360 
INDEX. 
III. Begister of Species. 
(Names in italics 
synonyms; figures in 
full-face type after new 
species denote the place of description 
Acritis antiquissima, von Eichwald, . 
Acrothele coriacea, Linnarsson, 
A. ? dichotoma, Walcott, . 
A. granulata, Linnarsson, . 
A. Matthewi, Hartt, 
A. subsidua, White, . 
Acrotreta attenuata, Meek, 
A. Babel, Barrande, . 
A. Baileyi, Matthew, 
A ? costata, Davidson, . . 
A. dispftrirngata, Kutorga, 
A. gemma, Billings, 
A. ? Gulielmi, Matthew, 
A. Nicholson i, Davidson, 
A. pyxidicula, White, 
A. recurva, Kutorga . 
A. socialis, von Seebach, . 
A. subconica, Meek, . 
A. ? subsidua. White, 
Anomia biloba, Linnfi, 
A. craniolaris, Linne, 
Anomitesproductus, Martin, 
A. semireticulatus, Martin, 
Atrypa ? apiculata, Salter, 
A. cuspidata, Hall, 
A. extans, Emmons, . 
A. ? incerta, Davidson, 
A. nucleus, Hall, 
A. (Triplecia) apiculata, Salter, 
A. (T.) incerta, Davidson, . 
Aulonotreta polita, Kutorga, 
A. sculpta, Kutorga, . 
Aulosteges Dalhousii, Davidson, 
A. guadalupensis, Shumard, 
A. Medlicottianus, Waagen, 
A. spondyliformis, White and St. John, 
A. variabilis, von Helmersen, 
A. Wangenheimi, de Verneuil, 
Aviculal desquamata, Hall, . 
Barroisella subspatulata, Meek and Wortlien 
Brachyprion Eeda, Billings, 
B. geniculatum, Shaler, . 
B. ven tricosum, Shaler, 
Camarella calcii'era, Billings, . 
Cardinocrania indica, Waagen, . 
Christiania subquadrata, sp. nov., . 
Ohonetella nasuta, Waagen, 
Chonetes' Antiopia, Billings, . 
C. Canadensis, Billings, 
C. complanata, Hall, 
C. cornuta, Hall, 
C. coronata, Conrad, 
C. Dawsoni, Billings, 
C. Fischeri, Norwood and Pratten, . 
C. glabra, Geinitz , 
C. Icevis, Keyes, .... 
C. lepida, Hall, 
C. lineata, Vanuxem, 
C. mesoloba, Norwood and Pratten, 
C. minima, Sowerby, 
102, 103 
102, 103 
103 
105 
103 
101 
104 
106 
105 
102 
113 
104 
100 
204 
150 
325 
270 
270 
270 
270 
270 
271 
271 
82 
320 
320 
12, 63, 
270, 
319 
67 
164 
288 
288 
271 
154 
351 
308 
308 
311 
312 
311 
306 
306 
306 
310 
294 
Chonetes mucronata, Hall, 
C. muricata, Hall, 
C. Nova-scotica, Hall, 
C. papilionacea, Phillips, 
C. polita, McCoy, 
C. tenuistriata, Hall, 
C. undulata, Hall, 
C. Verneuiliana, Norwood and Pratten, 
Chonetina Artiensis, Krotow, 
Chonostrophia Helderbergia, sp. nov. 
Clitambonites adscendens, Pander, 
Conchites rhomboidalis, Wilckens, 
Conchyliolithus anomites resupinata, Martin, 
Conotieta Itusti, Walcott, 
Crania agariciua, sp. nov , 
C. anomala, Muller, 
C. antiquissima, von Eichwald, 
C. Brattensburgensis, Betzius, . 
C. ? Columbiana, Walcott, 
C. craniolaris, Linne, 
C. craniolaris, McCoy, 
C. favincola, sp. nov., 
C. granosa, sp. nov. . 
C. Ignabergensis, Betzius 
C. multipunctata, Miller, 
C. parallela, Ulrich, 
C. Parisiensis, Defrance, 
C. percarinata, Ulrich, . 
C. pulchella, sp. nov., 
C. radicans, Winchell, . 
C. radiosa, Gould, 
C. scabiosa, Hall, .... 
C. Schaurothi, Geinitz, 
C. Sedgwicki, Lewis, 
C. setifera, Hall, 
C. setigera, Hall, .... 
C. socialis, Ulrich, 
C. striata, Schumacher, . 
C. Trentonensis, Hall, 
C. tripartita, Munster, 
C. (Cranieila) Hamiltonias, Hall, . 
C. ( Pseudocrania) anomala, Winchell, 
C. (P.) divaricata, McCoy, 
Cranieila Hamiltoni®, Hall, . 
C. Meduanensis, (Ehlert, 
C. Ulrichi, sp. nov., 
Davidsonia Bouchardiana, de Koninck, 
D. Verneuili, Bouchard, . 
Davidsonella linguloides, Waagen, 
D. ( = Lakhmina! linguloides, Waagen, 
Derbya affinis, sp. nov., 
D. Bennetti, sp. nov., 
D. biloba, sp. nov., 
D. Broadheadi, sp. nov., 
D. Correana, Derby, . 
D. ? costatula, sp. nov., 
D. crassa, Meek and Hayden, 
D. grandis, Waagen, ... 
D. Keokuk, Hall, 
D. regnlaris, Waagen, 
346 
263 
262 
262 
262 
