110 

Case and 
Column of 
Drawers. 

Reference to McCoy’s 
Synopsis: and Figures of Genera. 

FC 
Gb6 
Gb2 
c2 by 
ao Q 


FC 
FC 
FC 
Gh2 

Palwopora, p. 14. 
p. 26. 


SILURIAN. 
Names and References; Observations, &c. 

Labechia conferta, Lonsdale (Milne Edwards, 
Brit. Foss. Cor. p. 269), Siluria, 2nd ed. pl. 
39, fig. 5. 
Labechia sp. Or var. of the above. 
Thecia, Milne Edwards. An expanded coral 
like Labechia, with cell-mouths, almost 
closed by the thick sector, which all but 
fills up the tube. In this respect it resem- 
bles the modern star-corals, and perhaps 
indicates a passage to them. The section 
is very solid, only two species are certainly 
known, One is common in our Wenlock 
rocks, 
Thecia Swindernana, Goldfuss. (Pet. Germ. 
pl. 38, fig. 3, Milne Edwards, t. 65, fig. 7). 
Variable in the size of cells. 
Thecia (Porites) expatiata, Lonsd. (Siluria, 
2nd ed. pl. 41, fig. 3). 
Thecia Grayana, (Milne Edwards, t. 65, fig. 8), 
with fewer septa. 
Thecia, species probably new. This form— 
separated by Mr Seeley in 1865, as pro- 
bably distinct—seems to differ chiefly in 
the crowded? calices, and the consequent 
depth of the cups. 
Thecia Grayana, var.? Lobed, almost palmate. 
Tabulate coral, with linear connecting ridges, 
? genus. 
Halysites (chain coral). It differs from all 
other tabulate corals by having the calices 
connected fully by their sides, on two edges 
only, so as to form linear rows, which inos- 
culate and form a reticulate pattern. The 
calices are oval, a rare circumstance, ex- 
cept in Alveolites before described. A sec- 
tion shews the tabule very close set; and 
there are no septa whatever or trace of 
them. 

Numbers and Localities. 
a. 297, Dudley, F.C. ; b. 701, 
Wenlock Edge, Woolhope. 
a, 298, Dudley, F. C. 
b.704, Dudley, F.C.; Wool- 
hope; b. 703, Wenlock. 
a. 403, Dudley, F.C. 
a. 302, Dudley, F.C. 
a. 303, Dudley, F. C. 
