64: 



VEETEBEATAo 



of the orbits, so that, viewed from above, it resembles a long-necked bottle. The 

 orbits are situated in the posterior half of the skull, and the nostrils are lateral. 

 This fossil was found in the Muschelkalk (Trias) at Bayreuth, Bavaria, and is in 

 the Royal Anatomical Museum of Berlin. Size, 10x4. Price, $1.00. 



No. 235. Nothosaurus mirabilis, Miinst. 



Skull. This Triassic sea-saurian 

 had very large temporal, orbital and 

 i nasal cavities. The premaxillary teeth 

 were unusually long, strong and sharp ; 

 there were two similar teeth in each maxillary ; the remaining serial teeth were 

 small but acute. All the teeth were inserted in distinct cavities. The animal 

 attained the length of seven feet. This specimen is from the Muschelkalk at 

 Bayreuth, Bavaria, and is in the Tylerian Museum of Haarlem. 



Size, 15 x 6. Price, $2.00. 



No. 236. Nothosaurus mirabilis, Miinst. 



Lower Jaw, anterior half. From the Muschelkalk at Bayreuth, Bava- 

 ria, and now in the University Museum of Munich. Size, 9x3. Price, $1.00. 



No. 237. Placodus gigas,"' Agass. 



Skull. This Reptile (formerly called 

 a Fish) was an Enaliosaurian, according to 

 Owen, breathing the air like Cetaceans. 

 No part, save the head has been found. 

 The cranium is as broad as long, the figure 

 viewed from above being that of a right- 

 angled triangle with the corners rounded 

 off. No other number of the class has such 

 wide temporal fossas and strong zygomatic 

 arches ; the lower jaw, moreover, presents 

 an excessive development of the coronoid 

 process. These developments, for great size 

 and power of action of the biting and grind- 

 ing muscles, relate to a most extraordinary 

 form and size of the teeth, which resemble 

 paving stones, and were evidently adapted 

 to crack and bruise shells and crusts of 

 marine Invertebrates. The palatal teeth, 

 three on each side, are of large size ; the 

 maxillary teeth, four in number, are much 

 smaller ; the premaxillary teeth, three in each ramus, are elongated and conical. 

 The palatal are relatively larger than the teeth of any known animal, living or 

 fossil. All these teeth are implanted in distinct sockets. This skull was found in 

 the Muschelkalk (Trias) at Laineck, Bavaria, and belongs to the University Mu- 



Size, 7x5. Price, $2.75. 



seurn of Munich. 



No. 238. Placodus gigas, Agass. 



Lower Jaw. From the same locality and Museum. — Size, 7x4. Price, $1 .50. 



No. 239. Placodus gigas, Agass. 



Lower Jaw, right ramus. From the same locality and Museum. Price ! 



.75. 



