254 
GASTEROPODA OP THE INTERIOR OOLITE. 
of whorls in well-developed specimens from six to seven ; whorls short, almost flat, 
and with very little sutural impression. The body- whorl is sub-tumid, and consti- 
tutes about two-thirds of the whole length. Aperture oval, the longer diameter 
being about twice the shorter diameter. Fine spiral strise (similar to those on 
Bourguetia striata) may be noted on well-preserved specimens. 
Relations and Distribution. — This form differs from the type chiefly in its 
relatively longer spire and in its larger habit of growth. In the flatness of the 
whorls and in the extremely conical outline of the shell it more nearly resembles 
d’Archiac’s species than do the Minchinhampton specimens. 
Occurs rather abundantly at Lincoln in the so-called " Bastard-bed ” at the 
base of the Lincolnshire Limestone, where that series reposes on the Northampton 
Sand. The majority of the specimens are smaller than the one figured. 
Phasianella Leymeriei, d’Arch., is quoted by Morris, Lincolnshire Oolites 
(‘ Quart. Journ. Geol. Soc.,’ ix, 326), as occurring in the Upper Shelly Beds at 
Ponton. 
X 
I9I. “Phasianella” conoidea, sp. nov. Plate XIX, fig. 14 a. 
Description : 
Spiral angle .... 50°. 
Height of body- whorl to entire shell . .60:100. 
Length of figured specimen . . .20 mm. 
Shell stumpy, conical, solid. Whorls about six, smooth, sub-convex, and but 
slightly separated by the suture. The apex is sharp and the whorls increase under 
a regular angle. The body-whorl is large but not ventricose, and its height is 
only a little more than half the height of the entire shell. Aperture roundly oval. 
Relations and Distribution. — An apology is almost needed when one ventures 
to make a new species of “ Phasianella.''^ This form differs from the preceding in 
the increased relative height of the spire, which is so marked that we could 
scarcely place it under Ph. Leymeriei, even as a variety. The aperture also is much 
shorter and the body-whorl is more stumpy. It is more regularly conical than 
Pli. latiuscula, towards which it has affinities in the opposite direction. 
Rare in the Scarborough Limestone. A similar form in the Dogger has rather 
a wider spiral angle. 
id 
^ X'l (o 
