120 
Gentre of tlic brandies, from wlienco they extend obliquely toivards the sur- 
face. The caliees are small and nearly circular. The walls are thick, and 
pierced by a large number of irregularly placed mural pores, some of which 
are on the angles, and some on the sides, of the walls. The tabulae, which 
have been carefully described by Dana, are rather close together and 
regularly spaced. 
Dimensions, — This coral appears to have reached a considerable length. 
One specimen found by Mr. W. B. Clarke, although broken at both ends, 
measures seven centimetres long, and that figured by Lonsdale is ten centi- 
metres long. The diameter of the branches of the first is only from three to 
ten millimetres, while that of the second is fifteen millimetres. 
Distinguishing Characteristics.- — This species, in its general form, 
resembles certain specimens of Chcctetes tumicla, Phillips, from Glasgow, 
which Mr. B. Etheridge, Junr., has recently described.^ The observations of 
the learned Palaiontologist of Edinburgh have shown me that Favosites ovata 
differs from this Chcctetes by having mural pores, and by the diameter of its 
corallites being greater. Also that this species is entirely different from that, 
which I have described under the name Monticulipora tuniida, as I shall bo 
able to prove further on.- 
Formation and Localities. — Strzeleckf found this sj)ecies at Mounts 
"Wellington and Dromedary, and in the Norfolk Plains, Tasmania; Dana 
found it at Harper’s Hill, and Mr. Clarke at Glen William, in a blackish 
limestone, and in a greyish limestone at Burragood, N. S. Wales. McCoy 
says it is common in the sandstone at Darlington, New South Wales. 
' Ann. Mag. Nat. Ilist., xxiii (4), p. 194. 
^ It should be noted that the type species described by J. Phillips and re-examined by K. Etheridge comes 
from the upper beds of the Carboniferous Limestone, -while that figured by me belongs to the lower beds of this 
same limestone. 
