THE NAUTILUS. 63 



with nearly the same characters. All of the corrugated speci- 

 mens possessed three holes, while of the nine specimens of this 

 variety one had one hole, two had two holes, and the rest had 

 three. 



Haliotis calif orniens is. The Japanese gardeners at La Jolla 

 are good fishermen also, and frequently gather abalones for the 

 meat. One of them gave me a specimen which for lack of a 

 better name I have given the above name. It is 5^ inches long, 

 4f across, 2 high, and has 11 small nearly circular holes out- 

 side, showing traces of two closed holes. The inside contains a 

 large "pearl" or muscular impression, triangular in shape, and 

 instead of the clear pearly white of H. cracherodii, there are 

 large blotches of brown, green, blue and pink iridescence. I 

 have had many similar specimens from the west coast of Baja 

 California, which have never been determined to my satisfac- 

 tion. Dr. Stearns I believe tentatively referred them to the 

 above species of Swainson. 



Caecum orcutti Dall. This seems to be absent from the lists 

 given in THE NAUTILUS. The type locality was at a point about 

 two miles south of La Jolla' s caves, where under a flat rock I 

 must have found more than 100,000 examples of this minute 

 species. I have sent the U. S. National Museum what I esti- 

 mated as near 50,000 specimens. Avhich 1 believe breaks the 

 record for any single collection in this genus. It has been 

 found at San Pedro, Cal., I believe, and at Todos Santos Bay, 

 Baja California. 



Helix pisana. This snail has been recorded in THE NAUTILUS 

 as from La Jolla (though not in the lists referred to above). 

 The first of September, 1918, I found it for the first time, and 

 reported its occurrence as a menace to California horticulture. 

 A representative of the County Horticultural Commission 

 counted nearly 800 living on one bush about a foot high with a 

 spread of three feet. A dozen would frequently be found on 

 one stem of the wild oak. It seemed to have no preference, but 

 was abundant on native and cultivated plants alike, and thou- 

 sands were observed on the sides of the cement curbing and on 

 the sides of houses near by. But the tens of thousands ob- 

 served were apparently confined to a district less than half a 



