

REPTILIA 



CLASS III 



vertical Probably four sacrals, and at least thirty caudals present, some of 

 the latter with chevron bones. Scapula and coracoid fused. First digit of 

 mantis represented by a styliform ("pteroid") bone, and first wing phalanx 

 shorter than the antebrachium. Ischium large, distally expanded, lhe first 

 four clawed dibits of the pes are normal, and the fifth divaricated ; the latter 

 with an attenuated metatarsal and two phalanges. The skull of D. macronyx, 



ms^** 



sskPHIP*' 



Fir,. 35S. 



Wiwnvphorhynchus gemmingi, v. Meyer. Lithographic Stone; Eichstadt, Bavaria. A, Orbit; D, Antorbital 

 vacuity ; N, External narial opening ; pmx, Premaxilla ; r, Rib ; S, Lateral temporal vacuity ; S', Supratemporal 

 vacuity ; st, Sternum. 



Owen, the only described species, attains a length of 20 cm. Lower Lias; 

 Dorsetshire. 



Dorygnathus, Oppel. Upper Lias ; Wiirtemberg and Franconia. Rhamplio- 

 cephalus, Seeley. Bathonian ; Stonesfield, England. Imperfectly known genera. 



Campylognathus, Plien. Known by a complete skeleton from the Upper 

 Lias of Holzmaden, Wiirtemberg. Skull less deep than in Dimorphodon, 

 toothed to the extremity of the jaws; the anterior tooth above and the first 

 two below large and recurved. Mandibular rami toothed nearly to the 

 extremity, which is deflected downward. Narial opening larger than the 



