While in hypertonic environment diamondback terrapins (Malaclemys centrata) slowly lose
water by osmosis through the integument and as urine through the kidney. Small amounts of …

Diamondback terrapins are brackish-water turtles that can be caught wild in regions of
different or varying salinity (Dunson, 1970). When acclimatized either to fresh water or to sea …

The blood of the diamondback terrapin going from fresh water to 50% sea water shows an
increase in its osmotic pressure which is mainly due to an increase in Na and Cl …

The efflux of sodium ions from the loggerhead turtle, Caretta caretta, was investigated when
animals were acclimated to seawater, freshwater, and during the acclimation period after …

Fresh‐water softshell turtles (Trionyx spinifer) showed net uptake of sodium from solutions
as dilute as 5 m̈M. Chloride uptake could be accounted for by passive processes. There …

Saline waters are a rigourous environment for reptiles in the sense that very few species are
able to cope with the problems of hypoosmoregulation. Extracellular fluid concentration is …

Sea turtles can regulate levels of the majority of the solutes (the monovalent ions) in their
body fluids via the secretions of the post-orbital salt glands. The concentration of these …

1. Water loss, plasma Na+ and K+ and urine Na+ and K+ were measured in Gopherus
polyphemus during a period of water availability and a period of water deprivation in the …

Kinosternon b. baurii, listed as threatened by the state of Florida, is still relatively common in
favorable habitats in the Lower Florida Keys. A total of 137 turtles were captured on the …

1. The diet of the lizards Amphibolurus ornatus consists mainly of sodium-rich ants. 2. 2.
During mid-summer the lizards lack sufficient free water to continue the excretion of …