BY THE REV. J. E. TENISON-WOODS, F.G.S., F.L.S. 127 



which was referred doubtfully to Cyclopteris by the Professor in 

 1847 (See Ann. Nat. Hist, 1. c.) from the Newcastle beds is claimed 

 for this genus, described with some from Bacchus Marsh in 

 Victoria as follows : 



Gangamopteris angustifolia, M'Coy, (Pal. Yict. loc. cit., also 

 Ann. Nat. Hist., loc. cit., pi. 19, fig. 3 and 3a). Very long, narrow, 

 unequal sided, very gradually tapering towards the apex from the 

 widest portion near the base, base slightly contracted, embracing 

 and obliquely truncated, length often nine or ten inches, width 

 rarely exceeding one inch. 



From the upper coal measures, New South Wales, and the 

 Bacchus Marsh sandstones, Victoria, where it is common. In the 

 Indian Talchir group and Kaharbari beds. 



Gangamopteris spathulata, M'Coy (1. c, p. 12, pi. 13, fig. 1, 1a). 

 Spathulate, symmetrical, equal sided, semi-elliptical ly pointed 

 above, tapering towards the base to a slender petiole, length 4|- 

 inches, width about 1 J to 2 inches. This is the rarest of the three 

 forms in the Bacchus Marsh sandstones. 



Gangamopteris obliqua, M'Coy (1. c, p. 13, pi, 12, fig. 2, 3, 4,). 

 Wide, inequilateral, oblique, sub-trigonal, widest near the broadly 

 rounded distal end, gradually tapering towards the base, which is 

 not petiolate, but obliquely truncated, with a moderately wide, 

 sessile base of attachment. Length commonly about four or five 

 inches, width near apex about three and a half inches, width near 

 base, commonly about nine lines. 



" This is the most variable and common of the three forms, 

 abundant in the sandstone quarries of Bacchus Marsh." Both the 

 above have representatives in the Indian Talchir divisions 

 (Feistmantel), and they are found at Guntawang, Mudgee, New 

 South Wales. 



Gangamopteris clarkeana, Feist. (1. c, p. 93, pi. 15, fig. 9). Frond 

 spathulately rounded, of medium size, coriaceous, entire, symmetrical, 

 rounded above but greatly attenuated towards the base, whence 

 the somewhat thick and distant veins radiate, forking and forming 

 an oblonor network. 



