78 McCMURRICH. 
DESCRIPTION OF PLATE III. 
Fic, 1. Transverse section of directive mesentery of Aipfasia annulata. X 30. 
Fic. 2. Transverse section of mesentery of I. cycle of Aiptasia tagetes. X 44. 
Fic. 3. Diagrammatic transverse section of column of Azf/asia tagetes, showing 
the arrangement of the mesenteries. 
Fic. 4. Longitudinal section of the upper part of the column of Condylactis passt- 
flora, showing the absence of a special sphincter.  X 50. 
Fic. 5. Portion of a transverse section of a contracted tentacle of Condylactis 
passiflora. X 185. 
Fic. 6. Portion of a transverse section of a mesentery of Condylactis passifiora, 
showing the arrangement of the mesoglceal muscle processes.  X 60. 
Fic. 7. Transverse section of the sphincter muscle of Bunodes teniatus. X 45. 
Fic. 8. Longitudinal section of column wall of Ax/actinia stelloides, passing 
through two verrucal tubercles. X 52. 
Fic. 9. Transverse section of sphincter muscle of Au/actinia stelloides. X 60. 
Fic. 10. Diagrammatic transverse section of a sextant of the column of Aulac- 
tinia stelloides, to show the arrangement of the mesenteries. 
Fic. 11. Pseudo-tentacle of Ledrunea neglecta, expanded. Natural size. 
Fic. 12. Transverse section through the basal portion of the pseudo-tentacle of 
Lebrunea neglecta. X4l. 
Fic. 13. Transverse section through a tentacle, towards its tip, of Ledrunea 
neglecta. X 114. 
Fic. 14. Transverse section through basal portion of mesentery of Ledrunea 
neglecta. X72. 
Fic. 15. Transverse section of sphincter muscle of Discosoma anemone. X65. 
Fic. 16. Longitudinal section through column wall of Dzscosoma anemone, to 
show the elevations of the mesogloea.  X 83. 
