24 THE NAUTILUS. 



Greater diameter 20^, lesser 18, altitude 9 mm. Aperture 

 9X7 mm. Type. 



Greater diameter 20, lesser 18, altitude 10 mm. 



Greater diameter 18, lesser 17, altitude 10 mm. A very con- 

 vex shell. 



These shells, over 50 in number, were collected by the late 

 Herbert H. Smith at a place called "Buck Creek Cove" or 

 " No Business Cove," about 3 miles north of Anderson, Frank- 

 lin Co., Tenn., in 1906. Types No. 7101 of my collection, 

 paratypes in the collections of the Academy of Natural Sciences, 

 Philadelphia, and of Dr. Bryant Walker, Detroit, Mich. 



In shape, sculpture and markings, but particularly in the 

 perfectly smooth carina, this species stands out from all others of 

 the group; it is the most distinctly marked and richest in col- 

 oring of all of the Pyramidulas. 



P. CUMBERLANDIANA (Lea). PI. I, Figs. 1. Sewanee, Tenn. 



The original description and figure of this species, Trans. 

 Am. Phil. Soc., VIII, 229, pi. VI, fig. 61, are very good and 

 agree exactly with the shells found at Sewanee, Tenn., by 

 Bishop Elliott and later collectors. Lea's original locality was 

 "Cumberland Mountains, near Jasper, Tenn.," which is about 

 20 miles southeast of Sewanee. I have not seen the type but 

 if, as Dr. Binney says, the Sewanee shells are the same, both 

 Lea and Binney failed to note that the ribs become much stronger 

 on the carina giving a saw-tooth effect. 



Dr. Binney, Terr. Moll., II, p. 216, gives the size as "Di- 

 ameter three-fourths of an inch; axis one-fourth of an inch," or 

 about 19 X 7 mm. W. G. Binney, Manual, p. 258, says: 

 "Greater diameter 15, lesser 13 mm.; heights mm." Of 42 

 shells in my collection, over half of them from Sewanee, and 

 two labeled " E. Tenn. (Elliott-Bland)" from the Redfield 

 collection, the largest run from 16 to 17 mm. diameter. H. H. 

 Smith collected a few typical shells at Paint Rock, Jackson Co., 

 Ala. 



At Woodville, Jackson Co. , Ala. , Mr. H. E. Sargent found a 

 form of cumberlandiana with slightly weaker ribs above and be- 

 low and with the upper whorls less shouldered, but it is hardly 



