The Pseudotothyris obtusa lives in the demersal, freshwater environment.
Hisonotus leucofrenatus, Pseudotothyris obtusa and Schizolecis guntheri had few records during the observations. Nevertheless, they occupied the bottom, in depths varying from 40.5 to 88.0 centimeters and preferred the edges of the stream. Crenicichla sp. More
Nystyvaajamonni in Finnish (suomen kieli)