Abstract
1. 1. Sodium, potassium, calcium and magnesium have been determined in the blood of hydrated specimens of Helix pomatia, Cepaea nemoralis, C. hortensis, Arianta arbustorum, Archachatina marginata, Arion ater ater, A. ater rufus, Lymnaea stagnalis and Planorbarius corneus, and the average values, together with others already published, have been compared. 2. 2. Such averages for sodium, potassium and calcium each vary by a factor of 2–2·5 while those for magnesium vary by a factor of 12. 3. 3. There is a positive correlation between the average concentrations of calcium and magnesium. 4. 4. In the Stylommatophora, there is a negative correlation between the average concentrations of sodium and magnesium, perhaps related to a similarity of osmotic pressure in hydrated specimens.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.