Book,  Paragraph

1  II,  13 |        covered not with a spiny operculum, as in all but the selachian
2  IV,  3  |     terminates outwards, at the operculum, as has been previously
3  IV,  4  |    furnished from birth with an operculum. And, further, all stromboid
4  IV,  4  |       when they turn back their operculum, for this operculum seems
5  IV,  4  |       their operculum, for this operculum seems like a lid; in fact
6   v,  7  |       the circumstance that its operculum is larger, more elevated,
7   v,  7  |       more hairy, and into this operculum it spawns its eggs and in
8   v,  15 | so-called tongue underneath the operculum. The tongue of the murex
9 VIII,  13|       they are provided with an operculum on the free surface, as