Zoopuyra.] LOWER PALALOZOIC RADIATA. 21 
phragms flat, about three in the space of one diameter; external walls as exposed in rough vertical fracture, 
slightly roughened by small transverse wrinkles, which obscurely crenulate the edges, sides with one or 
two rows of large round communicating pores. 
I agree with Mr Lonsdale in thinking that the Fuvosites basaltica (Gold. sp.) characterized by having 
but one row of pores on each face of the tubes, should be viewed as only a variety of this species, as I 
think I have seen from one to three rows in portions of a single mass. 
Specimens from Gerolstein, in the Eifel, seemed to agree (on the most careful comparison of good 
specimens) perfectly with the Silurian ones from Wenlock, and the carboniferous ones from Derbyshire. 
The great number of the young tubes gives a peculiar irregularity of aspect to the surface of this species. 
Position and Locality —Common in the Wenlock limestone of Dudley, Staffordshire ; and near Wen- 
lock, Shropshire; Golu Goed, Mandinam, Caermarthenshire ; Ledbury, Herefordshire ; limestone near Old 
Radnor, Presteigne, Radnorshire. 
Favosites? ocunata (Gold. Sp.) 
Ref. and Syn.—Ceriopora oculata. Gold. Pet. Germ. t. 65. f.14. Millepora repens. Lonsd. Sil. Syst. 
t. 15. f. 30, (not of Hisinger.) 
Sp. Ch.—Corallum forming dense, cylindrical branches about a line in diameter, and bifurcating at lengths 
of three or four lines; openings of the cell-tubes very large, circular (about four or five in half the cireum- 
ference) arranged in longitudinally spiral lines, their lower margins very prominent, inner and upper margins 
undefined; walls very thick; cells about their diameter apart, measured in vertical lines (three to four 
in one line) or half their diameter apart, measured transversely (five in one line); tubes penetrating the 
branches very obliquely ; transverse diaphragms far apart, connecting foramina few, distant, very large. 
The abundance and compactness of the apparent ccenenchyme, as well as the regular linear arrangement 
of the large round cell-tubes, when worn smooth, gives this coral almost exactly the appearance of Seria- 
topora, but there is no trace of radiating lamellee, nor central style, and I have also noticed the large few 
connecting pores as in the /. spongites: both these species agree in the great thickness of the walls of the 
tubes resembling ccenenchyme, and the obliquity of the opening of the tubes on the surface, their lower 
margins only being prominent; differing in these respects from the true Favosites; and if the circular form 
of the mouth was only a specific character, I should prefer including it with that fossil in the genus Cwnites 
of Eichwald, in the typical species of which I notice much of the same general character, compactness of 
structure, and oblique openings prominent only in the lower half. I think, as Kichwald suggests in his 
Urwelt Russlands, that the Millepora repens of Lonsdale, in the ‘Silurian System,” is not the coral so- 
called by Hisinger, to which he refers it, but that the latter is truly a Canites, probably identical with 
the so-called Limaria clathrata; the present coral being, however, obviously the Baltic species figured by 
Fougt in the Amcenitates Academicw of Linné. 
Position and Locality—Abundant in the Wenlock limestone, near Aymestry, Herefordshire. 
Genus. CCENITES (Zichw.) 1829. 
ef. and Syn.—Eichwald, Zoologia specialis. p. 179 = Limaria (Stein. ) 
Gen. Char.—Corallum simple or branched, cell-tubes vertical, or divaricating, oblique to the surface, open- 
ings irregular, prominent, triangular, quincuncially arranged, lower margin (or angle) most prominent, giving a 
file-like or squamose aspect to the surface, interstices very thick, compact, increasing by age and reducing the 
cavity of the cell-tubes; no trace of radiating lamellee, transverse diaphragms distinct ; communicating pores 
large, few. 
That the genus Canites of Kichwald is perfectly identical with Limaria of Steininger there can be no 
doubt; neither of these writers detected the internal structure, which I have found however to resemble Favosites 
in the transverse diaphragms to the tubes; both writers found the genus on the triangular form of the oblique 
openings of the cells, Steininger stating, that that is the only difference between it and his genus Tamnopora, 
