Author: (Robalo, Almada, Sousa Santos, Moreira & Doadrio, 2005)
Comments: Found in small coastal streams that have a greatly reduced water flow in the dry summer period (Ref. 55625).  During dry summer time, fish become concentrated in a few pools seeking shelter in shady areas under the cover of vegetation (Ref. 55625).  Occur in lower stretches of rivers.  Threatened due to pollution, intensive agriculture and water abstraction.  Size reaches up to at least 9.5 cm SL (Ref. 59043).