. G. Palacios-Vargas & G. Alberti (2008). "Taste while chewing? Sensory structures in the chelicerae of Pseudocellus pearsei (Chamberlin & Ivie, 1938) (Ricinulei, Arachnida)". Revista Ibérica de Aracnología. 15: 47–53.