36 PROCEEDINGS OF THE ACADEMY OF [Feb., 



upon the posterior fasciole and canal; intercostal areas broadly 

 convex and approximately equal in width to the costals; incre- 

 mental sculpture consisting of minute, over-lapping lamellae most 

 conspicuous upon the fasciole, and at the intersection with the 

 spirals. Primary spirals rather low, uniform, broadly arched 

 lirations, 3 or 4 in number on the penult and 14 to 16 upon the 

 ultima and canal; secondaries regularly intercalated; tertiaries 

 rarely. 



Aperture. — Aperture rather narrow, pyriform. Labrum arcuate, 

 sub-varicose during the development of the costals; outer edge 

 often minutely crenulated; inner transverse lirations analagous 

 to external secondaries. Labium gently excavated at the base 

 of the body, somewhat thickened but not plicate at the entrance 

 to the canal. Anterior canal rather long, slightly twisted, with 

 proximate margins and a shallow terminal notch. 



Umbilicus. — Umbilical chink almost or entirely concealed by 

 the parietal callous. 



Dimensions. — Altitude, 19.7 mm. Maximum diameter, 10.4 

 mm. Diameter at right angles to the maximum diameter, 9.5 

 mm. Dimensions of a less perfect individual: altitude, 23.3 mm. 

 Maximum diameter, 13.1 mm. Diameter at right angles to the 

 maximum diameter, 12.1 mm. 



Type Locality. — Natural Well, Duplin County, North Carolina. 

 Duplin Formation. 



Observations.- — Urosalpinx phriknos is remarkable among its 

 congeners for its relatively few but uniform and vigorous axial 

 costse. 



Distribution. — *S^. Mary's Formation. 3 miles southwest of 

 Frog Level, Pitt County. Wilson, Wilson County, North Caro- 

 lina. Duplin Formation. Natural Well, 1^ miles north of Mag- 

 nolia, Duplin County; 4 to 5 miles below Lumberton and 1\ miles 

 northeast of Fairmont, Robeson County, North Carolina. Muld- 

 row's Place, 5 miles southeast of Mayesville, Sumter County, 

 South Carolina. 



Collections. — U. S. National Museum. Johns Hopkins Uni- 

 versity. Academy of Natural Sciences of Philadelphia. 



Epitonium miildrowi new species. Plate II, flg 10. 



General Characters. — Outline slender, whorls enlarging but slowly. 

 Apex of spire broken away; remaining volutions 4^ in number, 

 convex, barely contiguous, very strongly constricted at the deeply 

 impressed sutures. 



