128 BRITISH FOSSIL CORALS. 



FamUy ASTREID^E, (p. xxui.) 

 Genus Axosmilia, (p. xxvi.) 



AxosMiLiA Wrighti. Tab. XXVII, fig. 6. 



Corallum simple, having the form of a very elongated cone, very narrow at its under 

 end, straight or but slightly curved, presenting circular accretion swellings, and covered 

 with an epitheca which appears to extend to the cahcular edge. Calice circular. Septa 

 forming four complete cycla ; straight, thin towards the centre of the calice, appearing to be 

 deHcately granulose laterally, unequal in size according to their relative age, and not closely 

 set. Height of the corallum about one inch. Diameter of the calice four or five lines. 



Found at Dundry and at Cheltenham, in the Trigonia beds, by Dr. Wright. 



It is not without much uncertainty that we refer this oolitic coral to our genus 

 Axosmilia, for in all the specimens which we have seen, the calice was so imbedded in the 

 stone, that we have not been able to observe its most essential characters, such as the 

 styliform columella ; by the form of the septa we may infer that their edge was entire, and 

 the calice deep, as in Axosmilia, which this fossil resembles also by its general aspect, more 

 than it does Montlivaltia ; but if the presumed characters do not in reahty exist, it may 

 belong to the latter genus. At all events A. Wrighti differs from Axosmilia extinctonim} 

 and from A. multiradiatc^ by the number of the septa, and the equal development of all 

 the septal systems, for in A. multiradiata there are five cycla, and in A. extinctorum only 

 three complete ones, and the septa of the fourth cyclum exist only in one half of each 

 system. 



Genus Stylina, (p. xxix.) 



Stylina solid a. (See page 105, and Tab. XXII, fig. 3.) 



This fossil, which is met with in the Inferior Oolite near Bath, is also found in 

 the Great Oolite, and has consequently been described in a preceding chapter of this 

 Monograph. 



^ CuryopliylUa extinctorum, Michelin. Iconogr., tab. ii, fig. 3a. 



2 Milne Edwards and J. Ilainie, Monogr. des Astreides, Ann. des Sc. Nat.,'s. 3, vol. x, p. 3G2. 



