244 



Indiana, new genus of Ostracod 169 



I. lippa, described 171 



I. ovalis, described 170 



I. mut. prima, described 171 



Indian biook, plateau of Cambrian rocks 20 



I. ripple marked flags on 44 



I. Coldbrook terrane on 14 



Johannian division on Boundary brook 30 



at Gillis brook, East bay 46 



sandstones at Long island 40 



strata at McMullin brook 41 



at Mclntosh brook .. 44 



Leperditia (' ?) rugosa, described 155 



Leptobolus, Hall, characters of the genus 105 



L. valves of, decidedly oriented 54 



L. atavus, description of 106 



L. development of the phylum ill 



L. compared with other species 108 



L. mut. insulse, described 110 



L. tritavus 109 



L. collicia, description of 112 



L. v. collis, described 114 



L. flumenis, description of , 189 



L. gemmulus, description of 190 



L. cf. linguloides, description of 192 



L. torrentis, description of 74 



Lingulella concinna, described 203 



L. cf. Davisii, described 203 



L. laevis v. grandis, described 200 



L. v. lens, described 201 



L. cf . lepis, description of 204 



L. longovalis, ,< 123 



L. range and dimensions of 124 



L. cf. loneroralis, range and dimensions of 75 



L. radula v. aspera described 204 



L. Selwyni, figure and description. . . . , 117 



L. additional notes 121 



L. dimensions of valves 122 



L. muscular and circulatory systems 118 



L. original description . '. 120 



L. tumida, description of 123 



Lingulepides, oriented in Assise E. Id 57 



Lingulepis, Hall, characters of the genus 126 



L. : Gregwa, description of 126 



L. robusta, described 131 



L. ornamentation and dimensions of 128 



L. longinervis, description of 133 



L. pumila, described 75 



L. Roberti, description of 132 



L. rotunda, 199 



L. starri, var. n u 193 



L. mut. exigua, described 187 



