PLEUROTOMARIA. 401 
Var. Ebrayana, d’Orbigny. Not figured. 
1854, Pieroromarta Eprayana, d’Orbigny. Terr. Jur., vol. ii, p. 483, pl. 
ecelxxxvil. 
We have only to imagine the typical Pl. elongata, Sow., sufficiently en- 
larged with a corresponding increase of smoothness in the anterior whorls, and 
we obtain these megalomorphs, which occur at Dundry and more especially in 
the Sauzei-bed at Combe and Oborne. 
Var. turrita, Deslongchamps. (Plate XXXIV, fig. 8.) 
1848. PLEUROTOMARIA MUTABILIS, var. TURRITA, Deslongchamps. Vol. cit., 
p- 115, pl. x, fig. 16. 
A narrow-angled and strongly turrited variety; the right lip almost vertical, 
and prolonged into a well-marked gutter or notch; ornaments of the basal rim 
large and richly cut; sinus-band inconspicuous. This very rare form occurs in 
the Parkinsoni-zone of Bradford Abbas and Woolston. It is interesting to note 
that with the narrow form we again see a well-developed columellar notch. 
Relations, &c., of Pl. elongata generally. Sufficient has been said as to 
relations under the head of “ Bibliography, &c.” Whilst narrow and peculiar 
forms occur, as we have seen, both in the lowest and highest beds of the Inferior 
Oolite, the typical Pl. elongata is especially characteristic of the Humphriesianus- 
zone. 
336. PLEGROTOMARIA ABBREVIATA, Sowerby, 1818 (= Pl. mutabilis, Deslongchamps, 
pars). Plate XXXIII, figs. 
8 and 9. 
1818. TRocHus aBBReviatTus, Sowerby. Min. Conch., pl. exciii, fig. 5. 
1854, PLEUROTOMARIA ABBREVIATA, Sowerby. Morris, Cat., p. 271. 
Syn. — MUTABILIS, Deslongchamps, vars. ABBREVIATA and CORRU- 
gata. Vol. cit., pp. 108, 109, pl. x, figs. 13 
and 18. 
Bibliography, §c.—Admitting that this is little more than a variety of the 
