ccxliv 



INFERIOR OOLITE AMMONITES 



1 Vim Wood, L53, 229, 231, 239, 251, 252, 253, 

 275, 281, xlii, clxix, clxxi, clxxii, clxxiii, 

 clxxvii, clxxviii, clxxix, clxxv, clxxxvi, clxxxvii 



Penn Wood, strata of, ccviii 



Pentacrinites, 43 



Per-, use of, cxcvii 



Perangustunil >ilicate, cxcvii 



peregriiius, Polymorphites, 234 



Periodic constrictions, 263 



Peripheral projection, loss of, lxxii 



Periphery, nomenclature for, iv ; fastigation of, 

 in relation to development, lxvii ; carinati- 

 tabulate, cv ; degrees of tabulation of, cvi ; 

 carinatitabulate, polyphyletic, cxv ; ornament 

 on, cc ; subtabulate (division), lxvi ; tabulate 

 (division), Lxv ; angulate, cci ; carinate, cci ; 

 carinatisulcate, cci ; tuberculate, how pro- 

 duced, cci 



Perisphinctes, 14, 256, 272 ; Davidsoni, Martinsii, 

 procerus ; and Parkinsonia, 272 ; poly genetic 

 origin of, 272 ; descended from coronate 

 radical, 272 ; as senile development of 

 Stephanoceras, 272 



Perlatumbilicate, cxcvii 



Perleptogyral, cxcvii 



perovalis, Terebratula, 8 



Perpachygyral, cxcvii 



Perplatygyral, cxcvii 



Perroudi, Ammonites, clxxii ; Catulloceras, 277, 

 281, 282, 285 



l'erstenogyral, cxcvii 



pertinax, Hainmatoceras, 294, 21*7 



pertinax, Zurcheria, PI. 49, figs. 21, 22 ; p. 297 



pettos-Blagdeni, Ammonites, 271, 272 



Phenomena of development, cxcix 



Phillips, Professor J., 241, clxxi v 



Phillipsiana beds, ccix ; date of, ccvi 



Phlyseogrammoceras, p. cliv ; dispansum, metal- 

 larium, orbignyi 



Phlyseogrammoceras, classification, cxcviii 



Photography, example of incorrectness of, 320 ; 

 applied to suture lines, 380 ; errors of, 380 



Phylembryonic, 357 



Phylephebic, 357 



Phylhypostrophic, 357 



Phylloceras, 119 ; cycloides, heterophylluni, nils- 

 soni, subcarinatum, trifoliatum, ultramonta- 

 niiiii 



Phylo-, as prefix, 357 



Phylobrephic, 357 



Phylocatabatic, 357 



Phyloeatagenesis, cci, ccii 



Pliylogenetic series, 295 



Phylogeny, ccii; not repeated in ontogeny, causes 



of, 289 ; terms of, 357 ; stages of, how dis- 

 tinguished by terms, 357 ; and ontogeny, 



cxcix 

 Phylogerontic, 357 ; stage, lxiv 

 Phyloneanic, 357 

 Phylseograminoceras, cliv (misprint), see Phlyseo- 



grammoceras 

 Phymatoceras, p. 108 ; Suppl., pp. xi, xxx ; 



dumortieii, pauper, robustum, tirolense 

 Phymatoceras, 13 ; from Brodieia, xxxi ; from 



Phlyseogrammoceras, civ ; classification, 



cxcviii 

 Phymatoidae, 13, 15 

 pigrum, Cypholioceras, Suppl., PI. 5, figs. 3, 4 ; p. 



xlv 

 Pike, Hyatt on, 233 

 pinax, Strophogyria, PI. 2, figs. 3, 4 (Ludwigia 



Murchisonaj) ; Suppl., Fig. 21, p. lxiii 

 Pinguia, cxxiii, cxlix 

 pinguis, Brasilia, PI. 12, figs. 1-3, p. 66 (Lioceras 



concavuin var. pingue) ; Suppl., Fig. 42 in 



text, p. lxxxi 

 piodes, Reynesella, PI. 16, figs. 7 9, p. 92 (Hyper- 



lioceras Walkeri) ; Suppl., PI. 18, figs. 24, 25 ; 



p. cix 

 Pipley Bottom, xxvi 

 Pisolite beds, 3 

 Pisolite character absent, lxvi 

 Pisolitic beds, conditions, 3 

 pisolithica, Terebratula, 43 

 placidum, Pseudogrammoceras ?, PI. 29, figs. 8- 



10 ; PI. 33, figs. 11, 12 ; p. 182 (arammoceras 



dcerntense) ; Suppl., Fig. 152, p. clxvii ; p. 



cliii 

 planaris, Darellina, Suppl., PI. 17, figs, 22 24 ; 



PL 22, figs. 7 9 ; p. cvi 

 Planate, iv 



planicosta, Ammonites, 232, 289 

 Planicostan abdomen, 233, 264 

 plani-fastigate, iv ; (series), lxxxi 

 Plant bed, 47 

 Planulati, Lias, not ancestors of Perisphinctes, 272 



