CORALS FROM THE DEVONIAN FORMATION. 223 
individuals) slender, but little developed, not very unequal in size; some rudiments of 
smaller septa between the former. 
The specimens figured in this Monograph (tab. xhix, fig. 5) about 4 inches long, and 
about 13 mch wide. Professor M‘Coy justly remarks that the specimens described by 
Mr. Philips were young individuals, and mentions a gigantic specimen the diameter of 
which was 1 inch 9 lines. 
The specimens here described were found at Torquay and Plymouth, and belong to 
the collections of Dr. Battersby and Mr. Pengelly. The same species exists at Barton and 
South Petherwin, according to Mr. Phillips, and at Newton Bushel according to Professor 
M‘Coy. 
This species resembles very much Ampleaus Yandelli,, and A. cornubovis,’ but differs 
from both by the septa being less numerous and almost equal in size, and by the existence 
of 4 septal fossulee. Amplerus coralloides® differs also from A. tortuosus by not having the 
depressions on the tabulz, and by the circular wrinkles being larger. 
2. Genus Hawi, (p. lxvii.) 
Hauuia Pencetityr. ‘Tab. XLIX, figs. 6, 6a, 6. 
Hairta PencELiy1, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Pal., p.354,1851. 
The calice of this coral is almost circular, with 54 principal septa, which alternate with 
an equal number of small and thinner ones; the former are very thick, straight, and 
disposed in a regular radiate manner towards the circumference of the visceral chamber ; 
towards their inner edge they are provided with a large and thin paliform lobe. The 
cristiform septum is not as large as in Hallia insignis,’ and it is the lobes belonging to the 
principal septa situated near this that affect a pinnate mode of arrangement. ‘The dissepi- 
ments are very slender and closely set. Diameter 1 inch or more; the area occupied by 
the paliform lobes forms an ellipse of about 9 lines long and 6 lines broad. 
Found at Torquay, (Coll. of the Geological Society of London, and of Mr. Pengelly at 
Torquay). We are inclined to refer to this species some young corals from Pethervin, 
which are in a very bad state of preservation, and belong to the collection of the Geological 
Society. They have a strong epitheca. 
In Hallia Pengellyi the characters of the generic type are not as distinct as in 
H. insignis,’ the large septum being less developed, and the adjacent septa not assuming 
as regular a pinnate mode of arrangement ; it is also to be remarked that in HZ. caszgnis all 
the septa are provided with a very large paliform lobe. 
1 Milne Edwards and Jules Haime, Pol. Foss. des Terr. Paleeoz., p. 344. pl. iii, fig. 2, 1851. 
Ibid., p. 343, pl. ii, fig. 1. 
3 Tab. xxxvi, fig. 1. 
4 Milne Edwards and Jules Haime, Pol. Foss. des Terr. Palzeoz., p. 353, pl. vi, fig. 3, 1851. ° Ibid. 
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