jtaguna Ratine Laboratory 



71 



Fissuridea volcano Roe 



Shells common to the beach in certain localities. Living animals 

 sometimes found in the lower tide-pools. 



Evidently living 



Lucapina crenulata Sby. 



(Figure 35) 



A fine living specimen found at very low tide, 

 mostly below low tide. 



Haliotis spp. 



Young specimens of several species are frequent in the lower tide- 

 pools. Large specimens could only be found below low tide. Aba- 

 lones have evidently been very abundant at Laguna Beach, but whole- 

 sale gathering is depleting them very rapidly. One raid by Japanese 

 fishermen who worked with diving suits, resulted in a very large 

 catch. These fishermen were arrested and fined a nominal amount 

 and were then allowed to depart with their entire catch a pure 

 travesty. It seems probable that by protection, and breeding, a 

 fisheries asset of great value might be built up on this coast. 



Figure 35. Lucapina crenulata. Dorsal and ventral views 



Tegula gallina Fbs. 



Tegula fuscescens Phil. 



Tegula aureotincta Fbs. 



Norrisia norrissii Sby. 



Pomaulax undosus \Yond 



(Figure 36) 



The above five species are common on the rocks between tides, 

 and extend commonly into the upper limits of the fucus zone. 



