INDEX 



CCXXVll 



Faculiformes [ribs], 294 

 Falcate (series), cxi, cxxvii 

 Falcate to biarcuate (series), cvii 

 falcidiscus, Pseudolioceras, Suppl., p. clx 

 falcifer, Ammonites, 12, 138, 158 ; type of Harpo- 



ceras, xxxiii 

 Falciferen, 127 

 Falciferi, 12, 13, 38 

 falciferum, Harpoceras, 38, 84, 127, 165, 217,223, 



294; Harpoceras, hemera, ccv ; zone, 131, 



165, 223, 282, 291 

 Falciform, sculpture, 14 ; ribs, 73, 294 

 Falciformes [ribs], 294 

 falcigera, (Edania, Suppl., PI. 21, figs. 1-3 a, p. 



cviii ; Fig. 69, p. clxv 

 Falciradiate (series), clvi 

 falcodiscus, Ammonites, 85, clx 

 falcofila, Ammonites, 241, clxxiv 

 falcofila, Dumortieria, Suppl., Fig. 164, p. clxxiv 

 falcofila macer, Ammonites, clxxiv 

 falconla-sparcicosta, Ammonites, 237, 239, clxxiii- 



iv 

 fallaciosum, Grammoceras, PL 33, figs. 17, 18, p. 



204, see subfallaciosum, Pseudogrammoceras 

 fallaciosum, Grammoceras, 45, 156, 165, 204, 



cxlv, cxlvii, cxlviii, cxlix 

 Fallaciosum-group, 163, 200 ; how to obtain good 



examples of; peculiarities of ornament in, 



201 

 fallaciosum, Harpoceras, cxlvii, cxlviii, cxlix 

 fallaciosum, Pseudogrammoceras, Suppl., Fig. 150, 



p. clii 

 fallaciosum var. Bingmanni, Grammoceras, PI. 34, 



figs. 3-5, p. 206, see bingmanni, Pseudogram- 

 moceras 

 fallaciosum var. Cotteswoldise, Grammoceras, PL 



34, figs. 10, 11 ; PL 35, fig. 7, see expe- 



ditum, Pseudogrammoceras ; PL 35, figs. 4- 



6, cotteswoldise, P. ; p. 206, see spp. above 

 fallaciosum var. Muelleri, Harpoceras, cxlix 

 fallaciosum var. Struckmanni, Grammoceras,}}. 206, 



see struckmanni, Pseudogrammoceras 

 fallaciosus, Ammonites, 144 

 fallax, Ammonites, descent of, 129 

 fallax, Depaoceras, PI. 14, figs. 10, 11, p. 79 (Lio- 



ceras fallax) ; PI. 21, figs. 7-9, p. 104 (Lud- 



wigia Lucyi) ; Suppl., PI. 16, figs. 1-3; Figs. 



34-36 in text, p. lxxviii 



fallax, Erycites, 301 ; Hammatoceras, 140 



fallax, Lioceras, PL 14, figs. 10, 11, p. 79, see 

 fallax, Depaoceras 



fallax, Lioceras, p. lxxviii 



Family, 14, cxcviii 



fasciata, Geyeria, Suppl., PI. 6, figs. 7 10, p. 1 



fascigera, Haugia, PI. 25, fig. 7, p. 156 (Haugia 

 Eseri) ; Suppl., p. xxix 



fastigata, Braunsina, Suppl., PI. 20, figs. 1-3, 

 p. c 



Fastigate, 411, iv ; see also concavif astigate, 

 convexifastigate, planifastigate 



Fastigation of periphery, in relation to develop- 

 ment, lxvii 



Fauna, Ammonite, independent of lithic condi- 

 tions, xvi ; of hemera, extension of, xvi ; rich- 

 ness of, cxcix 



Favre, on classification of Ammonites, 11 



Ferruginous beds, 7, 43 



Feuguerolles, lv, lvii, lix, lxxii, clxxi 



fidicula, Pholadomya, 46, 48 



fimbriatum, Lytoceras, cc 



fissilobata, Sonninia, 328 



fissilobata-ovalis horizon, date of, ccvii 



Fissilobati, 287 



flaccidum, Graphoceras, PI. 8, figs. 7, 8, p. 56 

 (Lioceras concavum) ; Suppl., Fig. 60 in text, 

 p. xcviii 



Flexicostate (series), Fontannesia, clxxxix 



flexilis, Ludwigella, Suppl., PI. 19, figs. 28-30, p. 

 lxxxviii 



Flexiradiate (Pseudogrammoceras series), cxliv 



Flexiradius, iii 



floccosa, Paquieria, Suppl., PI. 10, figs. 20 24, p. 

 lxvii 



fluens, Pleydellia, PI. 31, figs. 1, 2, p. 176 (Gram- 

 moceras mactra) ; Suppl., Fig. 114, p. clxv ; 

 p. cxxxvii 



fluitans, Ammonites, 190 



fluitans, Grammoceras, PL 30, figs. 1, 2, p. 190, 

 see folleata, Canavarina 



fluitans, Grammoceras, 222, cxli ; Harpoceras, 

 190, 191 



folleata, Canavarina, PI. 30, figs. 1, 2, p. 190 

 (Grammoceras fluitans) ; Suppl., Fig. 128, 

 p. clxvii ; p. cxli 



Fontannes, F., and Fontannesia, clxxxvii ; see also 

 Dumortier & Fontannes 



GG 



