FRESH WATER MUSSEL (ANODONTA CYNEA). 



PLATE XVL 



. I . a 1 . &de> view UA rnandc &&e> remtn-cd 

 * Dorsal vitv-p*riwn&>xrn, 



i2 Altxifntarr Canal if JVer van* fyttem- 



ft&etltm pti&fvy thro Tteart 



Fig. 5 Organ,' of Sojana* 



**v-M 



Oia? l Trtm&trje 

 SeraaL 



GlandaZar P&rtum, 



Fig.6. aTranwcrst Sector* 



t&ftfndtd with I'/'-.-htfin. 



c. Shod eorpuidfj 



- rva^uiS 



*. A K Jatoum Edinburgh t London 



