Velutina, Fleming. 



839 Isevigata, Penn. 



840 lanigera, Moll. 



841 Schneider!, Friele. 



842 derugata, Becher. 

 Morvillia, Gray. 



843 undata, Brown. 

 Velutella, Gray. 



844 flexilis, Montg. 

 Lamellaria, Montagu. 



845 perspicua, Lin. 



846 tentaculata, Montg. 

 Onchidiopsis, Bergh. 



847 grcenlandica, Bergh. 



Marsenia, Gray. 



848 prodita, Love"n. 



849 micromphala, Bergh. 

 Natica, Adanson. 



850 clausa, Brod. & Sow. 



851 a. elatior,'Midd. 



852 affinis, Gmel. 



a. vittata,"Jeff. 



853 flammulata, Requ. = Sagraina, Weink. 



854 Dillwynii, Payr. 



#.~efasciata, i Monts. 



855 hebraea,-Martyn. 



856 millepunctata,;Lamk. 



857 Adansoni, Phil. M. 

 Lunatia, Gray. 



858 grosniandica, Beck. pusilla, F. & H. 



859 sordida, Phil. 



860 catena, Da Cos. 



86 1 pulchella, Risso. = Alderi, Forbes. 



862 a. subovalis, Jeff. 



863 b. conica, Jeff. 

 c. lactea, Jeff. 



864 Montagui, Forbes. 



865 a. conica, Jeff. 



b. albula, Jeff. 



866 nana, Moll. 



867 porcelana, D'Orb. 



868 Guillemini, Payr. = marmorata, Risso. 



869 trifasciata, Say. 



870 immaculata, Totten. 



871 intricata, Don. = Valenciensii, Risso. 



872 a. similis, Monts. 



b. lactea & fusca, Monts. 

 872* intricatoides, Hidalgo. 



873 variabilis. Recluz. 



Lunatia, Gray. continued. 



874 macilenta, Phil. 



875 Rizzae, Phil. 



?*txeii2 ~ - 



876 marochiensis, Gmel. 



877 heros, Say. 

 Amauropsis, Morch. 



878 islandica, Bean. 

 Neverita, Risso. 



879 Josephinae, Risso. 



880 duplicata, Say. 

 Ampullina, Lamarck. 



881 Smithii, Brown. 

 Sequenzia, Jeffreys. 



882 eritima, Verrill. 

 Adeorbis, S. Wood. 



883 subcarinata, Montg. 



D. Ptenoglossa. 



Janthina, Bolten. 



884 rotundata, Leach. 



885 bicolor, Menke. 



886 nitens, Menke. 



887 a. splendens, Monts. 



888 pallida, Phil. 



889 exigua, Lamk. 

 Acirsa, Morch. 



890 subdecussata, Cantr. 



891 borealis, Beck. =Turr. Eschrichtii, Holb 



& Moll. 

 Scalaria, Lamarck. 



892 communis, Lamk. 



893 clathrus, Lin. M. 



894 Turtonae, Turt. 



895 a. planicosta, Biv. 



896 commutata, Lamk. = pseudoscalaris, 



Brocc. 



897 Cantrainei, Weink. 



898 Trevelyana, Leach. 



899 frondosa, S. Wood. 



900 a. soluta, Tiberi. 



901 b. algeriana, Weink. 



902 crenata, Lin. 



903 cochlea, Sow. M. 



904 hellenica, Forbes. 



905 pulchella, Phil. 



906 clathratula, Montg. 



907 candidissima, Monts. 



908 coronata, Phil. M. 



