4 PROCEEDINGS OF THE NATIONAL, MUSEUM vol. T4 



Z>imensio7is, —Tyi>e (Cat. No. 370828, U.S.N.M.), altitude, 83 

 mm. ; greatest diameter, 28 mm. 



Type locality. — U. S. G. S. station l/473a, Bellefield, Va., basal 

 bed. (W. C. Mansfield, collector.) 



The new species is related to Fusinics parilis (Conrad), a species in 

 the St. Marys formation, but Conrad's species is a stouter shell, 

 having a proportionally larger body whorl. The spirals, also, on the 

 St. Marys species are much stronger and the subsutural area is less 

 excavated and more coarsely spirally marked. 



Occw'rence. — Yorktown formation, zone 1, Grove Wharf (old 

 wharf), James River, Va., lowest bed exposed. (Collected by Dr. 

 Frank Burns, 1892, and by W. C. Mansrield, 1923.) 



PISANIA (CELATOCONUS) BURNSI, new species 



Plate 1, figures 1, 3 



Shell solid, elongate-ovate, body whorl about twice as long as 

 spire, consisting of about five whorls — apical whorls decorticated. 

 Sutural area moderately depressed, suture close-fitting, shallowly and 

 narrowly channeled. Sculpture of (on the body whorl, 23) seminod- 

 ulous, nearly flat, brown spiral bands separated by areas of about half 

 their width. Over the basal slope of the body whorl a spiral line 

 intercalates the bands. Growth lines overrun the spirals and inter- 

 spaces and give a faint reticulate ornamentation to the shell. Aper- 

 ture elongate-ovate. Margin of outer lip partly broken away; within 

 ornamented with about 11 lirae. Parietal wall and columella with 

 a wash of callus. Columella twisted, anteriorly ornamented with a 

 rather strong fold. Siphonal fasciole well developed, provided with 

 an elongated chink in front. 



Difnensions.— Type (Cat. No. 352437, U. S. N. M.) , altitude, 28 mm. ; 

 greatest diameter, 13 mm. ; length of aperture, 15 mm. 



Type locality. — U. S. G. S. station 3915, river front at Urbanna, 

 Va. (Frank Burns, collector, 1903.). 



The new species is related to Pisania nux Dall but is a heavier 

 shell, has a less reticulate sculpture ornamentation and a stronger 

 and better developed siphonal fasciole than Ball's species. The new 

 species is named after the collector, Dr. Frank Burns. 



Occiifr-rence. — St. Marys formation, zone 2, only known from type 

 locality. 



COLUMBELLA (SEMINELLA) SMITHFIELDENSIS, new species 



Plate 1, figures 6, 7 



Shell small, stout, rather fragile, spirally sculptured, having body 

 whorl longer than spire, consisting of li^ nuclear and three post- 



