THE NAUTILUS. 59 



Bridge in IMission Creek at that time. It is probably not sold there 

 now or Prof. Keep would have included it in his list. 



There are practically but four species of raollusks sold commonly 

 in the Portland fish markets : 



1st. The native oyster, Ostrea lurida Cpr. which is so abundant 

 on Puget Sound and Shoal Water Bay. Nearly all of the oysters 

 sold come from either Olympia, Wash, or Oysterville, on Shoalwater 

 Bay, Wash. The few eastern or transplanted oysters sold here 

 are shipped from San Francisco. There are also a great many 

 canned oysters sold here. 



2d. The hard shell clam has an excellent representative in Saxi- 

 donivs sqtialidus Desh., Avhich may prove to be merely a variety of 

 S. nuttalli Conr. These come from Puget Sound and are very 

 abundant, have a large, heavy shell and can be found at all times 

 in the fish markets. They are cheap enough to be indulged in by 

 all, selling for one cent apiece or even less. 



3d. Tapes staminea Conr. is also very common. The variety sent 

 here is larger and fuller than the variety usually sold in San Fran- 

 cisco but not as finely sculptured. 



4th. 3Iya arenaria Linn, as well as Tapes staminea are sent here 

 from Shoal Water Bay, Wash. It was introduced here from the 

 Eastern States and grows to a very large size. 



By the above it would seem that Portland depends upon her 

 neighboring state for her supply of shell fish. There is, however, a 

 source of supply in Oregon which will become better known and 

 its shell fish product more eagerly sought for in the near future — 

 this is Yuquina Bay. Occasionally there are shipped to Portland a 

 few sacks of Ostrea lurida and several boxes of the rock oyster, 

 Pholadidea penita Conr. Newport, at the entrance to the bay, is 

 the home of this fine piddock which attains large size and is excel- 

 lent for eating. 



31achcera patula Dixon and Cardium corbis j\Iart. are also occa- 

 sionally oflfered for sale in the Portland markets ; and the Chinese 

 eat the squid which is sometimes shipped here. 



The edible mussel, Mytilus edulis Linn, seldom finds its Avay so 

 far inland ; but still we seem to have our share of mollusks. 



