240 BRITISH FOSSIL VERTEBRATA. 
ICHTHYOSAURWS platyodon (continued)— 
Ichthyosaurus giganteus, Leach, quoted by R. Owen, Rep. Brit. 
Assoc., 1839 (1840), p. 112. [Apparently MS. name. ] 
‘Fossil remains, E. Home, Phil. Trans., 1814, p. 571, pls. 
xvii-xx. [Skull, etc. ; Brit. Mus.] 
Loc. L. Lias ; Gloucester, Lyme Regis, Somersetshire, War- 
wickshire, and Yorkshire. [Tooth ; Geol. Soc. London.] 
polyostinus, Hawkins. =I. chiropolyostinus. 
strongylostinus, Hawkins. v. Ichthyosaurus tenuirostris. 
tenuirostris, W. D. Conybeare, Trans. Geol. Soc. [2] vol. i, 
pt. i (1822), p. 108, pl. xv, f. 10; W. Buckland, Geol. and 
Mineral., ed. 2, 1837, p. 170, pl. ix; R. Owen, Rep. Brit. 
Assoc., 1839 (1840), p. 117, and Odontography (1841), p. 277, 
pl. Ixxiii, f. 5, and Rept. Liassic Form., pt. 111 (Pal. Soc., 
E881), p. 122,'pl. xxiv, # 8, pl. xxv, f. 3, pl. xxxil, fi —gi5, Gr 
J. Morris, Cat. Brit. Foss., 1854, p. 349; J. F. Blake, in 
Tate and Blake, Yorkshire Lias, 1876, p. 254; R. Lydekker, 
Cat. Foss. Rept. B. M., pt. ii, 1889, p. 83, woodcuts 25, 26. 
Ichthyosaurus grandipes, D. Sharpe, Proc. Geol. Soc., vol. i 
(1830), p. 222. [Imperfect skeleton. ] 
Ichthyosaurus chirostrongulostinus, T. Hawkins, Mem. Ichthyo- 
sauri, 1834, pl. xvi, and Sea Dragons, 1840, pls. xiii, xvi. 
[Skull and portions of skeleton ; Brit. Mus.] 
Ichthyosaurus strongylostinus, T. Hawkins, Sea Dragons, 1840, 
pls. xii, xv, and Mem. Ichthyosauri, 1834, pl. xv. [Imperfect 
skeletons ; Brit. Mus. ] 
Loc. L. Lias ; Barrow-on-Soar, Bristol, Glastonbury, Keinton, 
Keynsham, Lyme Regis, Stratford-on-Avon, Street, and 
Tewkesbury. U. Lias; Whitby. [Tooth; Geol. Soc. London.] 
thyreospondylus, R. Owen, Rep. Brit. Assoc., 1839(1840), p.124; 
J. Morris, Cat. Brit. Foss., 1854, p. 350; ?J. Phillips, Geol. Ox- 
ford, 1871, pp. 307, 337, woodcuts cxxix—cxxxi; ? R. Lydekker, 
Cat. Foss. Kept. B. M., pt. ii, 1889, p. 34. 
? Ichthyosaurus brachyspondylus, R. Owen, Rept. Liassic Form., 
pt. iii (Pal. Soc., 1881), p. 127, pl. xxxiii, f. 3-6. [Vertebrz.] 
Loc. Unknown. [Vertebre; Bristol Mus.] (? Oxford Clay ; 
Buckingham and Whittlesea. Kim. Clay ; Devizes, Nune- 
ham, Portland, Shotover, Weymouth, Wheatley, and Winslow. 
(Vertebre ; Oxford Mus. and Brit. Mus.)] 
trigonodon, C. Theodori, Gelehrte Anz. k. bay. Akad. Wiss., vol. 
xvi, 1843, p.906 ; R. Lydekker, Cat. Foss. Rept. B. M., pt. ii, 
1889, p. 105. 
? Ichthyosaurus crassimanus, R. Owen, Rep. Yorksh. Phil. Soc., 
1858, p. 9, footnote (name only); J. Phillips, Geol. York- 
shire, ed. 3, 1875, p. 272 (name only); J. F. Blake, in Tate 
and Blake, Yorkshire Lias, 1876, p. 253, pl.i, f.9. [Skeleton; 
York Mus. ] 
Loc. U. Lias; Kingsthorpe and Lofthouse. [Portions of head ; 
Brit. Mus.) 
