THE LEWIS BROOKS MUSEUM. 13 



tiful specimens. The mollusks contain ceratites, ammonites, 

 &c. The fishes and reptiles are well represented, and the 

 ichnites'of the Connecticut Valley are well shown in a large 

 and fine suite. 



JURASSIC PERIOD. 



The plants are represented bv noeggerathia and c} r ca- 

 doidea. The series of animal remains is large and interest- 

 ing. From this we may mention the following : A great 

 variety of sponges and corals, nurnerous forms ot echinus, 

 conchifers, gasteropods, belemnites, 125 species of ammo- 

 nites of great variety, size and beauty. Several of them are 

 over two feet in diameter ; a number of polished sections of 

 nautili and ammonites, showing the internal structure, &c; 

 insects beautifully preserved, fishes from the lithographic 

 limestones of Bavaria, the lias of England, &c, showing 

 numerous genera, several complete skeletons of ichthyo- 

 saurus and plesiosaurus, one of the latter twenty-two feet 

 long (cast) ; head of ichthyosaurus, five feet long ; a paddle 

 of plesiosaurus over six feet in length, several skeletons of 

 teleosaurus, pterodactylus, &c. These saurian forms are plas- 

 ter casts. Restorations on a reduced scale of ichthyosaurus, 

 plesiosaurus, :negalosaurus and pterodactylus. Included with 

 these are models of the cheirotherium of the Trias, and the 

 ignanodon of the Wealden. 



CRETACEOUS PERIOD. 



The vegetable remains are leaves mainly, and belong to 

 several modern genera, as the oak, sassafras, &c, &c. 



All classes of testacsa are well exhibited, but the col- 

 lection is richest in sponge^, echini, conchifers and cephalo- 

 pods. 



The typical genera, exogyra, gryphaea and inoceramus 

 are well illustrated, as well as the peculiar groups of ru- 

 distes, hippurites, &c, &c. The most remarkable reptilian 

 remains are heads of of crocodilus and mosasaurus. 



