Mexican Cave Where Cavefish Astyanas mexicanus Live (image) Marine Biological Laboratory Share Print E-Mail Caption Jeffery lab collaborators Helena Bilandzija and Branko Jalzic are shown at a cave in the northeastern Mexican mountains where Astyanas mexicanus live. Jeffery led the expeditions that collected the fish and measured the cave water for this study. Credit William Jeffery/MBL Woods Hole Usage Restrictions Please use with proper credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.