INDEX. 



361 



Derbya robusta, Hall, 



D. ruginosa, sp. nov., 



Dinobolu3 Bohemicus, Barrande, 



D. Brimonti, Rouault, 



D. Canadensis, Billings, 



D. Conradi, Hall, . :\S, ; 



D. Hicksi, Davidson, . 



D. magnificus, Billings, . 



I>. parvus, Whitfield, . 



D. Schmidti, Davidson and King, 



D. transversu3, Salter, 



D. Woodwaidi, Salter, . 



Discina acadica, Ilartt, 



D. ampla, Ilall, 



D 1 Baldetckensis, Davidson, 



D. Bohemica, Bairande, 



D. Caer/aiensis, Hicks, 



D. Clara, Spencer, 



D. Conradi, Hall, 



D. discus. Hall, 



D. Doria, Hall, 



D. grandis, Vanuxem, . 



D. humilis. Hall, 



D. Herzeri, sp. nov., 



D. intermedin, Barrande, 



D. inutilis. Hall, . 



D. lamellosa, Brodsrip, 



D. Lodensis, Hall, 



D. Mceotis, Banaude, 



D. Manhattanensis, Meek and Wortben, 



D. marginalis, Whitlield, 



D. media. Hall, 



D. minuta, Hall, 



D. Morrisi, Davidson, 



D. Newberryi, Hall, . 



D. nitida, Phillips, 



D. ostrcBOides, Lamarck, 



D. pileolus. Hicks, 



D. pleurites. Meek, 



D. Randalli, Hall, 



D. reversa, Barrande, 



D. rugata, Barrande, 



D. secedens, Barrande 



D. striata, Schumacher, 



D. striata, Sowerby, 



D. tarda, Barrande, 



Z>. tenuilamellata, Hall, 



D. truncata. Hall, 



D. (CEhlertella) pleurites. . 

 Discinisca lamelloaa, Broderip, 

 Discinolepis granulata, Waagen, 

 Discinopsis Gulielmi, Matthew, 

 Douvillina Dutertrii, Murchison, 

 Elkania desiderata, Billings, 

 Enteletes ferrugineus, Waagen, . 



E. hemiplicatus, Hall, . 

 E. Lamarcki, Fischer de Waldheim, 

 E. pentameroides, Waagen, 

 Glottidia Audebardi, Broderip, . 

 G. Palmeri, Ball, 

 Gonambonites lata, Pander, 

 Hemipronites alta, Pander, . 

 H. Americana, Whitfield, 

 B. apicalis, Whitfield, . 



