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1 Skull Terebratula. 2 Wccved Aromia. 3 Placenta Placuna. 4 Latchet Vul- 

 sella. 5 Masked Crania. 6 Peron's Cymbulia. 7 Dutk Lingula. 8 Oyster-like 

 Discina. 9 Pyramidul Cl.eodora. 10 Striated Cliitonelhis. 11 Helix-like Lima- 

 cina. 12 Three-toothed Hyalcea. 13 Fasciculated Chiton. 14 Plumed Pleuro- 

 branchus. 15 Common Patella. 16 Prickly Crepidula. 17 /S//< Emarginula. 

 18 Oblong Ancylu-s. 19 Chinese Calyptrcea. 20 (rree* Fissurella. 21 Rayed 

 Sipho. 22 Australian Parmophorus. 23 O^cti Eullcea. 24 Indian Umbrella. 

 25 Radiated Laplysia. 26 Feather-like Lamilaria, 27 Retusa Plicata. 28 TFooc^ 

 iiX-e ^wWa. 29 Flexible Akera. 30 Iv'^tte DiapMna. 31 Hungarian Pileopsis. 



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