PLAIE 1. 



J 1o 1. Teredo XoT-raojca ,vahT's and paJlets . 



.5. Ditto, luhc (.■xluliiliug roiii am crated slructujx- and Iriiider apertiu'e 



6. T.mcgolara. 7. T.iiavalis paJlets. 



8. l)ittn, tube bi-okeu to show its simple slriuiure . 



9,10,1! . T.l)ippiinala . 12.i;'>.ll-.T.iiialleolus 



Zondon. -Published iy JbTm, Van Voorst. 184&. 



