4.20 GASTEROPODA OF THE INFERIOR OOLITE. 
A specimen in my collection answering well to the description and figures, as 
quoted above, has a height of 80 mm. and a spiral angle of 50°. The shell is 
acutely conical, and scarcely umbilicated. The whorls are subconvex to flat, but 
well marked off by the suture. The body-whorl is angular at the basal periphery, 
and the base nearly flat. In the early whorls the ornaments are finely reticulate, 
becoming smooth in the adult stage. Sinus-band quite median, broad and very 
flat in the later whorls. 
One specimen from the Parkinsoni-zone of Burton Bradstock. 
360. Pieuroromaria suBrasciata, d’Orbigny, 1850. Plate XLIV, fig. 10. 
1850. PrievRoTomMaria suBFascraTa, d’Orbigny. Prod., i, p. 269. 
1854. — — _— Terr. Jur., vol. u, p. 500, 
pl. ecexeiv, figs. 1—3. 
Syn. — FASCIATA, var. CRENATA, Deslongchamps. Vol. cit., p. 53, 
pl. vi, fig. 1. 
This is so well marked a form as to present little difficulty in identification. A 
specimen, believed to have come from the Humphriesianus-zone of the neighbour- 
hood of Sherborne, has a height of 75 mm. and a spiral angle of 62°. It differs 
from Normandy specimens, as described, in having no umbilicus. Pl. subfasciata 
(crenata is more descriptive) helps to connect the Fasciatz with the still more 
numerous section of the Ornate. 
361. PLevroromaria PHyosprIRA, d’Orbigny, 1850. Not figured. 
gn g 
1850. Pxirvroromarta pHyospira, d’Orbigny. Prod., i, p. 269. 
1854. — — — Terry sur vole) a, py 002, 
pl. ecexev. 
Syn. — FASCIATA, var. PHYOSPIRA, Deslongchamps. Vol. cit., p. 58, 
pl. v, fig. 4. 
A large but somewhat imperfect specimen, nearly 100 mm. in height, from the 
Humphriesianus-zone of the neighbourhood of Sherborne may, without doubt, be 
referred to this very characteristic form. Mr. Wilson has also found this species 
in the Iron-shot Oolite of Dundry. The shell is conical and subturrited, the 
earlier whorls being angular and carinated, with nodular ornaments on the carine ; 
the lower whorls are smooth and tumid, and in harmony with the gyrocycloid 
forms of the Fasciate. This species constitutes another link between the Fasciatez 
and the Ornate. 
