CCXX11 



INFERIOR OOLITE AMMONITES 



crinita, Cotteswoldia, PI. 31, figs. 3, 4; p. 177 



(Grammoceras mactra) ; Suppl., Fig. Ill, p. 



clxv ; p. cxxxvii 

 Criteria of affinity, i 



Cruciform, arrangement of, lobes considered, 382 

 Crussol, lxxiii 

 Cucullsea, 48 



Cuniings, E. E., and Brachiopoda, cxcix 

 cuneatum, Deltotoceras, Suppl., PI. 16, figs. 7-9 ; 



p. cxix 

 Curioni, Ammonites, 84, 132, 138, 139 

 curva, Brodieia, Suppl., p. xxxii, see curvum, 



Brodieeras 

 curva, Hugia, Suppl., PI. 18, figs. 19-21 a ; PI. 



21, figs. 25 27; p. cxi 

 curvata, Fontannesia, PI. 47, figs. 15 ; PI. 65, 



figs. 6, 7 ; p. 262 (Dumortieria gramnio- 



ceroides) ; p. clxxxix 

 curvicostatum, Hyperlioceras, Suppl., PI. 16, figs. 



4-6 ; p. cxxiv 

 eurvifrons, Terebratula, different, in South of 



England and Cotteswolds, 9 

 curvum, Brodieeras, PI. 22, figs. 35, 36 ; Suppl., p. 



xxxii (Brodieia curva) 

 Cycle of Development, ccii 

 Cycloceras, 14, 127, clxix 

 Cycloceratidse, 13 

 cycloides, Ammonites, 115, 117 ; Harpoceras, 117 ; 



Hildoceras, 117 

 cycloides, Pcecilomorphus, PI. 22, figs. 1-22 ; PI. 



A, figs. 31, 32; p. 117 

 cycloides, Pceciloinorphus, table of dimensions, 



118; Phylloceras, 115, lit], 119 

 Cylicoceras, Suppl., p. xlix ; undatum 

 Cylicoceras, from Geyeria, 1 ; from Welschia, li ; 



classification, exeviii 

 cymatera, Sonninia, PI. 73, figs. 2, 3 ; PI. 100, 



figs. 5-7 ; pp. 332, 390, 420 

 Cymbites, cci ; globosus 

 cymbium, Ostrea, 258 

 cynocephala, llhynehonella, 8, 44, 40, 48, 52, 



164 

 Cypholioceras, Suppl., p. xliii ; opaliniforme, 



pigrum, plicatum, renovatum, vitiosum 

 C vpholioceras, xxxv ; history of, xxxiii, xliv ; 



geological position of, xliv ; from Lioceras, 



xxxiv; from Geyeria, 1 ; classification, exeviii 

 Cypricardia, 45 



Dactylioceras, 272 ; annulatum, crassum, holandrei 

 Damon, cxviii ; and Maggs' Collection, 247 

 Darell, Darell Stephens, change of surname, cxii ; 



and see Stephens, Darell 

 Darelleiuae, classification, exeviii 

 Darellella, Suppl., p. cvii ; recticostata 

 Darellella, from Reynesella, cix ; classification, 



exeviii 

 Darellia, Suppl., p. cxii; concinna, lsevis, polita, 



semicostata, toxeres 

 Darellia, from Toxolioceras, exxvi ; from Stokeia, 



exxviii ; classification, exeviii 

 Darellina, Suppl., p. cvi ; docilis, dorsetensis, 



planaris 

 Darellina, from Darellella, cvii; classification, 



exeviii 

 Davidson, Dr. T., 1 ; on Tereb. simplex, 8 

 Davidsoni, Perisphinctes, 10 ; descent of, 272 

 debile, Graphoceras., Suppl., PI. 20, figs. 22-24 ; 



p. xevi 

 decipiens, Brasilia, PI. 12, figs. 8, 9, p. 30 (Lio- 

 ceras decipiens) ; Suppl., PI. 11, fig. 35; 



Fig. 43 in text, p. lxxxii 

 decipiens, Lioceras, PL 12, figs. 8, 9, p. 30, see 



decipiens, Brasilia 

 decipiens, Lioceras, lxxxii, ciii, civ, cxiii 

 decipiens var. intermedium, Lioceras, PL 12, figs. 



2, 3, see intermedia, Reynesia ; PL 12, figs. 



4, 5, lepida, R. ; PL 12, Jig*. 6, 7, laxa, R. ; PL 



12, figs. 10, 11, semicostata, Darellia ; p. 33, 



see spp. above 

 decipiens var. simile, Lioceras, PL 16, figs. 1, 2, p. 



31, see similis, Brasilia 

 declinans, Dumortieria, PI. 40, figs. 10-12, p. 243 



(D. striatulocostata) ; Suppl., Fig. 171, p. 



exevi ; p. clxxvii 

 Decline (effects of), exxx ; progressive, lxxxix 

 decora, Sonninia, PI. 84, figs. 12-14, pp. 361, 387, 



412 

 decorata, Sonninia, PI. 84, figs. 7, 8, pp. 360, 387, 



412 

 decorum, Graphoceras?, PI. 8, figs. 3, 4, p. 56 



(Lioceras concavuni) ; Suppl., PI. 15, fig. 19 ; 



p. xcviii 

 Definition, note concerning, xciv 

 Definitions, generic, interpretation of, cciii 

 deflexum, Hyperlioceras, PI. 19, figs. 1, 2, p. 98 



(Hyperlioceras discoideum) ; p. exxii 



