BY JOHN SHIRLEY, B.SC. 91 



1. Pterophyllum Yerongense, Shirleij, sp. nov. (PI. vii, 

 figs, b and c.) 



Frond pinnate with a very broad striate rachis ; pinnules alternate, 

 elongate, equal (?), strap-shaped, margins parallel ; apex (?) ; base slightly 

 broader than remainder of pinnule, sinuses strongly curved upwards, attach- 

 ment horizontal by whole of base ; veins strongly marked, parallel, 16-22 in 

 each pinnule. 



It differs from P. abnorme Eth. jll. in the number and non- 

 furcation of the veins. It approaches P. Strahani, R. M. John- 

 ston PI. xxviii. fig. 1 and 1 (a), Geology of Tasmania, but this last 

 has very unequal pinnules. 



Under this name are placed Nos. 15 and 15 (a) of the fossils 

 from Yeronga exhibited in Case 64. 



2. Pterophyllum multilineatum, Shirlet/, sp. nov. 



Frond large, delicate, rachis less stout than in P. Yerongense ; pin- 

 nules large to J inch wide, strap-shaped, alternate, equal (?) ; apex 

 rounded ; marked by many fine parallel veins, to thirty in number ; 

 insertion of pinnules perpendicular on the rachis and attached by the 

 whole of the base, which is slightly widened at the upper angle of insertion ; 

 sinuses narrow, rounded. 



Approaches P. princeps (>. and M., but differs in possessing 

 equal pinnules, which are usually inserted alternately, while P. 

 princeps belongs to s. Anomozamites, Schimper. 



Under this name is placed No. 8, Case 64, Geological Survey 

 Department. 



