INDEX 



CCXXXl 



274, 276, 277, 279, 283, 285, 286, 287, 288, 

 295, 297, 302, 304, 313, 357, 375, 376, 452, 

 viii, xiii, xiv, xviii, xxviii, xxxvi, lxx, cxliv, 

 clxxv, clxxix, cxciii ; on Harpoceratid.se, 12 ; 

 on Am. serpentinus, 13 ; on Harpoceras, 16 ; 

 on Lioc. opalinum, 53 ; on Harp, opalinum, 

 54 ; and A. compactilis, 86 ; remarks on 

 jurense-zone, 114; on Harpoceras falciferuin, 

 128 ; on Dumortieria Jamesoni, 130 ; on 

 Ludwigia, 138 ; on Pseudolioc. compactile, 

 139 ; and Am. Eseri, 143 ; and Am. oceiden- 

 talis, 144 ; on Haugia Eseri, and occidentalis, 

 154; and Ammonite convergence, 177; and 

 Grammoceras radians, 186 ; on Am. aalensis, 

 194; on Dumortieria Munieri, 238; on 

 Dumortieria, 239 ; and Guiidershofen, 258 ; 

 and Harp, subcomptum, 201 ; on Polymor- 

 phidse, 265 ; and Polymorphites, 268 ; on 

 Leesbergi, 279 ; and Ludwigia Haugi, lxx ; 

 and Gram, fluitans, c.xli ; and Dumortieria 

 graminoceroides, elxxxviii ; correction by, 

 cxciii 



Haugi, Hildoceras, 17 



haugi, Ludwigia, Suppl., PI. 14, figs. 8-10, p. lxx 



Haugi, Ludwigia, 17 



Haugia, pp. 45, 142 ; Suppl., p. x, xxii ; com- 

 pressa, dumortieri, eseri, eseri, fascigera, 

 grandis, illustris, aff. illustris, illustris, in- 

 eequa, jugosa, navis, occidentalis, ogerieni, 

 patelliformis, sculpta, sp., variabilis, aff. 

 variabilis 



Haugia, 82, 207, 226, clxix ; and Grammoceras, 

 remarks on, 221 ; from Dorsetensia, 309 ; 

 characters, vi ; from Cbartronia, xvi ; from 

 Phyinatoceras, xxx ; from Pseudogrammo- 

 ceras, cxliii ; classification, cxcviii 



Haugia, Lillia-, series, vi ; species of, vi, viii ; 

 works on, vii ; characters, viii ; classification, 

 ix ; geological position, xii ; hemerse of, xii 



Haugina?, classification, cxcviii 



hawskerensis, Ammonites, 289 ; Pleuroceras, 291, 

 295, 299, 301 



hectica, Ludwigia, 128 



Hectici, 132, cxciv 



hecticus, Ammonites, 127 



hecticum, Harpoceras, 13 



Hemera, a period of time, 447 ; importance of the 

 hemeral system, 452 ; a chronological unit, v 



Hemerse, list of, vi ; strata of certain, xxxv ; of 

 Pseudogrammocerata, cliv ; aalensis, acuti, 

 bifrontis, blagdeni, bradfordensis, coarctatae, 

 concavi, disci, discitse, dispansi, Dumortieria; 

 sp., falciferi, fuscse, garantiani, lilli, maxil- 

 latee, moorei, murchisona), niortensis, opalini- 

 formis, sauzei, scissi, Souniniae sp., striatuli, 

 struckmaimi, subcontracti, truellii, variabilis, 

 Witchelliae sp., zigzag 



Hemeral, system, 452; classification, ccv; terms, 

 ccv 



Henbury quarry, 96 



Hendford Hill, 237, clxxii 



Henleyi-zone, 132, 283 



Henrici, Harpoceras, 13 



Hereditary force, 280 



Herveyi, Ammonites, 272 



heterogenum, Liparoceras, 289 



Heteromorphous species, cciv 



heterophyllum, Phylloceras, 119 



Hiatus between Upper Freestone and Gryphite 

 grit, 64 ; between Murchisona? and Sowerbyi 

 zones, 64 



Hildoceras, p. Ill; Suppl., p. clvi; *bifrons, 

 bifrons var., boreale, cornn, cycloides, dou- 

 villei, kiliani, haugi, murchisona?, quad- 

 ratum, saemanni, semipolitum 



Hildoceras (Ludwigia) cornu, 13, 14, 128, 129 ; 

 from Pcecilomorphus, 115 ; furrows of, 135 ; 

 from Grammoceras 160 ; classification, cxcviii 



HildoceratidBs, 21, 81, 88, 101, 111, 115, 142, 

 158, i 



Hildoceratida?, 13, 129, 284, 314, cci ; where to be 

 used, correction, 101 ; remarks on family, 222 ; 

 the compressed involute shape a necessity, 

 223 ; advantage of involute over evolute in 

 the struggle for existence, 223 ; their tendency 

 towards the compressed involute shape, 223 ; 

 the early forms near the Mediterranean, 223 ; 

 less modified successors ousting more changed 

 predecessors, 223 ; constant immigration of 

 waves of less modified species, 223 ; omission 

 of stages, 224 ; new immigrants become like 

 the older, 224 ; the less modified forms per- 

 petuate the race, 224 ; revision of, additions 

 to, i ; supplementary description of species of, 

 xiii ; from Polymorphidaj, clxix ; complication 

 in, cxcix ; classification, cxcviii 



