202 



The Scottish Naturalist. 



39. Turgidum, Ehr. 



Correnie. 



40. Venus, Kiitz. 



Little Don ; Old Curling Pond, Haughton ; Tough ; 

 Tonley. 



cosMARiUM (Corda) Ralfs. 



1. Abruptum.) Lundell. 



Whiteley Marsh. 



2. Bioculatum. 



Correnie. 



3. Biretum, Breb. 



Dam ; Little Don ; Baldyoin Dam. 



4. Bceckii, Wille. Little Don ; Tonley. 



5. Botrytis, Menegh. 



B. emarginatum, Hansg. Both forms, common, 



6. Bre/nssonii, Ralfs. 



Correnie. 



7. Broome i, Thwait. 



Tonley. 



8. Calcareum, Wittr. 



Whiteley Marsh. 



9. Contractum, Kirch. 



Whiteley Marsh. 



10. Corbula, Breb. 



Tonley. 



11. Crenatum, Ralfs. 



Tillyfour ; Little Don. 



12. Cruciatum, Breb. 



Tonley. 



13. Cucumis, Corda. 



b. mq/'us, Nord. I common. 



c. helveticum, Nord. ) 



14. Cucurbita, Ralfs. 



Tough. 



15. Danicum, Bergesen. 



Correnie. 



16. Depression, Nag. 



Tonley. 



17. Exiguimi, Archer. 



Tillyfour ; Ditch, Meikle Moss, Alford. 



