120 MOLLUSCA OF THE GREAT OOLITE OF YORKSHIRE. 
its identity with the Normandy species, which is from the Great Oolite of Ranville. It 
likewise occurs in the upper beds of the Inferior Oolite near Minchinhampton. Length 
21 lines, breadth 10 lines; the aperture is about three fifths of the entire length of 
the shell. 
Locality. Bath Oolite near Scarborough. 
ACTHONINA GLABRA, Pdi. sp. Plate XV, fig. 10. 
ACTEON GLABER, Phil. 1835. Geol. of York., vol. i, t. 9, fig. 31. 
— — Williamson. Geol. Trans., 2d Series, vol. v, p. 241. 
UrricuLus — Brown. Il. Foss. Con., p. 101, t. 47, fig. 30. 
ACTEONINA GLABRA, D’Orb. 1850. Prod. Paléont., p. 264. 
A. Testa subcylindrica, apice obtuso, spird parva ; anfractibus (5) angustis, subconvexis ; 
anfractu ultimo cylindrico ; apertura angustd, basi effusd. 
Shell subcylindrical, apex obtuse, spire small, whorls (5) narrow, rather convex ; last 
volution cylindrical; aperture rounded, and expanded beneath. 
The spire is very blunt and depressed, the volutions being very narrow, and without the 
slightest angularity. Length 8 lines, transverse diameter 4 lines. 
Locality. Great Oolite near Scarborough. In Gloucestershire it is only found in the 
Inferior Oolite. 
ACTE£ONINA TUMIDULA. Plate XV, fig. 14. 
A. Testé parvd, spird exsertiusculd ; anfractibus angustis, rotundatis, suturis depressis ; 
anfractu ultimo subcylindrico ; apertura elongato-ovatd. 
Shell small, spire depressed, volutions very narrow, rounded, their sutures deeply 
depressed ; the last whorl gibbous ; aperture an elongated oval. 
This species is shorter than any other of the genus with which we are acquainted. The 
figure of the last whorl is only moderately cylindrical ; and the transverse diameter of this 
portion is not much less than the entire length of the shell. Length 43 lines, transverse 
diameter 33 lines. 
Locality. Near Scarborough. 
ANNELLIDA. 
VermicuLaria Novus, Phil. Plate XIV, figs. 8a, 6. 
VERMICULARIA NoDUS, Phil. 1835. Geol. of York., vol. i, p. 124, t. 9, fig. 34. 
V. Testa levi, in spiram turbinatem convolutd, anfractibus (3) convexiusculis ; anfractu 
ultimo ad basin conveao, et lined obsoletd submesd cincto. 
Shell smooth, forming an obtuse turbinated spire, with three volutions, which are 
