PISCES. 



69 



No. 109. [1301] Lepidotus Maximus, Wagner. 



Skeleton, on slab (cast). This was one of the largest of the ancient ganoid 

 fishes, and was in shape much like the modern carp. Its vertebrae were well 

 ossified, and its body was encased in a cuirass of highly polished, imbricated, 

 rhomboid scales, forming an impenetrable armor. Its mouth was small, with 



. 



blunt, spheroidal teeth; it had a short dorsal fin opposite the anal, and a 

 homocercal tail. This, the only perfect specimen of this species ever found, 

 was discovered in 1869, in the lithographic quarries (Middle Oolite) of Solen- 

 hofen, Bavaria, and is in the Museum of the University of Munich. 



Size, 6 ft. X 2 ft. G in. 



No. 110. [317] Lepidotus minor, Agassiz 



Body and Head, on slab 

 (cast). This fine specimen 

 of a homocercal lepido- 

 ganoid — distinguished by its 

 small, shining scales, and 

 unusually perfect in all its 

 parts — was discovered in tlie 

 Purbeck limestone (Upper 

 Oolite) on the Isle of Port- 

 land, England, and is in the 

 the British Museum, 



Size, 17 X 10. 



No. 111. [319] Aspidorhynchus SpecioSUS, Agassiz. 



--.>,,,,;jaaigie!aKaa«^^»=:»>a=pigaai-----'^^^ 



Body AND Head, 



on slab (cast). This 

 homocercal gan- 

 oid is character- 

 ized by a long body 

 of nearly equal 

 size throughout, by a pointed head, and by the disposition of the scales in 



