Fig. 29.— Omtinued. 
Kig. 29: Orihis Michelina; _/", Spiriferina spinosa; g, Spirifera bisulcaia ; h, Eumctria 
Vcrncuiliana ; /, L honetes variolata and enlargement of hin^e ; A\ Productus vittatus. 
Fig. 80. —BliA CIIIOPODA . 
Fig. 80: a, Streptorhynchus radiata ; I, c, Rhvnchonella pyramidata ; d, e, Pentamerus 
galeatus • Mcristclla la:vis ; smaller valve of a Spirifcr showing the internal spiral arms ; A, 
smaller valve of Waldheimia flavescens, with the loop which supports the arms ; z. Piscina lam- 
ellosa, the lower figure being a side view ; i, Obolella Apollinis ■ /, Siphonotrcta unguiculata. 
