Vill 
ON RHAMPHORHYNCHUS BUCKLANDI, A PTERO- 
SAURIAN FROM THE STONESFIELD SLATE 
Quarterly Journal of the Geological Society, vol. xv., 1859, pp. 658-670. 
(Read March 23rd, 1859.) 
PLATE XXIV. [PLATE Io]. 
SINCE the description of the fossils belonging to this species of 
Pterosaurian which originally came into my possession, I have met 
with so much additional material, that I have thought it better com- 
pletely to remodel the present Memoir, than to add the subsequently 
acquired information in cumbrous notes. 
Some time ago, the Earl of Ducie was good enough to place in 
my hands, for description, a portion of a lower jaw, about 34 inches in 
length, which was obtained from a quarry known by the name of 
“Smith’s Quarry,” at Sarsden, near Chipping Norton, in Oxford- 
shire. Bones of Pterosaurians abound in this locality, associated 
with remains of Megalosaurus and of Oolitic fishes ; and Lord Ducie 
considers that the beds in which his fossil was discovered are the 
representative of the Stonesfield slate. In this conclusion, I find, my 
colleagues of the Geological Survey concur. 
The symphysial part of the lower jaw in question, and the whole 
of what remains of the right ramus, are extremely well preserved 
(Pl. XXIV [Plate 10] figs. 1a, 14); but the inferior part of the left 
ramus is broken away at a distance of about an inch behind the 
symphysis. The latter measures {ths of an inch in length, and 
exhibits no suture. Its posterior boundary is nearly a quarter of an. 
inch thick, and looks downwards as well as backwards. 
