Ecological Risk Screening Summary - Typhlobelus macromycterus (a catfish, no common name) - Uncertain Risk

Species that are considered uncertain risk need a more in-depth assessment beyond the Risk Summary to better define the species’ risk to U.S. environments.

Typhlobelus macromycterus is native to South America and has been found in the Tocantins River near Tucuruí, Pará, Brazil. Fish belonging to the genus Typhlobelus are generally psammophilic (loose sand) in preference for habitat. T. macromycterus was described as a species from the one and only specimen ever found. There is no information or documentation on introductions outside of its native range; therefore, the history of invasiveness is uncertain. T. macromycterus has a low climate match within the contiguous United States. Due to lack of information about potential introductions, the certainty of assessment is low. The overall risk assessment category for this species is uncertain.