86 THE NAUTILUS. 



Var. albida so named by my friend Mr. B. H. Wright, I wish to 

 offer a little further explanation, that Mr. AVright nor I have ever 

 found typical B. Dormani associated with spotless Bulimuli would 

 weigh nothing against Mr. Simpson's having found them near the 

 Manatee River. I hope in the not far distant future to visit that re- 

 gion and see for myself, but at the same time Mr. Simpson never 

 having found the light colored var. entirely remote from any typi- 

 cal Dormani would not prove anything against there being a local- 

 ity near Lake Helen where they are to be found at least 10 or 12 

 miles from a single specimen of well marked B. Dormani, and that 

 there is such a locality I am very positive. I think they were first 

 found about three years ago by my son Oscar B. Webster and 

 myself. 



They are to be found in a small hammock of probably less than 

 200 acres, so isolated from any other hammock as to render com- 

 munication with any other Bulimuli quite improbable. My own 

 theory with regard to them is that having had a common origin 

 with the B. Dormani in other parts of Florida, they have been so 

 long separated from the typical form, hundreds, perhaps, thousands 

 of years, that some peculiarity of food or situation has finally devel- 

 oped a type of very transparent, light colored and nearly spotless 

 shells. These characteristics have become so constant that I have 

 never seen a single example of them that I should consider a good 

 representative of B. Dormani. There may be other localities where 

 a type of similar shells, all so nearly alike, may be found but I shall 

 be surprised if any such is ever found. That the same type is to be 

 found in other localities along Avith typical B. Z)orma?ii wou Id be 

 very probable, but though we have spent many days and weeks 

 looking for Bulimuli among the hammocks of the St. John's River 

 and along the East Coast of Florida for nearly 250 miles, we have 

 never yet met with any such shells. The only white B. Dormani 

 we have found among the typical have been such as have evidently 

 become faded on account of age. 



Nearly two years ago I sent Prof W. H. Dall three specimens of 

 albida of which he wrote in reply, " Those Bxdimxdi without spots 

 are just lovely." W. G. Binney wrote me Sept. 3, 1889, with re- 

 gard to some of the albida that I had sent him, "The Bal. Dormani 

 in yours of Aug 29, are much more interesting to me for their long 

 narrowed form, than even for their marking. I hope some day to 

 figure them." Two years ago when I first showed some of them to 



