1915] 



Kofoid: Notes on the Tintiinioina 



67 



gutter above its projecting angle. Its inner margin bears about 20 

 saw-tooth serrations pointed in the clockwise direction. It may l)e 

 significant that this corresponds approximately to the niunber of 

 membranelles described by Fol (1881) for Petalotrkha ampulla. Short 



Fig. 4. Peialotricha cntzi sp. now After Entz, Jr. (190.5, figs. 30-32). Figure 

 4 is a full lateral view showing optical section of the wall, fig. 5 a tilted 

 lorica showing the fluted upper surface of the oral shelf, and the distinctly 

 serrate angle formed by the inwardly projecting nuchal ledge, and longitudinal 

 striae on the lower bowl. Figure 6 is an optical section through the oral region 

 showing the 2-4 layers of alveoli between the inner and outer lamellae. 



Fig. 7. Petalotricha ampulla ainpulla (Fol) Kent, an unusually elongated 

 lorica. Figure 8, the same, normal proportions. These two figures magnified 

 about 333 diameters (based on Reichert obj. S, comp. oe. 4, used by Entz). 



