XXXIX] 



CTENIS 



579 



Anthrophyum) for some Rhaetic specimens from Scania, but as 

 they were subsequently found to be segments of a pinnate frond 

 he adopted the name Ctenis. An example in the Manchester 

 Museum 1 (fig. 624) from Yorkshire, mentioned by Nathorst in 



FIG. 624. Ctenis sp. Single pinna. (Manchester Museum, No. 53.) 



P 



FIG. 625. Ctenis sp. The epidermis of the pinna shown in fig. 624. A, surface- 

 view; p, papillae; s, stomata. B, side-view. (Manchester Museum, No. 53.) 



an early paper as probably a new species of Anthropliyopsis y 

 afforded good preparations of the cuticle (fig. 625) which revealed 

 the existence of circular elevations on the outer walls of the 

 epidermal cells: these may explain the nature of some at least 



1 Seward (00) p 21 ; (00) B. p. 232, figs. 42, 43. 



372 



