Liiijmui O^.uinr 



81 



PULMONATA 



Two species of Limax are common both at Lagima Beach and 

 Claremont. They have been provisionally determined by Mr. 8. S. 

 Berry, as Limax maximus Linn, and Limax flavus Linn. They differ 

 in color, both being of a yellowish-gray, but Li mar nid.fi nuts is spot- 

 ted and streaked with black, while Limax flavus has no black spots. 

 There are also some anatomical differences. Limax maximus is, 

 when fully grown, about two inches long; Limax flavus is somewhat 

 smaller. 



Figure 42. Circulation of Limax flavus 



Limax maximus L. 

 (Figure 40) 



Limax flavus L. 

 (Figures 41 and 42) 



PELECYPODA 



FILIBRANCHIATA 



Mytilus californianus Conr. 



(Figure 43) 



The species is gregarious, forming extensive mussel-beds on flat 

 rocks exposed to the surf. There are several large colonies of them 

 at Lagima, notably the one at Mussel Point, which furnishes to the 

 villagers endless supplies for food and for bait. 



Mytilus bifurcatus Conr. 



More generally distributed along this coast than M. ralifornianus. 

 Sometimes very numerous on rocks uncovered at low tide. 



