271 



PL CXV. 



1. Cytherois vitrea. Of. O. Sars. 



2. Cytherois pusilla, Of. O. Stirs. 



PL CXVI. 

 Pfcradoxostoma variabile, (Baird). 



PL CXVI I. 



1. Paradoxostoma ensiforme, Brady. 



2. Paradoxostoma obliqvum, Of. O. Sars. 



PL CXVIII. 



1. Paradoxostoma Bradyi, U. O. Sars. 



2. Paradoxostoma hibernicum, Brady. 



3. Paradoxostoma pulchellum, Of. O. Sars. 



PL CXIX. 



1. Paradoxostoma abbreviatum, Of. 0). Sars. 



2. Paradoxostoma Normani. Brady. 



:?. Paradoxostoma rostratum, Of. O. Sars. 



