INDEX. 



235 



Psiloceras Naumanui, 124. 



(iEgoe.) Naumanni, 124. 



pachydisous, 123. 



planilaterale, 196. 



planorbe, 6, 22, 25, 37, 39, 41, 54-56, 5S, 62, 65- 

 67, 78, 80-82, 85, 90-93, 112, 113, 115, 117, 

 121-124, 126, 136, 140, 142. 155, 156, 161, 

 163, 164, 195-197, 215. 



planorboides, 89, 122. 



pleurolissum, 75, 122. 



pleuronotum, 123, 124. 



polycyclum, 122. 



polyphyllum, 123. 



Rabana, 89. 



sublaqueum, 123. 



sublaqueum, Wah., 126, 147. 



tenerum, Wah., 126. 

 Psiloceratites, 6, 72, 85, 89, 90, 93, 136. 

 Pteronautilus, 80. 

 Pteropoda, 8, 10, 16. 

 Ptyehites, 5, 6. 

 Ptyohoceras, 29. 

 Pulchellia, 23. 

 Pyrenean Basin, 87. 



Quadragonal Whorl, 56, 77, 78. 



Quedlinburg, 92, 137, 138, 146. 



Quenstedtioceras, 23, 28. 



Quenstedt, vii, 1, 29, 32, 33, 37, 55, 58, 62, 83, 90, 91, 

 92, 93, 96, 98, 101, 105, 112, 113, 121, 123, 125, 

 128, 129, 131, 135, 137, 138, 139, 141, 143, 149, 

 155, 157, 158, 163, 167, 168, 169, 171, 177, 179, 

 180, 181, 182, 183, 184, 185, 186, 187, 190, 192, 

 196, 197, 199, 200, 201, 209, 211, 216, 217, 218, 

 219, 221. 



Radical Stock, 22, 24, 57, 85, 107, 112, 120. 

 Radicals, Acmic, 23. 



Geratologous, 28. 



Mesozoic, 22. 



Primary, 3. 



Primitive, 3, 16. 



Retrogressive Forms, 28. 



Secondary, 3, 22, 71. 



Theory of, 21, 28. 



Transitional, 3. 

 Raidwangen, 169. 

 Ramert, 170. 



Raricostatus Bed, 103, 104, 106, 109, 146. 

 Red Car, 96. 

 Reineckia, 23. 



Replacement of characteristics, law of, 44 ; in anagene- 

 sis, 74; in catagenesis, 7S. 

 Residual Basins, 89. 



Faunas, si, 89, 106, 114, 116. 

 Retrogressive Characters, genesis of, 74; tendency to 



inheritance of, 78. 

 Retrogressive Forms, morphological equivalence in, 

 2S, 30. 



Reynes, 102, 103, 153, 167, 176, 181, 185, 200. 



Rhabdoceras, 28, 30. 



Rhaeophyllites, 122 note. 



Rhsetic, 28, 90, 103, 111. 



Rhine, 113, 114. 



Rhone, 87, 88, 91, 96, 98-101, 103, 106, 108, 111, 112, 



188. 

 Rhone Basin, 92, 96, 97, 102, 104, 106, 108, 111, 114- 



116, 213, 217. 

 Rinteln, 137. 



Robin Hood's Bay, 146, 170, 171, 201, 203. 

 Rollier, 90. 

 Romer, 92. 

 Rostrum, 29, 49. 

 Rotiformis Zone, 109, 134, 189. 

 Rudern, 121. 

 Ruffy, 122. 

 Rugby, 155. 

 Ruminantia, 27. 

 Russia, 87. 



Russian Province, 86. 

 Rvder, viii, 43. 



Salins, 90, 144, 157, 169, 184, 197, 201, 204, 214. 



Sageceras, 4. 



Saudberger, Guido, vii, 2, 14, 18. 



San Francisco, 87, 173. 



Sannionites, 13, 48. 



Saone et Loire, 87, 88. 



Saulieu, 91, 121, 142. 



Scaphites, 31, 32, 47. 



Scaphites umbilicus, 34. 



ventricosus, 32. 

 Scaphopoda, 10, 16. 

 Schaichhof, 191, 192. 

 Scheppenstadt, 191, 193. 

 Schlbnbach, 92, 98, 101, 102. 

 Schlcenbachia tricarinatus, 24. 



Westphalicus, 24. 

 Schlotheimia, 5, 6, 7, 40, 44, 54, 58, 71, 73, 75, 80, 84, 

 93, 106, 107, 113, 114, 115, 118, 123, 125-127, 

 134, 135, 154, 157, 194, 201 note. 

 Schlotheimia angulata, 93, 94, 126, 128, 129, 132, 134, 

 196. 



angulata, Wah., 130, 134. 



angulata, Zittel, 130. 



angulicostata, Gey., 135. 



angustisulcata, Gey., 135. 



Boucaultiana, 94. 



Boucaultiana, Wah., 21, 75, 133. 



catenata, 7, 25, 40, 57, 71, 73, 75, 90, 94, 113, 

 117, 127, 128, 131, 134, 135. 



catenata, Wah., 25, 58, 129, 134. 



colubrata, 130. 



comptum, 134. 



Charmassei, 41, 94, 133, 134. 



Charmassei, D'Orb., 132. 



Charmassei, Wah., 132. 



donar, 128, 134. 



