These mysids are stygobites, or cave dwellers. All caves from which this species was collected are completely underwater and entered through water-filled limestone sinkholes. The specimens were collected at depths of 32.8-65.6 ft (10-20 m) in the freshwater layer, occasionally in the upper part of the halocline (a well-defined vertical gradient of salinity). Conditions re mained relatively constant with temperatures around 76.1°F-77.9°F (24.5°C-25.5°C), pH 6.8-7.0, low oxygen (near 2.0 ppm), and high carbon dioxide levels (44-864 ppm).
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