PLATE III. 



Pago 



Fig. 1. Chenendopora 3Iichelinn, Hinie. Natural size. From the Upper Green Sand 



at Warminster, Wiltshire 34 



Figs. 1 a, b. The same. Spicules from the interior of the stem of another specimen from 

 the same locality. Enlarged one hundred times. 



Fig. 2. Verruculina 2iustuIosa, Hinde. Showing the inner or upper surface. Natural 



size. From the Upper Chalk at Flamborough, Yorkshire 39 



Fig. 2 a. TJie same. Portion of the outer or under surface of the same specimen. 

 Natural size. 



Fig. 3. Verruculina miliaris, Reuss, sp. A small fan-shaped specimen, showing the 

 inner or upper surface. Natural size. From tlie Upper Chalk at Flam- 

 borough 39 



Fig. 3 a. The same. Portion of the under surface of the same specimen. Natural size. 



Fig. 4. Verruculina seriatopora, Rcemer, sp. Spicules of the interior skeleton. En- 



larged sixty-four times. From the Upper Chalk at Ahlten, Hanover ... 36 



Fig. 5. Verruculina astrcea, Hinde. Showing the inner or upper surface. Natural 



size. From the Upper Chalk at Flamborough 37 



Fig. 5 a. The same. Portion of the under or outer surface of the same specimen, 

 showing the minute pores. Natural size. 



