29 



AcepluiliiLiuiullibmuchiala (ii iu 16-J or 38 per cent. 



Pteropoda '2 „ 2 „ 100 ,, 



(jrasteropoda prosobranchiata 75 ,, 177 ,, 42 ,, 



Gasteropoda oijisthobrancliiata 7„ 11 „ 6i „ 



Total, 14G in 352, or 41 per cent. 



MOGADOR. 



Iu the mouth of xlpril, 1859, I spent two days at Mogador, in the 

 south west of Morocco, when I obtained 110 species of mollusca; 

 the following is the list, not previously published — 



ACEPHALA LAMELLIBEANCHIATA. 



