50 BRITISH FOSSIL CORALS. 
3. Parasmiuia Cyuinprica. ‘Tab. VIII, fig. 5. 
It is not without some hesitation that we inscribe this species in the list of our 
Parasmilia, for the specimen about to be described is extremely incomplete; but it does 
not present the specific characters of any other species, and although very nearly allied to 
P. elongata and P. Mantelli, it appears to differ from both in some esserftial points. The 
fragment here alluded to is deficient both m the basis and in the calice, but it appertamed 
to a tall, nearly cylindrical corallum, that was somewhat bent. The cost@ are almost equal, 
extremely thin, sublamellar, but not very prominent, subflexuous, very slightly granulated, 
and divided at short intervals by circles of small dissepiments, formed by rudiments of an 
exotheca. The intercostal furrows are broad, rather shallow, almost destitute of granula- 
tions, and presenting sometimes in the middle a small rudimentary costa. Columella well 
developed. Sepfa forming four complete cycla, not very closely set, somewhat flexuous, 
and slightly granulate ; those of the first and second cycla equally developed, and rather 
thick ; the tertiary ones smaller and thinner ; those of the fourth cyclum very small, although 
the costz corresponding to them are as large as those of the other cycla. Length, above 
two inches ; diameter, about six lines. 
This fossil much resembles the Parasmilia elongata found at Ciply, but differs from it 
by the unequal development of the septa belonging to the first two and to the last two 
cycla, a mode of structure which does not exist in P. elongata. It differs from P. centradis, 
P. Fittoni, and P. serpentina, by the delicacy and almost lamellar form of the costa, and 
bears greater resemblance to P. Mantelli and P. Gravesiana, from which it may, however, 
be easily distinguished by the breadth of its mtercostal furrows. 
The specimen here described belongs to the Paleontological collection of Mr. J. S. 
Bowerbank, and was found in the upper chalk at Norwich. Another fossil, which we 
consider as belonging to the same species, exists in the Poppelsdorf Museum at Bonn, and 
was found in the upper chalk at Darup, in Westphalia. 
4. Parasminia Fitront. Tab. IX, fig. 2, 2a, 26. 
Corallum. stout, adherent by a somewhat broad basis, immediately above which it in 
general becomes very narrow; elongate, much bent, and presenting at intervals circular 
‘constrictions. Coste broad, closely set, not very prominent, excepting near the basis, down 
to which they are quite distinct, rather unequal alternately, and covered with very numerous 
and small granulations. Ca/ice circular ; fossula large and rather shallow. Co/wmella well 
developed, but very slightly prominent, of a spongy structure, and terminated by a broad 
subpapillose surface. Sepfa forming four complete cycla, rather thin, straight, not very 
closely set, slightly exsert, and having but few granulations on their lateral surfaces. 
