CORALS FROM THE INFERIOR OOLITE. 131 
3. Monriivattia Stutcnsuryl. Tab. XXVII, figs. 3, 3a, and 5. 
Corallum turbinate, rather tall, subpedicellate, straight, or slightly bent. Zpctheca very 
thick, reaching almost to the calicular margin, and presenting very strong transverse 
wrinkles or folds. Ca/ice circular. Columella rudimentary. Septa rather thick, straight, 
of unequal size, and forming four complete cycla. Height of one of the specimens here 
described, one inch; the other, although broken at both ends, is larger, and was probably 
nearly two inches long. Diameter of its calice, twelve lines. 
These fossils belong to the Bristol Museum, and are entered in the catalogue of that 
establishment as having been found at Nunney, near Frome. 
In most species of this genus the septa are much more numerous than in this species. 
In IL. detritd and WM. inequalis,’ which have also only four cycla, the basis of the corallum 
is broadly adherent, and the septa are very thick: in JZ. sfriatulata’ the basis is also 
widely adherent, and the septa are very thin : JZ. sycodes* resembles it most, but its epitheca 
does not extend so high up, and the septal systems are unequally developed. In two other 
species IL, lens’ and JM. depressa,® where the fifth cyclum exists, the septa belonging to it 
are sometimes rudimentary; but the discoidal form of these corals distinguishes them at 
first sight from AZ. Stutchburyi. 
4, Monttivattia Wricutr.. Tab. XXVI, figs. 12, 12a. 
The unique specimen of this species is in a very bad state of preservation, and has 
completely lost its epitheca, but is remarkable by its general form ; it is regularly turbinate, 
and almost twice as broad as it is high. Ca/ice almost circular ; fossula appearing to be 
somewhat oblong. Sepfa about seventy in number, well developed, but unequal in size 
alternately ; straight and thick, especially towards the wall; no appearance of any rudi- 
mentary septa between the large preceding ones. Height of the corallum one inch; 
diameter of the calice two inches. 
We found this fossil in the Inferior Oolite at Crickley, near Cheltenham; and have 
placed it in the collection of the Paris Museum. We dedicate the species to Dr. Wright, 
of Cheltenham, who has kindly communicated to us some interesting fossils from that 
locality. 
M. Wrighti differs from most Montlivaltie by its general form ; it much resembles 
1 Anthophyllum detritum, Michelin, Ieonogr., tab. x, fig. 1. 
is) 
Anthophyllum inequale, Michelin, Iconogr., tab. |, fig. - 
Caryophyllia striatulata, Michelin, Iconogr., tab. 1, fig. 9. 
- 
Milne Edwards and J. Haime, op. cit., vol. x, p. 299. 
SPab. xxvi,, fig: 7. 6 Tab.-xxix, fig. 9. 
