xxxix] 



CTEHriS 



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



Fie. 624. Ctenis sp. Single pinna. (Manchester Museum, No. 53.' 



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

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



an early paper as probably a new species of Anthrophyopsis, 

 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. 



37—2 



