THE XAUTII.l>. 



to our membership are now published in THE NAUTILUS. Our 

 Chapter is so large that the small amount charged for dues, for one 

 member, is consumed by the. time the new one has been introduced 

 by postal card to all the members of the chapter. THE NAUTILUS 

 is our chapter organ and no member can afford to be without it. 



The Juvenile Section is reported in The Observer, Portland, 

 Conn., May number page 265, under the title " Notes from Young 

 Conehologists." 



AN INTERROGATION REGARDING THE FOSSIL SHELLS OF 

 SAN PEDRO BAY. 



[An Extract from the Report of the Hon Delos Arnold. From the Transactions of 

 the Isaac Lea Conchologicul Chapter for 1895]. 



It is probable there are many species of shells undiscovered in the 

 hidden recesseiTof our extended shores, that will be revealed from 

 time to time as our facilities for systematic collecting are increased. 

 This feature of the question cannot but inspire the devotees of con- 

 chology both old and young with a keen interest. The possibility, 

 not to say strong probability, of being instrumental in adding new- 

 forms to the accumulating list is an ever present incentive to earnest, 

 careful and intelligent observation. To lend color to the idea of the 

 existence of undiscovered species in this region, is the fact that 

 among three hundred or more species and varieties of Quaternary and 

 Tertiary marine fossils that have been discovered in the rocks and 

 raised beaches in the vicinity of San Pedro Bay there are many 

 that are supposed to be extinct in this locality, and yet, the same or 

 nearly allied species are known to be living along the shores of 

 Alaska and Washington, and some even as far south as the northern 

 shores of California. Among there are ; Muchcera pntula Dixon, 

 Pi'iene Oregoneiisis Redf., Pi:deii hantatus Sby., AV-ww Gali/ornica 

 <Jonr. and others. 



There are several species, also, that are occasionally found alive 

 at Santa Cataline Id. and possibly in the water in San Pedro Bay, 

 whose scarcity excites the suspicion that they are " in the course of 

 ultimate extinction," or at least, in the Hue of departure. Among 

 these are : 



CJwysodomui tabulatus Buird. 



Fusus Barbarensis Trask. 



