PLATE 12 



Horaalonotus cf. vanuxemi Hall 



(See plate 221 



Page 67 



i Fragment of a cephalon 

 Locality. Matagamon lake 



Dalmanites pleuroptyx Green 



Page 66 



2 A slightly distorted cephalon with very characteristic frontal 

 crenulations 



Locality. Blind Cove point, Telos lake 

 3, 4 Pygidia of this species 



Locality. Folsom farm, Moosehead lake 



Dalmanites ploratus Clarke 



Page 66 



5 A pygidium showing the characteristic surface 

 Locality. Matagamon lake 



Dalmanites sp. nov. 



Page 67 



6 An incomplete pygidium with sparse coarse ribs and slender caudal 



spine 

 Locality. Blind Cove point, Telos lake 



Dalmanites sp. 



Page I : 



7 A well segmented pygidium with rounded and upturned caudal 



extremity 

 Locality. Matagamon lake 



Dalmanites sp. 



Page 67 



8 A pygidium of an unrecognized species 

 Locality. Tomhegan point, Moosehead lake 



190 



