25 



PECTEN. 



567 Pecten maximus 

 668 medius 



569 . Jacobseus, many varieties 



570 bifrons, two varieties 



671 Ziczac 



572 Laurentii 



573 Pleuronectes, many varieties 



574 obliteratus 



575 Japonicus 



576 Mag;cllanicus 



577 Radula 



578 Rastellum ? 



579 tiirs;idus 



580 aspersus 



581 flavidulus 



582 Plica 



583 glaber 



584 sulcatus 



583 Virgo 



586 unicolor 



587 griscus 



588 distans 



589 IsabeUa 



590 iiodosus 



591 Pallium,, many varieties 



592 Pes-felis 



593 Tigris 



594 imbricatus 



595 bistrionicus 



596 operciilaris 



597 Islandicus 



598 • asperrimus 



599 senatorius 



600 aurantius 



601 varius 



D 



