34 THE NAUTILUS. 



strings of egg-capsules of Busycon perversum ; one in my collec- 

 tion is 27 inches long and full of young shells. On this same 

 string are attached seven capsules of Fasciolaria distans full of 

 young shells. 



EPIPHRAGMOPHORA FIDELIS (GRAY) NEAR SAN FRANCISCO BAY 1 



BY G. DALLAS HANNA. 



Several years ago Edson (THE NAUTILUS, XXV, 18, 1911) 

 gave a list of land mollusks which he found at the high head- 

 land called San Mateo Point in San Francisco Bay. He there 

 questioned the former record by Gifford (THE NAUTILUS, XIV, 

 p. 144, 1901) of the above species at that locality. Button 

 (THE NAUTILUS, XXV, 59, 1911) suggested that the specimens 

 were perhaps exotic, having been brought to that locality in the 

 oyster traffic which took place between Puget Sound and San 

 Francisco Bay some years before. This was followed by Gifford 

 (op. cit., p. 60) again, who stated that he was not only positive 

 of his identification but that he had collected the species there 

 a second time, in 1910. 



The locality is so far from the usual range of this northern 

 species that the record seemed to warrant investigation on the 

 ground. So far as available records show it has not been taken 

 south of Cape Mendocino, Humboldt County, California. 



The point on the bay referred to is known as Cayote Point on 

 many maps. It is a hill of Jurassic chert about 100 feet high 

 which projects into the bay about 18 miles south of San Fran- 

 cisco. A roadway leads to it across a salt marsh from Burlin- 

 game. It consists of about 300 acres, not one and one half as 

 stated by Edson, densely wooded with eucalyptus. A few Mon- 

 terey cypresses and pines have been planted here and there. 

 The soil is very dry. The point is an island in so far as land 

 snails are concerned. Under present conditions they could not 

 reach the place of their own accord. 



It happened that in August 1921 fire swept through the forest 

 and consumed all leaves, sticks, grasses and underbrush, leaving 

 only the bare ground. Among the ashes are the charred re- 



