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. 



ACT^ONINA GLABRA, Phil. 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. 

 UTRICULUS Brown. 111. Foss. Con., p. 101, t. 47, fig. 30. 

 ACTEONINA GLABRA, D'Orb. 1850. Prod. Pale"ont., p. 264. 



A. Testa subcylindricd, apice obtmo, spirdparvd; anfractibus (5) angustis, subconvexis ; 

 anfractu ultimo cylindrico ; aperturd 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. 



ACTJEONINA TUMIDULA. Plate XV, fig. 14. 



A. Testa parvd, spird exsertiusculd ; anfractibus angustis, rotundatis, suturis depresses ; 

 anfractu ultimo subcylindrico ; aperturd 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 4| lines, transverse 

 diameter 3J lines. 



Locality. Near Scarborough. 



ANNELLIDA. 

 VERMICDLARIA NODUS, Phil. Plate XIV, figs. 8a, b. 



VEHMICCLARIA NODUS, Phil. 1835. Geol. of York., vol. i, p. 124, t. 9, fig. 34. 



V. Testa laevi, in spirant turbinatem convolutd, anfractibus (3) convexiusculis ; anfractu 

 ultimo ad basin convexo, et lined obsolctd submesd cincto. 



Shell smooth, forming an obtuse turbinated spire, with three volutions, which are 



