INDEX 



ccxlvii 



*rad!ans, Grammoceras, fig. 3, p>- 187 ; see sp. 



Dumortieria. 

 radians, G-ranimoceras, 12, 45, 46, 143 

 radians, Harpoceras, 170, 189, 204, 205, cxlvii, 



cxlviii, clii 

 *radians, Nautilus, fig. 2, p. 187 1 seo radians, 



Dumortieria 

 radians, Nautilus, 186, 188, 248 

 radians amalthei, Ammonites, 189 

 radians compressus, Ammonites, 143, 155, 188, 



189, 190, vii 

 radians costula, Ammonites, 188, 237, 238 

 radians depressus, Ammonites, 170, 174, 188, 190, 



205, 248, cxxxii, cxlvii 

 radians gigas, Ammonites, 190, 205, vii 

 radians numismalis, Ammonites, 189 

 radians quadratus, Ammonites, 190, 201, 203 

 radians, var. exigua, Dumortieria, PI. 43, fiijs. 



11, 12, see exigua, D. ; PL 44, figs. 1-3, lata, 



D. ; p. 252, see spp. above 

 radians, var. exigua, Dumortieria, clxxxiii 

 Radiate, see radius ; also anguli-, biarci, falci-, 



flexi-, gammi-, prorsi-, recti-, rursi-, subfalci-, 



torti-, versi-, v-scripti-radiate 

 Radicals, of Ammonite branches, 270 

 Radii, bow used, 57 ; sigmoidal, transitional, 



straight, 112 ; annular, subannular, 267 

 radiosa, Dumortieria, PI. 30, fig. 18, see sub- 



fasciata, D. ; PI. 42, fig. 13-15 ; PI. 43, 



figs. 5-7, see diphyes, D. ; p. 253, see spp. 



above 

 radiosa, Dumortieria, clxxx, clxxxi ; Mascke on, 



clxxx 

 radiosa, var. gundershofensis, Dumortieria, PI. 45, 



figs. 13, 14, see inclusa, D. ; p. 254, see in- 



clusa, D., subfasciata, D. 

 radiosa var. gundershofensis, Dumortieria, clxxx, 



clxxxi 

 radiosus, Ammonites, 248, 253, clxxviii, clxxix, 



clxxx ; Mascke on, clxxx 

 radiosum, Harpoceras, 253 

 Radius, 57, iii ; see also anguliradius, costa, 



costistria, flexiradius, prorsiradius, recti- 



radius, rivrsiradius, stria, strii-costa, vcrsi- 



radius 

 Ragstones, Middle, Lower, Upper, ccix 

 Ramesveram, 454 

 Ramsay, Sir A. C, on Wotton-under-Edge, 49 



Ramsayi, Trigonia, 44 



Recession of inner margin, 36 



reslinans, Sonninia, PI. 49, figs. 16, 17 ; PI. 65, 



figs. 3, 4 (S. crassispinata) ; PI. 98, fig. 7 ; 



PI. 103, fig. 21 ; pp. 390, 421 

 Reclined ribs, 280 

 recticostata, Darellella, Suppl, PL 17, figs. 10-12, 



p. cvii 

 Rectiradiate (Pseudogrammoceras), clii; (series 



of Dumortieria), clxxii 

 Rectiradius, iii 



Recurved bifurcate ribbing, 124 

 Red Beds, date of, ccvi 

 Reduced figures, need for care in comparison with 



those of natural size, 333 

 reflua, Crickia, Suppl, PI. 11, figs. 16-18 ; Fig. in 



text, 29, p. lxxiii 

 reformata, Sonninia, PI. 89, figs. 6-8; pp. 391, 



434 

 regale, Pseudogrammoceras, Suppl., Fig. 134, p. 



clxvii ; Fig. 138, p. cxlvi ; p. cxlv 

 Regleyi, Ammonites, 273, 283 ; Cosmoceras, 



273 

 Regleyi, Tmetoceras, PI. 48, figs. 8-10, p. 273 (T. 



scissum) ; Suppl., p. clxxi 

 Regulari-ornate, iv, viii 

 regularis, Dumortieria, PI. 41, figs. 4-6, p. 248 



(Dura, radians) ; Suppl., Fig. 174, p. cxcvi ; 



p. clxxviii 

 regularis, Sonninia, PI. 64, figs. 1-3 (S. margi- 



nata) ; PI. 96, figs. 3-5 ; pp. 385, 395 

 Reinecke, 35, 53, 186, 188, 196, 237, 238, 248, 



249, 250, xxxiv, xxxvi, xl, xli, xliii, cxlviii, 



clxxv; collection, 187; specimens, xl 

 renovata, Sonninia, PI. 93, figs. 1-6; Figs, in 



text, 28, p. 591 ; 54, p. 430 ; 80, p. 443 ; p. 



433 

 renovata, Sonninia, cc 

 Renovate, series, 453 ; Sonninise, 448 ; species, 



xxxvi, xlvi ; stage, species, xlii 

 renovatum, Cypholioceras, PL 14, figs. 7-9, p. 53 



(Lioceras, sp.) ; Suppl., PL 10, fig. 5 ; p. 



xlvi 

 replicatum, Pseudolioceras, PL 20, figs. 9, 10, p. 



87 (P. Beyrichi) ; Suppl., Fig. 161, p. clxvii ; 



p. clx 

 Representation, morphic, cciii 

 Resume of genera, 122-125 



