PLATE LVIII. 



FIGS. 



1. Leptoclinum atsperwu M. Edw. (p. 45) A colony 

 investing a root of Lamiuaria : natural size 

 (M. Edwards, pi. viii, f. 3). 



2-6. Leptoclinum durum M. Edw. (p. 46) 2. A colony 

 attached to a stone : natural size. 3. Part of the 

 same : x 4. 4. Calcareous granules from the 

 same: magnified. 5. A colony: natural size 

 (M. Edwards, pi. viii, f. 4). 6. Part of the 

 same: much enlarged (M. Edwards, pi. viii, f. 

 4). a, individuals with the "labial border" 

 projecting; b, one with a dilated aperture, the 

 ' labial border " not apparent ; c, one with a con- 

 tracted aperture. 



7-10. Lfptodimi'in ful yens M. Edw. (p. 47) 7. A colony 

 from Saint's Point, Guernsey : natural size. 8. 

 Calcareous crystals from the same : magnified. 

 9. Showing the star-like disposition of the same : 

 less highly magnified. 10. A colony : natural 

 size (M. Edwards, pi. viii, f. 5). 



