FROM THE TERTIARY OF VIRGINIA. 259 
Judging from description, this shell is not unlike the P. larvata, Con., from Claiborne, 
but that species is not mentioned as having three folds on the columella, or the teeth on 
the outer lip. 
P. ecaBorata, Pu. 36. Fic. 64, 
P. testd elevato-conicd, crassa, imperforatd, costatd, striata; spird minime ovatd, mamillatd; suturis linearibus, im- 
pressis; anfractibus sea, convexts; costis longitudinalibus, crebris, planis, levibus, politis; striis transversis, parvis; 
anfractu ultimo rotundato; apertura ellipticd; columella plicis tribus magnis. 
Shell elevately conical, thick, imperforate, costate, striate; spire slightly ovate, mamillate; sutures linear, im- 
pressed; whorls six, convex; coste longitudinal, numerous, flat, smooth, polished ; strie transverse, small; last whorl 
rounded; mouth elliptical; columella with three large folds. 
Length .15. Breadth .08 of an inch. 
Remarks.—The transverse strix are very small and do not cross the ribs. ‘The folds on 
the columella are of nearly equal size, but the upper one is rather larger than the others. 
As the only two specimens of this shell in my possession have had the lower whorl 
broken off, I am unable to give the full size or number of whorls, as well as to determine 
whether there are teeth on the outer lip or not. 
I have never seen a Pyramidella with a sculpture as elaborate as this. ‘The genus 
mostly contains plain species. 
FAMILY SCALARIDAL. 
GENUS SCALARIA. 
S. actcuna, Pu. 36. Fic. 65. 
S. testd turritd, crass, imperforatd, costatd; spird attenuatd, ad apicem vix levi; suturis profundis; anfractibus 
septem, valde convexis; costis longitudinalibus, lamellaribus, acutis, ad basim decrescentibus; anfractu ultimo rotun- 
dato; basi carind minima transversd; aperturd rotunda. 
Shell turrited, thick, imperforate, costate, spire attenuate, nearly smooth at the apex; sutures deep; whorls seven, 
very convex; cost longitudinal, lamellar, acute, decreasing at the base; last whorl rounded ; base with a very small 
transverse carina; mouth round. 
Length .20. Breadth .10 of an inch. 
Remarks.—The carina on the base is small and does not interfere with the ribs, which 
continue to the columella. ‘The whorls are perfectly smooth with the exception of the 
ribs, which, on the body whorl are fifteen in number. 
S. corNIGERA, Px. 36. Fic. 66. 
S. testd elevoto-conicd, scalariformi, imperforatd, crassiusculd, costatd; spird attenuata, obtusd, conicd; suturis vaide 
impressis; anfractibus sex, convexis, superne valde angulatis; costis sub-tenuibus, planis, superne valdé productis et 
acule angulatis; basi levi; aperturd rotundatd, minimeé effusd. 
Shell elevately conical, scalariform, imperforate, rather thick, costate; spire attenuate, obtuse, conical; sutures 
very much impressed; whorls six, convex, very angular above; coste rather thin, flat, very much produced and 
acutely angled above; base smooth; mouth round, slightly effuse. ‘ 
Length .16, Breadth .08 of an inch. 
