280 Proceedings of the Royal Physical Society, 



before the bifurcations of each branch, the normal number 

 however appears to be five. The specimens, like those just 

 described, exhibit none of the true substance of the poly- 

 zoarium, but consist of mere casts in various states of pre- 

 servation. The fenestrules are very closely set and almost 

 round. The state of preservation does not permit of any 

 definite description being given. 



Log. and Horizon. — Identical with the preceding species 

 (Nos. 84, 112, and 130, etc.). 



CLASS BEACHIOPODA. 



Genus Spirifeea — J. Sowerhy. 

 S;pirifera glalra — Martin. 



Conch. (Anomites) glaber, Martin, Pet. Derb., 1809, t. 48, f. 9, 10. 

 Spirifera glabra, Davidson, Mon, Brit. Carb. Brachiopoda, pp. 59 and 264, 

 t. 11, f. 1-9, t. 12, f. 1-5, 11 and 12 {for general synonomy). 

 ,, ,, Etheridge, jun., Cat. Australian Foss., 1878, p. 56 {for 



Australian synonomy). 



Ohs. — I refer to this species a portion of a single specimen 

 of a ventral valve, showing the umbo, visceral region, area, 

 and part of the sinus. There are also traces of the broad 

 concentric laminae which make a prominent feature in the 

 Australian forms of this species. It is of frequent occurrence 

 in the Carboniferous rocks of this Continent. 



Loc. and Horizon. — Stonelumpy Creek, Bowen Eiver coal- 

 field (Marine Series, No. 164). 



Collector. — E. L. Jack, Esq. 



Spirifera convoluta — Phillips. — PI. VII., fig. 6. 



Spirifera convoluta, Phill., Geol. York., 1836, ii., p. 217, t. 9, f. 7. 



,, ,, Davidson, Mon. Brit. Carb. Brachiopoda, p. 35, t. 5, f. 



2-15 {for general synonomy). 

 ,, „ Etheridge, jun., Cat. Australian Foss., 1878, p. 55 {for 



Australian synonomy). 



Ohs. — A small cast in a friable micaceous sandstone appears 

 to possess all the chief characters of this species — elongated 

 hinge line, acute alar angles, and bifurcated ribs, which 

 gradually disappear on the wings. 



