celii 



INFERIOR OOLITE AMMONITES 



sp., Ludwigia, PL 23, figs. 2-4, p. 107, see sp., 

 Witchellia ; PI. 23, figs. 9, 10, p. 107, see 

 Witchelli, Brodiceras 

 sp., Ludwigia, xxxiii 



sp. A., Platygraphoceras, PI. 15. figs. 9, 10, p. 76 

 (Lioceras apertum) ; Suppl, Fig. 56 in text, 

 p. xciv 

 sp. A., Pleydellia, PI. 30, figs. 11, 12, p. 198 

 (Grammoceras subcomptum) ; Suppl., Fig. 

 118, p. clxvii ; p. cxxxviii 

 sp. B., Pleydellia, PI. 31, figs. 7 9, p. 179 (Gram- 

 moceras subserrodens) ; Suppl., Fig. 120, p. 

 clxvii ; p. cxxxix 

 sp., Pseudogrammoceras, Suppl., p. clii 

 sp., Pseudogrammoceras?, PI. 29, figs. 6, 7, p. 182 

 (Grammoceras doemtense) ; Suppl., Fig. 153, 

 p. cliv 

 *sp., Pseudographoceras ?, Suppl., p. xci [Foreign] 

 sp., Pseudographoceras, xcii 

 sp., Sonninia, PI. 72, figs. 1, 2, p. 439 ; PI. 79, figs. 

 7, 8, p, 439 ; PI. 89, figs. 9, 10, p. 439 ; PI. 67 

 figs. 1, 2, p. 438 (S. dominans) ; PI. 103, fig. 

 24 (S. aft", dominans) ; PL 67, figs. 3, 5 ; PI. 

 103, fig. 20, p. 438 ; PI. 70, fig. 4, p. 439 (S. 

 simplex) ; PI. 95, figs. 9, 10, p. 440; PL 97, 

 fig. 5, p. 440 ; PL 103, fig. 19, p. 440 

 sp. Sonninia, PI. 22, fig. 34 ■ PL 23, figs. 7, 8, 

 see aff. Buckmanni, S. ; PI. 23, figs. S, 6, see 

 dundriensis, Sonninia ; PI. 85, figs. 7, 8, see 

 obtusiformis ?, S. ; PL 78, figs. 6-9 ; PL 88, 

 fig. 4 ; see sub irregularis, S. 

 sp., Sonninia, cxciii 



sp., Walkeria, PL 30, fig. 10, p. 199 (Grammo- 

 ceras lotbaringicum) ; Suppl., Fig. 124, p 

 clxvii ; p. cxl 

 sp., Witchellia, PL 23, figs. 2-4, p. 107 (Ludwigia 



sp.) ; Suppl., p. cxciii 

 sparsicosta, Dumortieria, PL 45, figs. 17-20, p. 239 

 Specific characters of Lioceras, xxxvi 

 Specific distinction, cxcix 

 Specific descriptions, interpretation of, cciii 

 Specific development, and difference in description, 



xciv 

 Species, additional, clxi 

 Species, new, protests against, cause of trouble, 



379 

 Sphaeroceras, 140, ccii ; brongniarti, gervillii, 

 wrighti 



Sphseroceratoid, ccii 



sphseroidalis, Terebratula, 5 



Spina, iii 



*spinatum, Paltopleuroceras, PL 49, fig. 7, p. 295 



8pinatilm, Pleuroceras, PL 49, fig. 7, see spinatum, 



Paltopleuroceras 

 spinatum, Pleuroceras, 241, 287, 291, 295 

 Spinatum zone, 133, 163, 283, 291 

 spinea, Sonninia, PL 86, figs. 4-6; Figs, in text, 

 12, p. 386 ; 38, p. 406 ; 64, p. 443 ; pp. 387, 

 405 

 Spines, 405 ; see also bulla, nodus, nonsepti- 

 tuberculate, papilla, septituberculate, tubercu- 

 late, spina ; hollow as compared to solid, 314 

 strongly marked ribs homologous to, 345 

 aborted, 342 ; furcation of, note on, 378 

 how to preserve, 413 

 Spinicostae, 357 

 spinicostata, Sonninia, PL 73, figs. 4 6 ; pp. 337, 



387, 405 

 Spinicostate, 405 



spinifera, Sonninia, PL 50, figs. 14, 15 ; PL 74, 

 figs. 4-6 (S. spinigera); PL 100, figs. 1-4; 

 pp. 335, 390, 418 

 spinigera, Sonninia, PL 74, figs. 4-6, see spinifera, 



S. 

 spinosa, Khynchonella, 165 

 spinosa, Sonninia, PL 81, figs. 7-9; pp. 365, 384 

 Spinous, 405 

 Spiral angle, 135, 137 

 Spirula, 454, 455 



Spissicostate (series of Dumortieria), clxxix 

 Spissicostation, clxxii 

 Sports, 289 



Spontaneous variation, 289 

 Stage of atavic senility, 357 



Stage, Aalenian, auageneti ccostate, arietan, Bajo- 

 cian.Bathonian, bispinous,catagenetic costate, 

 globose, goniatite, grammoceratan, lioceratan, 

 multispinous, nodate, parvituberculate, pauci- 

 costate, phylogerontic, postnodate, renovate, 

 smooth-evolute, striate, Toarcian, tuberculate, 

 unispinous 

 Stages, ccv; omission of, from ontogenetic record, 



289 ; dissimilar, elimination of, 290 

 Stahl, 241, 242 

 Stanley, 279 

 Standish Beacon, xxxiii, xliv 



