PAL/EONTOGRAPH IC AL SOC I ET Y, 1916 



Harrner, Crag Mollusca. 



E XXXIX 



¥ H 1 M 



H 



A I ffl 



17 



i 



18 



19 



20 



10 11 12 13 





A 



21 



15 



iil mxh 



2 3 





16 



I' I 



24 





A T 



25 



* 32 



35 



3V 



1 



26 



33 



36 



,ilj 



27 



* V 



37 



28 



i'i 



38 



39 



40 



41 



44 



i - 



48 



AT 



46 



50 



51 



49 



■J . Green, del. 



London Stereoscopic Co. Imp. 



