EEPTILIA. 



65 



No. 240. Placodus rostratus, Munst. 



Skull. In this species, the first two palatal teeth are relatively small ; all 

 the teeth are rounded ; the maxillary and premaxillary series are nearer each other 

 than in the P. gig as ; and the premaxillary bone is prolonged to a beak. 

 This specimen, from the Muschelkalk (Trias) in Bayreuth, Bavaria, is in the Bri- 

 tish Museum. Size, 8x7.- Price, $1.75. 



Pterosaurians, 



No. 241. Pterodactylus crassirostris, Goldf. 



Skeleton on slab. 

 The Pterodactyle was 

 one' of the most extra- 

 ordinary of all the 

 creatures yet discover- 

 ed in the ruins of a 

 primeval world. Col- 

 lini, in 1784, was the 

 first to investigate the 

 characters of this 

 strange animal ; he con- 

 sidered it a Fish. Blu- 

 m e n b a c h decided it 

 was a Bird ; Sommer- 

 ing, a Mammal ; Spix, 

 that it was intermedi- 

 ate between Monkeys 

 and Bats ; Macleay, a „ 

 link between Mammals 

 and Birds ; and Agassiz, a strictly marine Reptile. Cuvier, in 1800, determined 

 the place and name it now holds. 



The P. c/rassirostris is distinguished by a very large head, a comparatively 

 short neck, and a dental formula of U . Accordine; to the restoration of the ani- 



5 ° 



mal by (ioidfuss, it would measure three feet from tip to tip of the Avings. This 

 specimen, which is the most perfect ever found, was discovered in the Litho- 

 graphic limestone (Upper Oolite) at Solenhofen, Bavaria, associated with the 

 remains of Dragon-flies, and is now in the University Museum at Bonn, Rhine 

 Valley. Size, 10 x 7. Price, $3.00. 



No. 242. Pterodactylus rhamphastinus, Wagner. 



Skeleton, on slab. This fossil was found in the Solenhofen quarries (Up- 

 per Oolite) in Bavaria, and belongs to the Museum of the University of Munich. 



Size, 13 x 10. Price, $3.25. 



No. 243. Pterodactylus spectabilis, Meyer. 



Skeleton, on slab. (Impression and relief.) The original was found at the 

 same locality as the preceding, and is in the Tylerian Museum, Haarlem, Hol- 

 land. Size, 10 x 6. Price, $2.50. 

 5 



