118 
of tlieir calices, and extended into a rather long and thiek pedicle. The 
insertion of the calices is alternate. The septa are indicated hy fine longi- 
tudinal stria3 on the internal wall of the calice. 
Dimensions. — Length of each corallite is from ten to eleven milli- 
metres, diameter of the calice from two to three millimetres. 
Distinguishing Characteristics. — This species can easily he distin- 
guished from C. Michelini, Milne Edwards and J. Haime, hy the thickness 
of its pedicle, and hy tlie regular alteruation of its calices. It differs from 
C. crassus, McCoy, hy the length of its pedicle. 
Formation and Localities. — Mr. McCoy tells us that this species is 
common in the Carhoniferous shales of Dunvegan ; Mr. W. B. Clarke found 
it at Burragood, in an argillaceous dull yellowish-grey limestone. 
TABULATA. 
SYBINGOPOBA, A, Goldfuss.'^ 
1. Syeingopora reticulata, a. Goldfuss. 
PL VII, Pig. 3. 
Sgringopora reticulata^ A. Goldfuss, 182G, Petref. Germ., I, p. 76, pi. 25, fig. 8. 
„ „ Milne Edwards and J. Ilaime, 1852, Mon. Brit. Boss. Corals, p. 
162, pi. 46, fig. 1. 
,, „ P. Eoemer, 1870, Geol. v. Ober-Sclileslen, p. 60, pi. 7, fig. 11. 
,, „ L. G. de Koninck, 1872, Nouv. Rech. Poss. Terr. Carb. Belg., 
p. 123, pi. 11, fig. 7, and pi. 12, fig. 1 (for synonymy). 
Corallites very long, generally rather straight, sometimes slightly 
flexuous ; feehly converging hut nearly parallel, distant from one another hy 
about the length of their diameter, surrounded hy a finely-wrinkled thick 
epitheca ; the tuhular connecting processes are numerous, regularly spaced 
at distances varying from two to four millimetres, according to the specimens. 
Dimensions. — This species often forms very large colonies, and its 
corallites have a mean diameter of one and a half millimetres. 
' [In connection with T)e Koninck’s figures of these two ppecies of Si/ringopora (PI. VII, fig. 3 and 4) Mr. R. 
Etheridge, junr., says “The figure of the first-named [5. reticulata] has Tcry much the appearance of an irregularly 
grown, openly fenestrate seen from tire reverse side. That of the second species closely resembles the 
impression of some of uur rrotoreteporcc.'’ Mem. Geol. Survey N. S. Wales, Pal. V, Pt. 1, p. 29. — W.S.D.] 
