12 BOTTOSAURUS. 



Lines. 

 Length of sixth cervical vertebra at the lower part of the body . . . .28 



Breadth of body anteriorly 25 



Height of body anteriorly 23 



Height of vertebral canal anteriorly 7 



Widtii of vertebral canal anteriorly 11 



Length of body of first dorsal laterally 24 



Bread til of body of first dorsal anteriorly 26 



Height from lower part of body posteriorly to summit of spinous process . . 68 



Height of vertebral canal anteriorly 7 



Width of vertebral canal anteriorly 12 



Length of body of third dorsal iuferiorly 26 



Length of body of third dorsal laterally 24 



Length of hypapophysis 9 



Width of hypapophysis at middle 10 



Height from end of hypapophysis to summit of spinous process . . . .88 



Height of body anteriorly 25 



Width of body anteriorly 27 



Height anteriorly from lower edge of body to summit of spinous process . . 75 

 Length of spinous process anteriorly from edge of vertebral canal . . .43 

 Height of vertebral canal anteriorly ......... 9 



Width of vertebral canal anteriorly . . . . . . . . .11 



Length of transverse process above ......... 24 



Length of coossified eighth and ninth dorsal bodies laterally . . . .58 



Height of body of eighth dorsal anteriorly 27 



Width of body of eighth dorsal anteriorly 25 



Height of vertebral canal anteriorly . . .8 



Width of vertebral canal anteriorly 7 



Length of body of tenth dorsal inferiorly 30 



Length of body of tenth dorsal laterally 29 



Height of body anteriorly 26 



Width of body anteriorly 27 



Height of vertebral canal anteriorly 8 



Width of vertebral canal anteriorly . . . . . . . . .7 



Height of spinous process anteriorly ......... 34 



Width of spinous process at middle 18 



Length of body of eleventh dorsal laterally ....... 28 



Length of body of twelfth dorsal laterally 30 



Length of bodies of first and second lurabars laterally 32 



Height of body of first lumbar anteriorly ........ 24 



Width of body of first lumbar anteriorly 29 



BOTTOSAURUS. 



ISotto§auriis Harlani. 



Extinct specirs of Crocodile, Harlan, Journ. Acad. Nat. Soi. Phila. IV, 1824, 15, pi. 1. 



Crocodilns Harhini, Meyer, Palseologica, 1832, 108. 



Crocodilus mncrorhijnchus, Harlan, Med. and Plij's. Researches, 1835, 369; Trans. Geolog. Soo. Penn. I, ISSP, 7G ; 



Edinb. New Phil. Journ. XVIII, 1835, 28 ; Jahrb. f. Miner. 1836, 105.— Giebel, Fauna d. Vorwelt, 1847, 122. 

 liottosanrus, Ac.As.siz, Proc. Acad. Nat. Sci. Phila. IV, 1849, 169. 

 Crocodilus basitruncatiis, Owen, Jour. Geol. Soc. Lond. V, 1849, 380 ; Palaeontology, ISGO, 277.— Pictet, Traiti; d« 



PalCont. I, 1853, 482. 



In the fourth vohime of the Journal of the Academy of Natural Sciences, IS'24, 

 Dr. Harlan described the fragment of a lower jaw, obtained from the Green Sand, 

 and presented to the Academy by Samuel Wetherill, of Burlington, N. J. The 



