36 PROCEEDIXGS OF THE NATIONAL MUSEUM. vol. 6'. 



LIEULARIA MAGNA, new species. 



Plate 2, fig.s. 2, 3, and 5. 



Shell large for the group, trochiforai, originally mottled on the 

 prominences with dark and light articulation, with a small smooth 

 nucleus and about five whorls; suture distinct, very narrow; whorls 

 ver}' slightly convex; periphery rounded; spiral sculpture of (on the 

 last whorl behind the periphery four or five, and on the base as 

 many more) rather prominent threads with much wilder interspaces: 

 there is also more or less fine spiral striation; axial sculpture of 

 fine regular silky retractively oblique incremental lines; the spiral 

 threads, especially on the earlier whorls, are sometimes obscurely 

 beaded; the base is moderately convex with a small funicular um- 

 bilicus, axially striate: aperture rounded, oblique, the margins sim- 

 ple, with no internal lirae: height of shell, 10; of last whorl, 6: 

 maximum diameter, 8 mm. 



Typc.—Q^t No. 352410, U.S.N.M. 



There is some variation in the height of the specimens, some being 

 slightly more elevated than others in proportion to their diameter. 

 Tlie species is the largest of the group yet known. 



