18 
6. Pavosites Gothlandica, Fougt. 
Corallium gotMcindicum, Fougt, 1749, Linnaeus, Amoeu. Acad., I, p. lOG, pi. 4, fig. 27. 
Favosites gotlilcmdica, Lamarck, 1816, Hist. Aiiim. sans Vertebres, ii, p. 206. 
C cda)]lO])Orci gothlcindiGCl, G-oldf., 1829, Petref. Glerm., t. i, p. 78, pi. 26, fig. 3«, 3e {cwt. excl.') 
Fcivosites gotldandicci, Lonsdale, 1845, in Strzelecki’s Pbys. Descr. N. S. "Wales, p. 266. 
„ ,, Milne Edwards and J. Haime, 1852, Mon. Brit. Eoss. Corals, p. 256, 
pi. 60, fig. 1. 
Corallum a more or less rounded mass, sometimes elongated ; calices 
sub-equal, usually liexagonal. Tabulte almost liorizontal, equidistant. Mural 
pores surrounded by a small ridge, arranged in two rows along tlie face of 
eacli wall. Average diameter of the calices two and a half millimetres. 
Horizon and Localities, — This is one of the most common forms of 
the Silurian Tormation. It appears to occur in both Upper and Lower 
Silurian rocks. In Australia it is not uncommon in the quartzite of Burra- 
wang. M. de Strzelecki has collected specimens of it on the Yass Plains. 
-PBOPOBA, Milne Edwards and J Haime. 
Propoha tubulata, Lonsdale. 
Eorites iuhldata, Lonsdale, 1839, in Murchison’s Silurian System, p. 687, pi. 16, fig. 3. 
Astrospora tuhulata, A. d’Orbigny, 1850, Prodr. Pal., I, p. 50. 
E alwspora ,, McCoy, 1851, Brit. Pal. Boss., p. 18. 
Eropor'a ,, Milne Edwards and J. Haime, 1851, Polyp. Eoss. Terr. Pal., p. 224. 
j, 3 , Ictem, 1852, Mon. Brit. Eoss. Corals, p. 255, pi. 59, fig. 3. 
Heliolites tuhulatus, Salter, 1858, in Murchison’s Siluria, p. 534, pi. 39, fig. 3. 
This coral is usually an irregularly rounded mass, often gibbous and 
formed of colonies superimposed one upon the other. The calices are cir- 
cular with projecting margins slightly ridged by the septa, which are usually 
twelve in number. Tabulte close ; cmnenchyma abundant and vesicular. 
Horizon and Localities. — This species is found in the Upper Silurian 
beds of England, Gothland, and Bohemia. A very good, free, silicified 
specimen has been found on the banks of the Bell (Bell Biver). 
