Fig. 



Cytherea concentrica 84 



juvenilis 85 



86 



Lucinaundata 87 



89 



Cytherea pectinata 90 



— — gibbia 91 



92 



93 



Cytherea divaricata 94 



Crassatella contraria 95 



96 



Cytherea scripta 97 



Lucina edentula 98 



99 



Cytherea gigantea l 00 



Venus papilionacea 103 



106 

 Venerupis perforans 108 



112 



113 



Cyrena fluminea 114 



fuscata 115 



116 



SPONDYLUS. PI. 9. 

 Plicatula ramosa 3 



4 



CHAMA. PL 9. 



Icosardia Cor 1 



Tridacna Gigas 2 



Hippopus maculatus 3 



Cardita sulcatus 4 



Fig. 



Icosardia Moltkiana 5 



Trigonia pectinata 6 



Cardita turgidus 7 



trapezoides 8 



phreniticus 9 



calyculatus 10 



Cypricardia Guinaica 14 



Cardita concameratus 15 



16 

 Cypricardia coralliophaga ... 17 



Charaa damicornis 18 



Lazarus 19 



unicornis 20 



21 



Chama gry phoides 22 



calcarata 23 



radians 24 



ARCA. PI. 9. 



Area inaequivalvis 4 



5 

 6 



Area Helbingii <.. 7 



8 

 10 

 11 

 13 

 15 



Cucullasa auriculifera 16 



Area rhombea 19 



20 

 23 

 25 



Nucula Nicobarica 26 



■ pella 27 



