58 THE XAUTILUS. 



POLYPLACOPHORA. 



Chsetopleura Hartwegii Cpr. 

 Tonicella lineata Wood. 

 Ischnochiton Cooperi Cpr. 

 ^Mopalia ciliata Sby. 

 Mopalia ciliata, sub-species lignosa Gld. 

 ^Mopalia ciliata, sub-species Hiudsii Sby. 

 Mopalia Avossnessenskii Midd. 

 Katherina tunicata Wood. 

 Xuttallina scabra Rve. 

 Ciyptochiton stelleri Midd. (young). 



MOLLUSKS IN THE PORTLAND. OREGON. MARKET. 



BY HARRY E. DORE. 



Prof. Keep's article ia the January number of The Nautilus 

 on the MoUusks in the San Francisco market interested me very 

 much as it was in direct line with observations and notes made by 

 me here in Portland a little more than a year ago. 



The small number of species which are usually exposed for sale 

 is as noticeable here as it is in San Francisco though not so much 

 to be wondered at for we are 120 miles from the ocean and further 

 still from points whese the mollusks are to be found, but I find that 

 occasionally something out of the ordinary run is sent to the fish 

 dealers, as for instance : about three years ago the deep sea fisheries 

 were first attempted and the schooner " Geo. H. Chance" started 

 outside the Columbia River Bar from Astoria for fish. Through 

 lack of experience the nets were thrown too deep and were badly 

 cut by the large pectens, Aviusium caurinum Gld. allowing many 

 of the fish to escape. In the first shipment to Portland were about 

 two dozen large fine examples of this beauty, nearly all of which 

 I was fortunate enough to secure at a moderate price. I have never 

 seen it in the market since. At another time I secured one very 

 large and perfect example of Lunatia Leivisii Gld. sent with bivalves 

 to the market. 



In this connection I will state that I remember when a boy and 

 living in San Francisco that Macoma nasuta Conr. was commonly 

 sold in the market ; it was veiy abundant on the mud flats near Long 



