534 Annals of the Carnegie ■Museum. 



the Binney collection, now in the National Museum, is labeled 

 "Strontian Isl., and Cunninghams Isl., L. Erie" and under remarks 

 "Albino." Cunninghams is now known as Kelley's Island. 



All these shells from Strontian Island were undoubtedly distributed 

 by the late Dr. E. W. Hubbard, who lived for many years at Elyria, 

 O. I have them in the collection of Dr. Jas. Lewis, of Sanderson 

 Smith, and in part of Dr. Hubbard's collection, all from that source. 

 In the A. D. Brown Collection in the Academy of Natural Sciences of 

 Philadelphia, are four specimens, and Brown's label says: " E. W. H." 



2. Pyramidula solitaria roseo-apicata var. no v. 



On North Harbor Island a smaller and still more elevated race with 

 a pink apex w^as found. 



Shell small, elevated, very heavy, with the apical whorls pink. In 

 color they are generally darker than var. strontiana, some being almost 

 chestnut and others brownish straw-color, mottled with chestnut on 

 the upper whorls. Mature shells are mostly largely denuded, the 

 epidermis which remains being in ragged patches. The pittk apex is 

 a very marked character in this variety and this feature, together with 

 the darker color and smaller size, readily separates it from strontiana. 



This variety is particularly interesting in showing the gradual loss 

 of the bands. Of one hundred and nine shells collected by the writer 

 seven had two strong bands, fourteen had one or two weak bands and 

 eighty-eight were without bands. Sixty-seven fully mature, unbanded 

 shells were measured, with the following result: 



Diam. 22.55, All- 17-36 mm., Index, 76.98 average, 



" 76.48 largest, 



" 71.80 smallest and most depressed, 



" 83.33 most elevated, 



" 76.79 average of 7 banded, 



" 76.92 " " 74 shells. 



Variation in diam. of unbanded shells from 19.5 to 25.5 or 6.0 mm. 

 " alt. " " " " 14-0 " 19-5 " 5-5 " 



Sixty bandless shells varied in diam. from 20.5 to 24.5 or 4 mm. 



Sixty-four " alt. " iS-S " i9-0 " 3-5 " 



Type-locality North Harbor Island, Lake Erie, Ontario. Types 

 No. 7463 of my collection. Paratypes in collections of Bryant Walker, 

 Detroit, Michigan, and Calvin Goodrich, Toledo, Ohio. 



The dimensions given for solitaria by Binney in the Manual are 



