REPTILIA. 239 



ICHTHYOSAURUS {continued)— 



lonchiodon. R. Owen, Rep. Brit. Assoc, 1839 (1840), p. 116, and 

 Rept. Liassic Form., pt. iii (Pal. Soc, 1881), p. 117, pi. xxiv, 

 f. 6, pi. xxxi, f. 4-7, and Odontography (1841) p. 277, pi. lxxiii, 

 f. 2 ; J. Morris, Cat. Brit. Foss., 1854, p. 349 ; R. Lydekker, 

 Cat. Foss. Rept. B. M., pt. ii, 1889, p. 92. 

 Oligostinus, T. Hawkins, Sea Dragons, 1840, pi. ii. 

 LOC. L. Lias ; Lyme Regis. [Skeleton ; Brit. Mus.] 



longifrons, Owen. v. Ichthyosaurus zetlandicus. 



longhnaniiSf Owen. v. Ichthyosaurus breviceps. 



longipennis, Mantell. v. Ichthyosaurus acutirostris. 



longirostris, Owen. v. Ichthyosaurus acutirostris and Ichthyo- 

 saurus latifrons. 



megalodeirus, H. G. Seeley, Index to Aves, etc., Woodwardian 

 Mus., pp. xxi, 1 10. [? Ophthalmosaurus.~\ 

 LOC. Oxford Clay ; Woodstone Lodge, near Peterborough. 

 [Parts of skeleton ; Woodwardian Mus.] 



ovalis, J. Phillips, Geol. Oxford, 187 1, p. 339; R. Lydekker, Cat, 

 Foss. Rept. B. M., pt. ii, 1889, p. 29, woodcut 15. 

 LOC. Kim. Clay ; Kimeridge, Portland, Weymouth, Swindon, 

 and Shotover. [Vertebrae ; Oxford Mus.] 



paramekostinus, Hawkins, v. Ichthyosaurus intermedius. 



platymerus, H. G. Seeley, Index to Aves, etc., Woodwardian 

 Mus., 1869, p. xvii (name only). 

 LOC. Cambridge Greensand. [Woodwardian Mus.] 



platyodon, W. D. Conybeare, Trans. Geol. Soc. [2] vol. i, pt. i 

 (1822), p. 108, pi. xv, f. 7, pi. xvi, f. 1-7 ; W. Buckland, Geol. 

 and Mineral., ed. 2, 1837, p. 20, pi. vii (Pandpl. x); R. Owen. 

 Odontography (1841), p. 276, pi. lxxiii, f. 3, 6, and Rept, 

 Liassic Form., pt. iii (Pal. Soc, 1881), p. 115, pi. xxiv, f. 4, 

 pi. xxxi, f. 1-3; G. A. Mantell, Petrifactions, 1851, p. 380; 

 J. Morris, Cat. Brit. Foss., 1854, p. 349 ; S. Haughton, 

 Manual of Geology, 1865, p. 272, woodcut 36; V. Kiprijanov, 

 Mem. Acad. Imp. Sci. St. Petersbourg, vol. xxviii, art. 8 

 (1881), p. 102, pi. xviii {pars) ; R. Lydekker, Cat. Foss. Rept. 

 B. M., pt. ii, 1889, p. 94, woodcut 34. 



[Regarded as the type of a distinct genus, Temnodontosaurus, by R. Lydekker, 

 in Nicholson and Lydekker, Manual Palasont. , ed. 3 (1889), vol. ii, p. xi.] 



Ichthyosaurus immanis [C. Koenig], Syn. Contents Brit. Mus., 

 ed. 17, 1820, p. 62 (the earliest specific name given to 

 Ichthyosaurian remains, but undefined). [Limb-bones ; 

 Brit. Mus., no. R. 809.] 



Ichthyosaurus chiroligostinus, T. Hawkins, Mem. Ichthyosauri, 

 1834, pis. iii, v, and Sea Dragons, 1840, pis. iii, v. [Skeleton 

 and portion of skull ; Brit. Mus.] 



Oiigostinus, T. Hawkins, ibid., 1840, pi. vi, f. 1-3. [Jaws.] 



