32 



795 Fissiirella dypeiformis 



796 crenulata 



797 



798 



799 



800 . 



801 



802 cancellata^ Solander 



SIPHOJVARI^, SowERBYs' Genera of Shells. 



803 Siphon aria Sipho, several varieties and many 



specimens 



804 Mouret; 3fouret, Adamon 



805 concinna 



806 Tristensis ? 



807 exigua 



808 Gigas 



809 ohliquata 



PILEOPSIS. 



810 Pileopsis Ungarica 



811 Mitrula 



812 subrufa 



812a = Cassida, Patella Cassida, Dillw. 



813 intorta ? 



813a Calyptra, Patella Calyptra, DiUvv. 



CALYPTRJEA. 



814 Calyptraea Extinctoriumj Sowerbys' Genera of 



Shells, No. 23 



815 spinosa, Id. 



816 equestris 



817 Chinensis 



818 Pileus, Nobis; Trochus Pileus, Lam. 



819 dilatata. Nobis 



