117 
Formation and Localities. — It is found in Scotland with the two 
preceding species, and in New Soutli Wales at Burragood, on the Paterson. 
As the calice of this specimen is filled with a brownish compact lime- 
stone, I infer that the fossil Avas found in a similar bed, Avhich has probably 
not yet been examined, as I have not found traces of it on any other fossil. 
Gen us — C Y ATI! AXON I A, Mictielin. 
Cyatiiaxonia minuta, L. G. de Koninck. 
PI. V, Pig. 10. 
Corallnm forming a long slightly curved cone, the surface of which is 
ornamented with small longitudinal costm, crossed by rings of growth. It 
is circular in transverse section. The transverse section of tlie columella is 
oval. The epitheca is relatively thick. The septa, tAventy in numl)er, are 
each formed of tAvo lamellm, uniting at some distance from the Avail before 
reaching the columella, around which they radiate. The columella is holloAv, 
pierced throughout by a small canal, and is oval in section. 
Dimensions. — These measurements are approximate only, as the speci- 
men AA^as very imperfect. Length, from fourteen to fifteen millimetres ; 
diameter, from four to five millimetres. 
Distinguishing Characteristics. — This species differs from C. cornu, 
Michelin, its nearest neighbour, by the thickness of its epitheca, and by its 
external longitudinal costse. 
Formation and Locality . — A single specimen was found at Burragood. 
TUBULOSA. 
CLADOCHONUS, McCoy. 
Cladochonus tenuicollis, McCoy} 
PI. VII, Pig. 2. 
Cladochonus tenuicollis, McCoy, 1817, Ann. Mag. Kat. Hist,, XX, p. 227, pi. 11, fig. 8. 
The corallum consists of a series of corallites, resembling in shape an 
ordinary clay pipe, when isolated. The corallites are united near the bases 
' [tjWe Mem. Gcol. SuvTcy N. S. AA'^ales, Pal. A^, PL. 1, 1891, p. 30. Specimens have been found at several 
otlier places in llie Carboniferous area. — W.S.D.] 
