214 



Trans. Acad. Set. of St. Louis. 



Acentotremites 33 

 Acris 80 

 Agassizocrinus 5 

 Amblystoma 78 

 Aromochelys 82 



Bascanion 85 

 Blastoidocrinus 51 

 Bombus 192 



Carolinea 203 



Carpeuteroblastus 52 



Cassia 201, 202 



Chrysemys 80, 81 



CidarobJastus 34, 45, 58, 67. p?. 3, 5 



Clavaeblastus 34, 44 



Codaster iv, 20, 34, 47, 48, 51, 52, 



64 

 Codonites 34, 46, 47, 52, 55, 64 

 Coluber 84 

 Cribroblastus 34, 39-42, 57-9, 63, 



66, 67. pi. 5 

 Cryptoblastus 7, 32, 33, 40, 41, 64 

 Cryptoschisraa 64 



Echinus 3 



Elaeacrinus 9, 22, 23, 25, 26, 33, 40, 



49, 50 

 Eleutlieroblastus 35, 50, 51 

 Eleutlierocrinus 51, 64 

 Eragrostis 175, 178, 180 



Farancia 83 



Globoblastus 34, 46, 61, 62, 67. 



pi. 3, 5 

 Gloeosporium xxvii 

 Goniomemius xliii 

 Granatocrinites 29, 30 

 Granatocriuus 1, 6, 9, 12, 21, 22, 



24-8, 30-32, 40-42, 45, 46, 51, 52, 



64, 65 



Hemidactylium 78 

 Heteroblastus 32, 40, 65 

 Heteroschisma 9, 48 



INDEX TO GENERA. 



Liopeltis 83 

 Lophoblastus 52 



Megastachya 180 

 Mesoblastus 34, 42, 45, 65 

 Metablastus 43, 44, 65 

 Millericrinus 3 

 Monochoria 202 



Natrix 85, 86 

 Neeragrostis 178. pi. 7, 8 

 Nucleocrinus 22-5, 40, 49-51, 65 

 Nycterium 193, 198 



Olivanites 16, 22, 35, 48-50 

 Orbitremites 40, 41, 45, 46 

 Orophocrinus 47, 65 

 Ozotlieca 82 



Pachira xlii, 203, 209. pi. 9-11 

 Pentrematites 26, 28, 43, 45 

 Pentremites 2, 3, 5, 8, 9, 11, 13-20, 



22-7, 31, 32, 34-44, 46-8, 50-6, 



59, 65, 66. pi. 1-6 

 Pentremitidea 8, 44, 66 

 Phaeuoscliisma 48, 66 

 Phrynosoma 82 

 Piptopliis 85 

 Poa 175, 178, 180 

 Pseudemys 81 



Saccoblastus 4, 34, 39, 42-4, 60, 67. 



pi. 3, 4 

 Schizoblastus 33, 40-2, 66 

 Sistrurus 83 

 Solauum 185 

 Spelerpes 79 

 Stephanocrinus 48 



Tricoelocrinus 39, 43, 44, 66 

 Troostocrinus 39, 43, 44, 48, 52 

 Typhlotriton 80 



Zygocrinus 66 



I 



