PLATE LXXX. 



riG. 



1,1a. Valkekia tkemula, p. 554. 



-, polypide expanded, and cells showing 



the setose operculum. 

 3. Triticella pedicellata, p. 547. 



-, zooecium, showing the ventral side 



and the aperture. 



-, zooecium, with polypide expanded. 



After Alder. 



6. Triticella Korenii, p. 545. After G. O. Sars. 



See Plate XLV. figs. 8-10. 



7. Triticella flava, p. 543. After Dalyell. 



8. Cylindr(ecium pusillum, p. 537*. 



9. ? Cylinur(ecium pusillum, dwarf var., p. 538; 



or possibly a distinct species. 



* This figure is defective in not showing the expansion at the base of the 

 zooecia. See woodcut, p. 5.38. 



