CCWXll 



INFERIOR OOLITE AMMONITES 



Hildoceratinse, 15, 1<>, 21 ; read Hildoceratidse for, 

 81 ; classification, cxcviii 



Hinton, 175 



Holandrei, Dactylioceras, 165 



Holm, lxx 



Hollands, Cosmoceras, 273, 275 



hollandae, Traetoceras, PI. 48, figs. 11, 12 ; p. 275 



Hollow carina, 81, iv ; and see carina 



Hollow carinate G-rammocerata, 200 



Homoeomorph, xlviii 



Homoeomorphous, 368 ; fossils, examples of, 381 ; 

 species, cciv 



Homoeomorplis, examples, lxviii 



Hoinoeomorphy, deceptions of, ii ; case of decep- 

 tion of, clxxxii ; of concavumbilicate species, 

 xcviii 



Homogenous, 280 



Homoplastic, 280 ; developments, 272 



Hook Norton, 40, 52, 53 



Horethorne Down, 275 ; strata of, ccvii 



Horn Park, lix, lx 



Horizon, fossiliferous in Sands, clxxxiii ; of Tmeto- 

 ceras, clxx 



Hudleston, W. H, 47, 61, 63, 64, 119, 167, 168, 

 175, 188, 194, 225, 228, 229, 274, 374, xlviii ; 

 on Inferior Oolite, 4 ; on Burton Bradstock, 

 47 ; on Mid ford Sands, 51 ; and Concavum 

 beds, 63 ; on Gasteropoda, 64 ; Concavum- 

 beds, 65 ; sent specimens, 228 ; and Sherborne 

 excavations, 374 



Hudlestonia, p. 225 ; affinis, serrodens, sinon 



Hudlestonia, from Dorsetensia, 309 ; classification, 

 cxcviii 



Hugia, Suppl., p. cxi ; curva, micca 



Hugia from Lopadoceras, cxii ; classification, 

 cxcviii 



Humphriesianum, Stephanoceras, 5, 9, 63, 120, 

 272 



Humphriesianum-zone, 4, 6, 8, 9, 63, 64, 119, 291- 

 293 ; thickness of, fossils of, 10 



Huinphriesianum-Sauzei-zone, 316 



Humphriesianus, Ammonites, 63 



Humphriestanus-zone, absence of, in Cotteswolds, 

 91 



Hyatt, Alpheus, 12, 13, 35, 111, 143, 146, 158, 

 159, 173, 192, 215, 225, 226, 232, 233, 234, 

 270, 280, 286, 289, 290, 312, 315, 357, xxx, 

 xxxv, lv, cxxxi ; on classification of Ammo- 



nites, 11 ; on genera of Ammonites, 12; on 

 Ammonites, 13 ; and Tropidoceras, 14 ; lists 

 of papers by, 160 ; on Pelecoceras, 225 ; and 

 Ophioceras, 232 ; on pike, 233 ; and Amal- 

 theidse, 290 ; on absorption of living chamber, 

 312 ; on Phymatoceras robustum, xxx ; and 

 Hyattia, lv ; and Arietidae, cxcix 



Hyatteinse, classification, cxcviii 



Hyattia, Suppl., p. lv; bullifera, pustulifera, 

 subcava, wilsoni 



Hyattia, from Manselia, lviii ; classification, 

 cxcviii 



Hyattina, Suppl., p. lvii ; brasili, sp. 



Hyattina, from Manselia, lviii ; from Apedogyria, 

 lix ; classification, cxcviii 



Hyperlioceras, p. 88 ; Suppl., p. cxxi ; curvi- 

 costatum, deflexum, desori, *discites, dis- 

 cites, discoideum, discitiforme, liodiscites, 

 lucyi, occlusum, rudidiscites, subdiscoid&um, 

 subleve, wcdkeri 



Hyperlioceras, 223, 447, iv ; from Dorsetensia, 

 309 ; from Toxolioceras, cxxvi ; ancestor not 

 Pseudolioceras, clviii ; classification, cxcviii 



Hypostrophic, 357 ; characters, association of, 

 lxxii ; abnormality, xcvii 



Hypostrophy, signs of, clix 



Ibex zone, 132, 283 



Identification, necessity of noting small differences 

 in young specimens, 426 ; necessity of cor- 

 rectly measuring umbilicus in young speci- 

 mens, 440 ; obscure characters must be 

 attended to, 451 



idoneum, Deltoidoceras, Suppl., Fig. 80 in text, 

 p. cxvii 



iguobilis, Ludwigia, 128 



illustris, Ammonites, 153, vii, xi; (Hammatoceras), 

 153, xxvi, xxvii 



illustris, Haugia, PI. 26, figs. 3-5, p. 153, see aff. 

 illustris, H. 



illustris, Haugia, Suppl., pp. xxvi, xxvii 



aff. illustris, Haugia, PI. 26, figs. 3 5, p. 153 

 (Haugia illustris) ; Suppl., p. xxvii 



illustris, Haugia, xxvii 



Ilminster, 175, 213, 231, xxii, xxv, xxvi, lxxxvi, 

 cxliv ; Oppel's statement about Ammonites in 

 Sands at, 50 ; and Yeovil, lxxxvi ; concavus 

 strata distant from, lxxxvi ; strata of,ccviii,ccix 



