Pseudolithoxus is a genus of suckermouth armored catfishes with five described species from the basins of the Orinoco, Casiquiare and upper Rio Negro in Venezuela. Additionally, a possibly undescribed species is known from the Trombetas and Nhamundá rivers in Brazil.
Pseudolithoxus is a genus of suckermouth armored catfishes with five described species from the basins of the Orinoco, Casiquiare and upper Rio Negro in Venezuela. Additionally, a possibly undescribed species is known from the Trombetas and Nhamundá rivers in Brazil.
==Taxonomy== The species group was originally described in 2000 and the four species were temporarily placed in Lasiancistrus. In 2001, the genus Pseudolithoxus was erected for these species. This group forms a monophyletic sister group to Lasiancistrus and Ancistrus. P. anthrax and P. nicoi likely represent sister species. In 2011, P. kelsorum was described based on type material from Venezuela.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).