110 THE NAUTILUS. 



regular. 1 When one is once familiar with the species it is easily rec- 

 ognized. There is no doubt that specimens are in various collections 

 as, and mixed with, armifera, and all such lots should be revised. 



Specimens, as "Pupa armifera" were received in 1886-92 from 

 the late Mrs. Geo. Andrews, collected at Knoxville, Tenn., at vari- ' 

 ous places, marked: "Garden," "The Thicket," " under stones," 

 aggregating 58 armifera, 51 clappi. In a lot of 32 from drift on 

 the Duck river, Columbia, Tenn., sent by Prof. B. Shimek in 1892, 

 18 were armifera and 14 clappi; 5 specimens, of the latter only, 

 from " Columbia, Tenn.," were received from Mr. A. A. Hinkley in 

 1887. Lately Mr. Geo. H. Clapp was kind enough to send^ me all 

 his armifera for inspection; among them was a lot from " Eastern 

 Tennessee," all clappi; one from Gurley, Ala., the same; and one 

 from Huntsville, Ala., with 36 armifera and 1 clappi. The latter 

 two were collected by Mr. Herbert H. Smith. Mr. Bryant Walker 

 also kindly sent me his whole armifera material, 37 lots. Among 

 them were clappi from Fayetteville, Tenn., and Huntsville, Ala., 

 and, much to my surprise, from Grand Rapids, Mich. Also in a lot 

 from " Ottawa, 111.,"? which I owe to Mr. F. C. Baker, both species 

 were represented. It seems then that the distribution of B. clappi 

 is not only southeastern, as had been supposed, and it may be found 

 in other parts of the country also. 



I take pleasure in naming the species in honor of Mr. Geo. H. 

 Clapp. 



STRANGE SHELLS. One specimen : Umbilicate, cylindrical-tur- 

 riculate; whorls 6, moderately convex, the last occupying nearly 

 one-half of the altitude; aperture higher than wide, somewhat like 

 that of Gionetta lubrica except for the columellar part; peristome 

 straight, thin and sharp; no trace of lamellae and plica?; colorless to 

 pale horn; shell thin, translucent; surface with fine, irregular striee; 

 alt. 4, diam. 2 mm.; aperture alt. 1.5, diam. 1 mm.; umbilicus round, 

 of about 0.5 mm. diam., and pervious into the preceding whorls. 

 From Rose Hill, near Buffalo, N. Y., collected and sent by Miss 

 E. L. Letson in a lot of Bijii. armifera Say, var. What is it? If 

 it came from a foreign country, or even from some unexplored part 

 of our own continent, one might be tempted to regard it is represent- 

 ing a n. sp., and even a new genus. But in all probability it is a 

 freak, or monstrous specimen of Bifid, armifera. This had been 

 written when I received, from Mr. Clapp, a somewhat corresponding 



