PLATE 113. 



Castanellida. 



Diam. Page 



Fig. 1. Castanissa challengeri, n. sp., . . . x 100 1686 



In the lower part of the figure is visible the large corona of teeth around 

 the mouth (a). 



Fig. 2. Castanidium moseleyi, n. sp., . . . x 80 1686 



In the upper part of the figure, at left, is visible the irregular polygonal 

 mouth (a). 



Fig. 3. Castanopsis ?iaresi, n. sp., . . . . .x80 1688 



In the upper part of the figure is visible the smooth circular mouth (a). 



Fig. 4. Castanura tizardi, n. sp., . . . . x 80 1689 



Tig. ia. A single main-spine of the same, . . x 400 



Fig. 5. Castanidium murr uy i, n. sp., . . . .xl00 1685 



With a large phseodium, partly protruded through the circular mouth. 

 Fig. 5a. A single main-spine of the same, hexagonally dimpled, . x 400 



Fig. 6. Castanella ivyvillei, n. sp., . . . x 100 1683 



A piece of the shell with the mouth, armed with six large teeth (a). 



Fig. 7. Castanidium buchanani, n. sp., . . . x 100 1685 



A piece of the shell with the smooth roundish mouth (a). 



s 



