re xx 



INFERIOR OOLITE AMMONITES 



concentrica, Fontannesia, Suppl., PI. 24, figs. 5, 



6 ; p. cxci 

 Concentrilatumbtficate, v 

 Concentrumbilicate, v 

 ( lonch, i 

 concinna, Darellia, Suppl., PI. 18, figs 16-18 ; p. 



cxiv 

 Cone, coiling of, cci 

 confusum, Lytoceras, cc 

 confusus, Ammonites, 268 

 confusus, Polymorphites, 234 

 Conglomerate-bed, date of, ccvi 

 conjungens, Ammonites, cxcv 

 conjungens, (Ecotraustes, PI. 20, figs. 13, 14, 



see nodifer, (E. ; PL 20, figs. 15-17, costi- 



ger, CE. 

 conjungens, (Ecotraustes, cxciv, cxcv 

 connectens, Hildoceras, xxxvi 

 contorta, Braunsina, Suppl., PI. 17, figs. 16-18 ; 



Fig. 62 in text, p. xcix 

 contusa, Sonninia, PI. 88, figs. 5 7 ; pp. 387, 



409 

 Convergence, 77, 177,195,234; manner of, 137 ; 



and law of development, 178; <>f Dumortieria 



and Grammoceras, 234 ; of Dumortieria and 



Sonninia, 340 ; complicated cases of, 257, 



340 ; degeneration producing ; senescent and 



senile period producing, 284 

 Convex, iv 

 Convexi-fastigate, iv 

 Convexi-fastigate (series), lxxx, ciii 

 Conybearei, Ammonites, xvii 

 Conybearii, Vermiceras, cc 

 Cooke, M. C, on name Dumortieria, 28(5 

 Coquand, see Bayle & Coquand 

 Coral bed, upper, 7 

 Coralline beds, date of, ccvi 

 Cordilleras, 148, 157 

 Cornbrash, 230 

 cornigera, Braunsina, Suppl., PI. 20, figs. 4-6; 



p.c 

 corn u, Harpoceras, 20; Hildoceras, lxxxv ; Hildo- 

 ceras (Ludwigia), 20 

 comu, Ludwigia, PI. 4, figs. 1, 2, see arcitenens, 



Ludwigella ; PI. 4, figs. 3, 4, see cornu, Lud- 



wigella ; p. 20, see spp. above 

 cornu, Ludwigia, 223. 301, lxxxv ; typical form of, 



65 



cornu, Ludwigella, PI. 4, figs. 3, 4; PI. A, fig. 6 ; 



p. 20 (Ludwigia cornu) ; Suppl., Figs. 48-50 



in text, p. lxxxv 

 Coronate, radical, 272 ; Ammonites, 454 

 Coronaten-scbiebten, 293 

 coronatus, Amaltheus, 287, 291 

 Coroniceras, 289, 290, cc, cci 

 Correlation, Bradford Abbas and Stroud, 7 ; of 



Oborne and Wyke, 9 ; Dundry and Dorset, 



63 ; Yorkshire, Northampton, Cotteswolds, 



Dorset- Somerset, 168; of deposits, ccvi 

 corrugata, Ludwigia, 375 

 corrugatum, Harpoceras, 302 

 Corton, strata of, ccvii 

 Gorton Downs, 19, 61, 62, 275 ; strata at, like 



Oolite Marl, Notgrove ; fossils of, not those 



of Oolite Marl, 9 

 cortonensis, Terebratula, 63 

 cosmia, Strophogyria, Suppl., Fig. 20 in text, p. 



lxiii ; p. lxii 

 Cosmoceras, 14, 270 ; garantianum, hollandse, 



niortensis, parkiusoni, regleyi, subfurcatum 

 Cosmogyria, p. lii ; cirrata, maggsi, obtusa, sp., 



subtabulata 

 Cosmogyria, from Ludwigia, lxix ; classification, 



cxcviii 

 Costa, iii ; see also costistria, crassicostate, densi- 



costate, parvicostate, paucicostate, radius, 



striicosta 

 Costa? connate (series), cxxxiv ; simple (series), 



cxxxiii 

 costata, Sonninia, PI. 74, fig. 1 ; PI. 75, figs. 1,2; 



Figs, in text, 6, p. 384 ; 32, p. 394 ; 58, p. 



443 ; pp. 338, 385, 395 

 Costata stock, 336 

 Costate and striate stages, xxxviii 

 Costate, Sonninia), 448 ; species, xxxvi 

 Costate stage, species, xxxvi ; examples of, 289 ; 



((Ecotraustes), cxcv 

 Costate (series of Dumortieria), clxxvi 

 Costate to Spissicostate (series of Dumortieria), 



clxxix 

 Costate to Striate (series of Dumortieria), clxxx 

 Costation, cc ; progressive decline of, lxxxi\ 

 Costi-stria, iii 

 costatum, Ancolioceras, PI. 7, fig, 7 ; PI. A, fig. 11 ; 



p. 29 (Lioceras ambiguum var. costatum) ; 



Suppl., PI. 17, fig. 30 ; p. xlviii 



