EXPLANATION OF THE PLATES. 87 
Pal. Soc. Brit. Dey. Brach., pp. 126, 127. In Siluria, 4th ed. (Table, 
p- 405), it is included as a characteristic fossil of the Lower Devonian. 
In Ireland it has been found in Carboniferous slate and grit at several 
places near Bandon, Belgooly, &e., in the county of Cork. Mus. G.S. I. 
Fic. 4.—a, 6. HELIoLITES Porosa, Groldfuss, sp. 
Astrea, Petr. Ger., vol. i., p. 64. Heliolites, Brit. Foss. Cor., p. 212, 
pl. xlvii., fig. 1, a-f. 
a. Original. ‘Transverse section of a portion of this coral. 
b. Original. Part of the same, enlarged, showing arrangement of calices and 
septa, and intermediate cellular structure, or cenenchyma. Middle De- 
vonian, Torquay. Mus. G. S. I. 
Mippie Dervontan.—Localities : Torquay ; Babbacombe; Newton; Ply- 
mouth. Cat. Brit. Foss., p. 56. 
Fic. 5. FAVOSITES POLYMORPHA, Goldfuss, sp. 
Calamopora, Petr. Ger., vol. i., p.79. Favosites, Phil. Pal. Foss., p. 15, 
pl. viil., fig. 20. 
F. cervicornis, dubia. Brit. Foss. Cor., p. 216, pl. xlviii., fig. 2. 
Original. Upper portion of branch. Middle Devonian, Newton Bushel. 
Moiss'G.. S: I. 
Mippie Drvontan.— One of the most frequent ofall the Devonian corals.” 
Pal. Foss., p. 15. Localities: Combe Martin; Plymouth; Torquay ; 
Ogwell, S. Devon. Cat. Brit. Foss., p. 54. It has also been collected, 
by the late Mr. Jukes, from near Doddington, and at Asholt Common, 
Quantock Hills. Mus. G. S. I. 
Fic. 6.—a, b. CyATHOPHYLLUM CassrirosuM, Goldfuss. 
Petr. Ger., vol. i., p. 60. Brit. Foss. Cor., p. 229, pl. li., fig. 2. 
a. Original. Portion of branch. 06. Original. Transverse section of a cor- 
allite. Middle Devonian, Plymouth. Mus. G.S. I. 
Mrippvie Devontan.—Localities: Combe Martin; Hagginton; and Hills- 
borough, near Ilfracombe, North Devon; Torquay ; Newton; and Ply- 
mouth, South Devon. Pal. Foss., p. 9. 
Fig. 7.—a, b, ACERVULARIA PENTAGONA, Goldfuss, sp. 
Cyathophylium, Petr. Germ., vol. 1., p. 60. Acervularia, Brit. Foss. Cor., 
2o8: 
a. From Brit. Foss. Cor., pl. lii., fig. 5a. 0b. Transverse section ofa single 
corallite. Middle Devonian, Ogwell, Devonshire. 
MippLe Devontan.—Localities : Torquay ; Babbacombe ; Plymouth; and 
Newton Bushel, South Devon. Pal. Foss., p. 12. 
