25-32. Conolampas sigsbei (A. Ag.). 



25. Sphaeridium. X 95. 



26 Valve of ophicephalous pedicellaria. X 95. 



27 Side view of base of valve of ophicephalous pedicellaria. X 95. 



28. Blade of valve of triphyllous pedicellaria, seen from above. X 42o. 



29. Side view of valve of triphyllous pedicellaria. X 425. 

 30 Valve of tridentate pedicellaria. X 95. 



31. Oblique view of blade of valve of tridentate pedicellaria. X 95. 



32. Calcareous particles from abactinal tube-feet. X 42o. 



