230 INDEX. 
Cymbites globosus, Geyer, 195, 200, 202. 
Cyrtocerina, 12, 13. 
Cyrtoceras, 25. 
Cyrtoceras indomitum, Bar., 34. 
Logani, Bar., 34. 
rebelle, Bar., 34. 
Dactyloceras, 23, 42. 
Dactyloide, 23. 
Darwin, 27. 
Davidsoni Bed, 105, 213. 
Definition of genus, 55. 
of species, 56. 
Degerloch, 196. 
Degeneration, acceleration in, x. 
of sutures, 57. 
tendency to inheritance, 77. 
law of replacement, 78. 
sutures persistent in, 83. 
Dentalium, 10, 15, 16. 
Desmoceras, 24, 105. 
Deroceras armatum, 23. 
Dudressieri, 23, 42. 
planicosta, 99, 105, 131, 196. 
Deroceratidee, 117. 
Development, three phases of, x, 37. 
acceleration in, ix. 
anaplastic mode of, 38, 39. 
cataplastic mode of, 38. 
metaplastic mode of, 38. 
Dewalque, 91, 101. 
Deyrolay, 130. 
Diebrook, 129. 
Dieulefait, 88, 114. 
Differences, advantageous, 50. 
Differential characteristics, ix, 19, 22, 53, 80. 
Differentials, origin of, 48. 
morphological, viii, ix. 
Digue, 114. 
Diptera, 45, 47. 
Dinarites, 22. 
Dorsetshire, 88. 
Déshult, 88. 
Doubs, 87. 
Draguignan, 114. 
Dréme, 87. 
Dumortier, 88, 91, 93, 95, 97-99, 102, 104, 105, 111, 
114, 135, 188, 205, 212-214, 219-221. 
Dunker, 123, 138. 
Durance, 114. 
Durrenburg, 168. 
Dwarfs, 77, 112, 184, 204, 216. 
Kcole des Mines, 138, 159, 160, 216. 
Effort, Law of, ix, 53. 
Elwangen, 143. 
Emerson, viii, 58, 92, 94, 98, 102, 114, 119, 129. 
Endigen, 208, 209. 
Endoceras, 13, 15, 35 note, 52. 
Endoceratide, 11, 12, 13, 16, 19, 20, 48. 
Endocones (sheaths), 12, 13. 
Endosiphon, 12, 13. 
England, 64, 88, 92, 93, 96, 97, 99, 100-108, 106, 108, 
111, 114, 117, 155, 159, 169, 170, 171, 184, 196. 
Enzesfeld, 95, 109, 143. 
Epacme, x, 21, 52. 
Epacmic radicals, 28. 
Ephebolic, 12, 18, 19, 20, 87, 75, 206. 
Equivalence, Morphological, viii, 21, 22, 25, i428; 
29, 30, 56. 
Organic, viii. 
Equivalent species, 22. 
Equivalents, Morphological, viii. 
Organic, vill. 
Etheridge, viii. 
Europe, 117, 118, 119. 
European Province, 118, 152. 
Evolution by cycles (vortices), 108. 
Law of Types in, 16 note. 
of geratologous forms, 31, 36, 47. 
requirements of a theory of, 38. 
Exact parallelism, 27. 
Existence, struggle for, 27, 38, 53. . 
Dinarites Mahomedanus, 22. 
Diploplacula, 8. 
Discoceras, 36. 
Discoceras Conybeari, 157. 
ophioides, 160. 
spiratissimum, 155. 
Distoma, 47. 
Distribution, Chorologic, 85, 103. 
Chronologie, 85. 
Geographic, 86, 
Dobrudscha, 86. 
Dohrn, 30. 
Dompan, 88. 
Donetz, 86, 
Donar, 134. 
DOrbigny, 7, 81, 88, 86, 87, 58, 59, 61, 104, 129, 130, 
132, 188, 187, 188, 189, 142, 144, 161, 159, 178, 
184, 191, 206, 212, 213, 218, 220. 
Falciferi, 84. 
Fauna of Central Europe, 106. 
Cote d’Or, 103. 
England, 106. 
Kutch, 86. 
Province of the Mediterranean, 108. 
Rhone Basin, 104. 
South Germany, 103. 
Faunas, Analdainic, 89, 111, 117, 118. 
Autochthonous, 89, 111, 113. 
Residual, xi, 89, 106, 114, 116. 
Mixed, 109-111. 
of the Lias, 154. 
Favre, 110. 
Filder, 122, 123, 126, 182, 156, 165, 175, 179. 
Fischer, ix, 7. 
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