INDEX 



ccli 



how divided, 316 ; costata stock, 336 ; magni- 

 spiuata stock, 341 ; biplicata stock, 344 ; 

 crassa stock, 347 ; submarginata stock, 328 ; 

 acantliodes stock, 331 ; and Dumortieria 

 grammoceroides, 339 ; spinous species dis- 

 tinguished, 349 ; subdecorata stock, 357 ; 

 omphalica stock, 362 ; quadrifida stock, 364; 

 paucinodata stock, 368 ; species of different 

 stocks, 372 ; revision, 379 ; and Hammato- 

 ceras, comparison of, 379 ; detailed classifica- 

 tion of, 392 ; species innominatse, 438 ; sum- 

 mary, 441 ; numerical details of, 441 ; skeleton 

 outlines of lobes (Table VIII), 443 ; remarks 

 on classification of, 444 ; analysis of species 

 of, according to ornament, 447 ; how to analyse 

 and identify species of, 448 ; further generic 

 division of, required, 450 ; characters of 

 different series in, 450 ; the species of Conca- 

 vum zone, all new, 451 ; tuberculate core of, 

 iv ; likeness to Fontannesia, clxxxvii ; classi- 

 fication, cxcviii 



Sonniniae, revision of, new spp. of, 379 ; outline 

 classification, 384-391 ; genealogical table, 

 445; divisions (ornament), 447; morphic 

 equivalents (Table X), 449 ; generic sub- 

 division possible, 450 ; migration of, 452 ; 

 doubtful occurrence of, in Murchisonoe zone 

 of Normandy, 452 ; extra-European spp. of, 

 453; dwarf, cxciii ; hemera, strata of, ccvii ; 

 sp. hemera, vi, ccv 



Sonninian Age, ccv 



Sonninince, 287, 293, 299, 302, 313, xiv; revision, 

 379 ; additions, cxcii ; origin of, 288 ; "-eologi- 

 cal position of, 292 ; literature on, 293 ; 

 classification, cxcviii 



South America, 258, clxx ; correspondence of 

 faunal sequence in Eui'ope and, 454 



South Cotteswolds, 163 



South Dorset, 324 



South Dorset coast, strata! succession, xxxv 



South Kensington Museum, 17 



South Petherton, 183, 184 



South Somerset, 61 



Sowerby, J., & J. D. C, 17, 56, 63, 149, 173, 174, 

 vii, viii, xxv, lxx, lxxxvi, cxxxi 



Sowerbyi, Ammonites, 9, 13, 63, 315 ; group of, and 

 Amaltheus, 130 ; remarks on the type speci- 

 men, 342 ; confusion concerning name of, 342 



Sowerbyi group, 143 



Sowerbyi, Hammatoceras, 13, 128, 287, 313, 342 



Sowerbyi, Harpoceras, 341, 342 



*Sowerbyi, Sonninia, PI. 49, figs. 10-13 



Sowerbyi, Sonninia, 110, 315, 450 



Sowerbyi insignoides, Ammonites, 315 



Sowerbyi ovalis, Ammonites, 315 



Sowerbyi-zone, 4, 6, 8, 9, 63, 291; at Halfway 



House, thickness of, fossils of , 10 ; suggestions 



concerning, 292 ; and Concavum zone, 342 

 sp., Canavarina?, PI. 13, figs. 4, 5, p. 35 (Lioceras 



opalinum) ; Suppl., Fig. 133, p. clxvii ; p. 



clxiii 

 sp., Cosmogyria, Suppl., PI. 14, figs. 11, 12; p. 



liv 

 sp., Cotteswoldia, PI. 31, figs. 13, 14, p. 179 



(Grammoceras subserrodens) ; Suppl., Fig. 



110, p. Clxv ; p. CXXXV 

 sp. A., Dorsetensia, PL 52, figs. 1-3, p. 304, see 



Lennieri, D. 

 sp. B., Dorsetensia, PI. 52, figs. 4-7, p. 304 

 sp., Dorsetensia, cxcii 

 *sp., Dumortieria, Fig. 3, p. 187 [Foreign] 

 sp., Dumortieria, PL 37, figs. 18, 19, p. 245, see 



costula, D. 

 sp., Dumortieria, PI. 45, figs. 15, 16, p. 241 (D. 



Levesquei) ; p. clxxvi 

 sp., Dumortieria, PI. 44, figs. 4 6, p. 255 (D. 



Moorei) ; Suppl., Fig. 182, p. cxcvi ; p. clxxxiii 

 sp., Dumortieria, PI. 43, figs. 1-4, p. 251 (Dum. 



radians) ; p. clxxxiv 

 sp., Dumortieria, PI. 42, figs. 1, 2 (Dum. radians) 



p. clxxx 

 sp., Dumortieria, clxxv 

 sp., Grammoceras, PL 32, figs. 11, 12, p. 191, see 



arcuata, Walkeria 

 sp. A., Grammoceras, PI. 34, fig, 12, p. 169 (G. 



toarcense) ; Suppl., p. cxxxi 

 sp., Grammoceras, p. cxxxix 

 sp., Harpoceras, xcii 

 sp., Haugia, Suppl., p. xxix 

 sp., Hyattina, PL 4, fig. 7, p. 22 (Lioceras brad- 



fordense) ; Suppl., PI. 17, fig. 29 ; p. cxxx 

 sp., Lioceras, PL 14, figs. 7-9 ; see renovatum, 



Cypholioceras 

 sp., Lioceras, PI. 14, fig. 12, p. 53 (L. opalinum 



var. comptum) ; Suppl., PI. 10, fig. 9 ; p. xlii 

 sp., Lioceras, xlvi 



KK 



