THE LINNEAN GENERA. 



xvu 



Linnean Genera. 



12. Chama 



13. Area 



14. Ostrea 



15. Anomia. 



16. Mytilus 



17. Pinna. 



18. Argonauta, 



<: 



Lamarckian Genera, Plate. 



f Chama 9 



I Cardita 9 



Cypricardia 9 



Isocardia 9 



Tridacna 9 



LHippopus 9 



f Area 9 



f Cucullaea 9 



I Pectuncidus 10 



{.Nucula 9 



fOstrea 1 1 



Crenatula 11 



Perna 11 



Malleus 11 



Pedum 11 



Lima 1 1 



Gryphaea 10 



_Pecten 10 



f Anomia H 



I 



I Plaeuna 12 



J Crania 1 1 



] Orbicula 11 



Terebratula 11 



(_ Hyalsea 11 



f Mytilus 12 



Saxicava 12 



Anodon 12 



\ Modiola 12 



Avicula 12 



.Meleagrina 12 



Pinna 12 



t Argonauta 13 



X Carinaria IS 



b 



< 



Figure. 



18 

 4 



17 

 1 

 2 

 3 



2 

 16 

 36 

 27 



74 

 82 

 80 

 58 

 75 

 54> 

 1 

 1 



3 



SO 

 1 



2 

 24 

 28 



28 

 9 



32 



31 



42 



4 



1—20 



1—3 

 6 



