THE NAUTILUS. 77 



gives "Eagle Island, Marhlehead ; House Island, Manchester; 

 Kettle Island, Cape Ann." It is also to be found on the mainland 

 at Manchester, Magnolia, Gloucester and Rockport. 



Prof. T. D. A. Cockerell, in a paper on " Helix hortensis in 

 America," * describes the following varieties from Magnolia : pallida 

 Ckll., " pale purplish or purplish-brown, without bands ;" quinque- 

 vittata Moq., " yellow with five bands ;" rufozonata Ckll., straw- 

 colored with red-brown bands, five in number ; also the varieties 

 subalbida, lutea and subglobosa. Later Prof. Cockerell, on the 

 " Variations of Helix hortensis at Rockport, Mass.," ' describes the 

 following varieties : sub glob o sa ; arenicola, "bands colorless, translu- 

 cent, 12345 ; " subalbida and lutea, the latter showing some fifteen 

 different band formulae including 00000, 12345, 123(45), (123)(45), 

 10345, 12045. The latter specimens were collected by Mr. G. H. 

 Clapp, who is quoted as follows : " The bandless or very faintly 

 banded forms were by far the most common. Typical shells were 

 scarce, even less plentiful than the transparent banded variety. On 

 rainy days the shells were out by the hundreds." 



The first locality north of Cape Ann from which this species is re- 

 corded is some of the outer islands of Casco Bay. Mrs. A. S. 

 Packard has kindly donated to the Boston Society of Natural His- 

 tory a large series of this species from the collection of the late Prof. 

 Packard. These were collected on Brown Cow Island, Casco Bay. 

 The olive-green variety (subgloboscf) predominates, grading insensibly 

 icto the yellow (lutea)', the banded forms represent about ten per 

 cent, while a corresponding number could be referred to the variety 

 arenicola. Rev. H. W. Winkley has found it on Inner Green Island, 

 and Mr. W. H. Weeks, Jr., on Cliff or Crotch Island. In a letter 

 from Mr. H. K. Morrell, he writes : " I was at Seguin two days this 

 week and the keeper, Capt. H. L. Spinney, happened to say that 

 Helix hortensis was found on Pumpkin Knob, on the east side of 

 Sheepscot Bay, and was abundant on Matinicus." Mr. Owen Bryant 

 found the five-banded form on Seal Rock, one of the Matinicus 

 Group. Mr. Arthur H. Norton also reported it from Seal Rock, and 

 has found it on Mosquito or Little Egg Rock, Muscongus Bay. I 

 have a specimen in my collection labeled " Spruce Head, Me." Mr. 



1 The NAUTILUS, III, p. 139, 1890. 

 a The NAUTILUS, XIII, p. 32, 1899. 



