420 PROCEEDINGS OF THE ACADEMY OP 



31. Ammonites ver m ilio nen s is, M. & H. Mar I860, Pr. Acad. Nat. Sci. 



Phila. 177. 



32. Ammonites complexis, Hall & Meek, 1854, Mem. Am. Arts and Sci. 



Boston, v. N. S. 394, pi. iv. fig. 1. 



33. Ammonites Halli, M. & H. March 1856, Pr. Acad. Nat. Sci. Phila. 70. 



34. Ammonites placenta, Dekay, 1827, New York Lye. Nat. ii. pi. 5, fig. 2. 

 (Non A. placenta Leckenby, 1858.) 



35. Ammonites placenta, var. intercalaris, M. &H. Pr. Acad.Nat. Sci. Phil. 177. 



36. Ammonites lobatus, Tuomey, 1854, Pr. Acad. Nat Sci. Phila. vii. 168, 

 Ammonites lenticularis , Owen, 1852 Report Iowa, Wiscon. and Min. tab. 8. 



fig. 5 (non A. lenticularis of Phillips, 1825). 



37. Scaphites Mandanensis, Morton sp. 



Ammonites Mandanensis, Morton, 1841, Jour. Acad. Nat. Sci. Phila. viii. 208, 



pi. 10, fig. 2. 

 Scaphites Mandanensis, Meek & Hayden, Nov. 1836, Pr. Acad. Nat. Sci. 



Phila. 281. 



38. Scaphites abyssinus, Morton sp. 



Scaphites Mandanensis? Meek & Hayden, Nov. 1836, Pr. Acad. Nat. Sci. 

 Phila. 281. 



39. Scaphites Cheyennensis, Owen sp. 



Ammonites Nebrascensis, Owen, 1852. ReportVTiscon.IowaandMin.pl. 7, fig. 2. 

 Ammonites Cheyennensis, Owen, " " " pi. 8, fig. 2. 



Ammonites Moreauensis, Owen, " " < pl.8, fig. 2. 



Scaphites Conradi (pars), Meek & Hayden, Nov. 1856, Pr. Acad. Nat. Sci. 

 Phila. 281. 



40. Scaphites Conradi, Morton sp. 



Ammonites Conradi, Morton, 1834, Synop. Org. Rem. 39, pi. 16, fig. 1, 2, 3. 

 Ammonites Dance, d'Orbigny, 1850, Prodrom. de Palasont. ii. 213. 

 Scaphites Conradi, d'Orbigny, 1850, " " " 214. 



41. Scaphites Conradi, var. gulosus, Morton sp. 



Ammonites var. gulosus, Morton, 1854, Synopsis Org. Rem. 39. pi. xvi. fig. 2. 



42. Scaphites N i c o 1 1 e t i i, Morton sp. 



Ammonites Mcolle'ii, Morton, 1841, Jour. Ac. Nat. Sci. Phila.viii. pi. 10, fig. 3. 

 Scaphites compnmus [.?], Owen, Report Wiscon Iowa and Min. tab. 7, fig. 4. 

 Scaphites Nicolletii, Meek & Hayden, Nov. 1856. Proc. Acad. Nat. Sci. Phila. 

 281. 



43. Scaphites (Ammonites?) n o d o s u s, Owen, 1852, Report Iowa, Wiscon. 



and Min. 581, tab. 8, fig. 4. 



44. Scaphites no dos us var. pi en us, M. & H. May 1860, Pr. Acad. Nat. Sci. 



Phila. 177. 



45. Scaphites n o d o s u s var. b r e v i s, Meek & Hayden (MSS.) 



46. Scaphites no dos u s var. qaadrangulus, Meek k Hayden (MSS.) 



47. Scaphites no dos us var. exili s, Meek & Hayden. 



48. Scaphites 1 a r v ae f o r m i s, M. & H. March 1856, Pr. Acad. Nat. Sci. Phil. 58. 



49. Scaphites Warreni, M. & H. May 1860, Pr. Acad.Nat. Sci. Phila. 177. 



50. Ancyloceras ? uncus, Meek & Hayden. 



Ancyloceras (Hamites) uncus, M. & H. Pr. Acad. Nat. Sci. Phila. 56. 



[Oct. 



