PLATE XVII. 



Fio. 

 1. 



2. 

 3. 

 4. 



7. 

 8. 



Nepiunc.a despecta (Linne). Little Oakley (Harmer Collection) 

 var. intermedia, nov. Little Oakley, (Harmer Collection) 

 var. decemcostata, Say. Little Oakley. (Harmer Collection) 

 ditto. Bramerton. (Norwich Museum) 



var. carinata, Pennant. Little Oakley. (Harmer Collection) 

 var. suhantiqiiata, Maton and Rackett. Recent, Polar Seas 



(Harmer Collection) .... 

 ditto. Little Oakley. (Harmer Collection) 

 var. behringiana, Middendorff. (Harmer Collection) . 



Page. 



IGO 

 165 

 161 

 161 

 162 



163 

 163 

 164 



