34 OENITHOSAUEIA. 



Rhamphocephalus bucklandi (Meyer x ). 



Syn. Pterodactylus bucklandi, Meyer 2 . 



Rhamphorhynchus bucklandi, Huxley 3 . 

 Including : — Pterodactylus duncani, Owen 4 . 

 Pterodactylus kiddi, Owen 5 . 



The mandible figured by Huxley in the ' Quart. Journ. Geol. 

 Soc' vol. xv. pi. xxiv. fig. 2, may be regarded as the type. 



This species is larger than Rhamphorhynchus grandis, and has 

 more than five lower teeth, with the inferior border of the mandibular 

 ramus highly concave 6 . 



Since no characters have been adduced by which the specimens 

 named Pterodactylus duncani and P. kiddi can be distinguished from 

 the present species, they are provisionally included under this 

 heading, although one or other of them may be distinct. ~R. prest- 

 wichi, Seeley 7 , may apparently be identical either with the present 

 or following species. 



Hob. Europe (England). 



The following specimens are from the Lower Jurassic of Stonesfield, 

 Oxfordshire. Some doubtless belong to the present species, but 

 others may be specifically distinct; in the latter event one of the 

 names proposed by Owen might perhaps be adopted. 



40126. An imperfect humerus. Slightly smaller than the specimen 

 figured by Huxley in the ' Quart. Journ. Geol. Soc/ vol. xv. 

 pi. xxiv. fig. 7. Purchased. 



38016. A bone, which is probably the radius. Length 0,132. 



Purchased, 1862. 



R. 1030. Cast of the first phalangeal of the ulnar digit of the 



manus. The original is in the Oxford Museum, and is 



probably the specimen noticed in Phillips's ' Geology of 



Oxford,' p. 224, Length 0,135. . Purchased. 



It. 1029. Cast of the proximal extremity of a similar bone. Original 

 in the Oxford Museum. Purchased. 



40126 b. The first phalangeal of the ulnar digit of the manus. This 

 (Fig.) specimen is figured by Owen in his ' Mesozoic Eeptilia' 



1 Palseologica, p. 117 (1832). — Pterodactylus. 2 Loc. cit. 



3 Quart Journ. Geol. Soc. vol. xv. p. 058 (1859). 



4 Mesozoic Eeptilia (Men. Pal. Soc), pt. i. p. 11 (1874). 5 Loc. cit. 

 G See p. 000 of the memoir by Huxley above cited. 



Quart. Journ. Geol. Soc. vol. xxxvi. p. 27 (1880). 



