SPHENOPTERIS. 155- 



a fairly close resemblance between this example and Brongniart's 

 figure * of a specimen of Sphenopteris denticulata from the Yorkshire 

 coast. 



The pinnules of this fragment arc smaller and rather more 

 delicate than those in 8250 (PI. XVII. Fig. 1). Labelled by 

 Bean S. Williamsonis. 



Gristhorpe Bay. Bean Coll. 



8250. PI. XVII. Fig. 1. 



A smaller piece than 39,281, but the ultimate segments are 

 much longer ; it agrees exactly with the figures of this species 

 given by Brongniart and by Lindlcy & Hutton. 



Part of a frond of Todites Williamsoni on the same piece of shale. 



Scarborough. 



13,499. Fragments similar to 8250, but very imperfect. 

 Compare this specimen with Phillips' figure of this species and 

 Williamson's drawing in the Fossil Ffara of Lindley & Hutton. 



Gristhorpc Bay. Presented by Dr. Murray. 



3. Sphenopteris Murrayana (Brongniart). 



[Hist. veg. foss. p. 358, pi. cxxvi. figs. 1, 2, and 4, 1828.] 

 (PL XXI. Fig. 5.) 



1828. Pecopteri* Murrayana, Brongniart, Hist. veg. foss. p. 358, pi. cxxvi. 



figs. 1, 2, and 4. 



1829. ^Sphenopteris arbwcula, Phillips, Geol. Yorks. lign. 36, p. 216. 



Type-specimen. ? Natural History Museum, Paris. 



Frond tripinnate ; pinna? broad and spreading, given off from 

 the rachis almost at right angles; ultimate segments crowded, 

 deltoid in form, and similar to those of Coniopteris hymenophylloidrs 

 (Brongn.). 



It has been pointed out in discussing Coniopteris hymenophylloides, 

 that in all probability some of the specimens included by Brongniart 

 and others under the name Pecopteris or Sphenopteris Murrayana 

 may belong to a distinct species, which we have referred to- 



1 Brongniart (28 2 ), pi. hi. fig. 1. 



