80 BRITISH PALALOZOIC FOSSILS. [Zoopnyra, 
This beautiful coral is distinguished from the D. explicita (Mich.) from the Devonian beds of Boulogne- 
sur-Mer, by its smaller size and larger cells. Michelin, in his Iconographie Zoophytologique, founds 
this genus for the last-named coral, and approximates it to the genera Oriserpia and Aulopora; the 
twelve sulci which I observe to the margin of the cells in this species, however, shew that this cannot 
be the true affinity of the group, which must now rather be placed in the Madreporacea, characterised 
by that number, although the general characters of the coral and budding resemble Seriatopora. The minute 
porosity also agrees with this view. This species is erected into the genus Rhabdopora, by MM. Edwards 
and Haime, and distinguished from Dendropora by the granulation of the intercellular spaces; as this, 
however, is extremely minute, it may easily have escaped M. Michelin, in his species in which he overlooked 
the lamellar notches. 
Position and Locality—I. have examined several specimens on a piece of carboniferous limestone of 
Derbyshire. 
Explanation of Figures —PI|. 3. B. Fig. 11. Several portions on a bit of limestone, natural size, 
from Derbyshire.—Fig. 11 a. Ditto, a portion magnified six diameters, to shew the twelve tubercular sulci 
of the cells, and the obscure porosity and striation of the exterior. 
3rd Tribe. MADREPHYLLACEA. See page 18. 
Ist Family. MILLEPORID. See page 18. 
2nd Subfamily, FAVOSITINA. See page 19. 
Genus. FAVOSITES. See page 19. 
Favosires GoTHLANDICA (Grold.) See page 20. 
On the most careful examination I find it impossible to distinguish this species, as found in the 
carboniferous rocks, from Eifel or Silurian examples, on comparison of several well preserved specimens. I 
first published the species as carboniferous, several years ago, in my volume on the Fossils of the Car- 
boniferous Series of Ireland, from a single specimen, on the locality of which some doubt was thrown. I am 
now, however, able to confirm my original observations, 
Position and Locality——Abundant in some parts of the carboniferous limestone of Derbyshire. A doubtful 
specimen in the carboniferous shale of the Isle of Man. 
Genus. MICHELINEA (Xon.) 
Ref—Anim. Foss. Bel. p. 30. 
Gen. Char.—Corallum compound, forming rounded, depressed, or conoidal masses, of inseparably united, 
thick-walled polygonal tubes of large size, marked internally with numerous vertical lamellar stricee, and com- 
municating pores ; base of the cells filled up by very irregular, numerous, highly inclined vesicular plates, 
not forming distinct horizontal diaphragms; external or basal epitheca of the general mass, strong, con- 
centrically wrinkled, and sometimes spinose. 
This genus differs from /'avosites, in its inseparably united cell-tubes, from Chatetes by its communi- 
cating pores, and from both genera by the numerous vesicular plates filling up the tubes instead of regular 
distinct transverse diaphragms, and in the great comparative size of the cell-tubes. 
MICHELINEA GLOMERATA (M/°Coy). Pl. 3. B. fig. 14. 
Ref—M°Coy, Ann. Nat. Hist. 2nd Series, Vol. III. p. 122. 
Sp. Ch.—Cells polygonal, irregularly aggregated, so as to open on every side of the large amorphous 
masses formed by its irregular mode of growth; cells averaging two lines in diameter, internal vesicular 
plates very irregular, much curved, and yariously inclined. 
. 
