29 



^'mtlUf^ <t\unn. 

 MOLLUSC A. 



ORDER I. 



PTEROPODA. 



1519 HyaljEa cuspidata, Lam-, Atlantic Ocean. 



1518 " tridentata, *' Mediterranean. 



Clio borealis, Linn., New-York. 



Cleodora 



Limacina 



Cymbulia 



Pneumodermon 



ORDER II GASTEROPODA. 



SEC. I.-HYDROBRANCHI^. 

 TRITONIANA. 



Glaucus 



EOLIS 



1544 Tritonia 



1548 SCYLL^A 



Tethys 

 1554 Doris 



Phyllidia 

 Chitonellus 



Hombergii, Lam.," Boulogne, 



pelagica, Lam., Boulogne. 



argus, Lam., Boulogne. 



PHYLLIDIANA. 



