386 GASTEROPODA OF THE INFERIOR OOLITE. 
Trochus Burtonensis, Lye.,in the greater flatness of the base and the sharper 
angles of the basal periphery. Yet some of our Inferior Oolite specimens are 
scarcely distinguishable from real Bradford Clay fossils. As a mere collection 
name I suggest var. ‘‘ Hortonensis.” 
I notice this form from the Inferior Oolite of the Hook Norton district. In 
the Cotteswolds it is chiefly confined to the Parkinsoni-zone and is especially 
abundant at Horton Hill. 
325. P Trocuus Lecxensyi, Morris and Lycett, 1851. Plate XXXII, fig. 13. 
1851. ? Trocuts Leckensyt, Morris and Lycett. Great Ool. Moll., pt. 1, p. 115, 
pl. xv, fig. 21. 
1885. - — a Hudleston, Geol. Mag., dec. 3, 
vol. ii, p. 126, pl. iui, fig. 7. 
Bibliography, §c.—The authors appeared to have had a suspicion that this was 
a Plewrotomaria, although nothing upon the surface of the whorls indicated that 
such was the case. 
Description : 
Height : ‘ é ; » lo mm: 
Width : : : : =) Lymm. 
Spiral angle . ‘ : : oon 
Shell conical, imperforate. Spire regular and about half the entire height. 
Number of whorls five, nearly flat ; suture rather close. The ornaments consist 
of stout granulated spiral bands, those towards the base of each whorl having a 
slight prominence. 
The body-whorl shows a slight prominence at the basal periphery. Base nearly 
flat, with strong spirals decussated by radiating lines. Aperture trapezoidal and 
depressed. 
Relations and Distribution.—Probably a Plewrotomaria with the simus-band 
obscured. A single specimen from the Scarborough Limestone. 
326. Trocuus BiaRMAtTUS, Minster, 1844. Plate XXXII, fig. 14. 
1844. Trocuus Brarmarus, MZ. Goldf., Petref. Germ., pl. clxxx, fig. 2. 
1878. Lrrrormna prarmata, M Tawney, Dundry Gasteropoda, p. 24 (16). 
Cf. also Trocuvus Birorguatus, Héb. and Desi. Foss. Montreuil-Bellay, p. 61, 
pl. ii, fig. 6. 
