Edward Wilson — Type Fossils in the Bristol Museum. 365 



come from " Saltford, near Bath," but in an old Bristol Museum 

 Catalogue it is given as from " Banwell, Somerset." 



Ichthyosaurus latimanus, R. Owen, Rep. Brit. Assoc, for 1839 (1840), p. 123 [? two 

 skeletons]. L. Lias, Banwell, Somerset. 



Note. — According to Lydekker, loc. cit., this type of Owen's was 

 founded upon two specimens in the Bristol Museum, one of which 

 is an example of Ich. communis, Conybeare, whilst the other is the 

 type of Ich. C'onybeari, Lydekker, vide supra. 



Ichthyosaurus P thyreospondyhis, R. Owen, Rep. Brit. Assoc, for 1839 (1840), p. 124; 

 J. Phillips, Geol. of Oxford, p 307; ? Ich. thyreospondylus. Phillips (ex Owen) ; 

 P. Lydekker, Cat. Foss. Rept. B.M. pt. ii. p. 34 [17 detached vertebra?]. 

 Form, and loc. doubtful. 



Note. — In an old Bristol Museum Catalogue these vertebras are 

 stated to have come from the " Lower Lias of Lyme Regis," but 

 Phillips, loc. cit., suggests that the type-specimens were derived from 

 the " Kimmeridge Clay of Weymouth," where this form is not un- 

 common. This latter view seems probable, and it may be mentioned 

 that there is an entire absence of the usual characteristic Liassic 

 matrix adhering to these vertebrae. 



Palceosaurus cylindrodon, H. Riley and S. Stutchbury. Trans. Geol. Soc. ser. ii. vol. v. 



p. 352, pi. xxix. f . 4 ; R. Owen. Palaeontology, 2nd ed. p. 276 (P. cylindricum, 



Proc. Geol. Soc. vol. ii. p. 397); T. H. Huxley, Q.J. G.S. vol. xxvi. p. 43, 



pt. iii. f. 3 [fragmentary tooth]. U. Trias (dolomitic conglom.), Redland, Bristol. 

 Palaosaurus platyodon, H. Riley and S. Stutchbury, Trans. Geol. Soc. ser. ii. vol. v. 



p. 352, pi. xxix. f. 5, and Proc. Geol. Soc. vol. ii. p. 397 ; Thecodontosaurus, 



T. H. Huxley, Q. J. G. S. vol. xxvi. p. 43, pi. iii. fs. 1, 2, 5-8 ; R. Lydekker, 



Cat. Foss. Rept. B.M. pt. i. p. 174, f. 20 [tooth]. U. Trias (dolom. conglom.), 



Redland. Bristol. 

 Plesiosaurus brachycephalus, R. Owen, Rep. Brit. Assoc, for 1839 (1840), p. 69; syn. 



(adult form) of PI. macrocephalus, Owen (ex Conybeare), R. Lydekker, Cat. 



Foss. Rept. B.M. pt. ii. p. 266 [skeleton]. L. Lias. Bitton, Gloucestershire. 

 Plesiosaurus C'onybeari, VV. J. Sollas, Q. J. Geol. Soc. vol. xxxvii. p. 440, pi. xxiii. and 



pi. xxiv. [skeleton, with casts of dorsal vertebrae and skull]. L. Lias, 



Charmouth. 

 Plesiosaums costatus, R. Owen, Rep. Brit. Assoc, for 1839 (1840), p. 80 ; R. Lydekker, 



Cat. Foss. Rept. B.M. pt. ii. p. 282 [anterior cervical vertebrae]. ? Rhostic 



(bone bed), Aust Cliff. 

 Plesiosaurus meyacephalus, S. Stutchbury, Q. J. Geol. Soc, vol. ii. p. 411, pi. xviii. ; 



W. J. Sollas, Q.J. G.S. vol. xxxvii. p. 472; Thaumatosaurus, R. Lydekker, 



Cat. Foss. Rept. B.M. pt. ii. p. 166 [skeleton]. L. Lias, Street, Somerset. 

 Plesiosaurus rugosus, R. Owen, Rep. Brit. Assoc, for 1839(1840), p. 82; Eretmosaurus, 



R. Lydekker, Cat. Foss. Rept. B.M. pt. ii. p. 249 [vertebras]. Rhaatic or 



?"L. Lias," Aust Cliff. 

 Plesiosaurus subtrigonus, R. Owen, Rep. Brit. Assoc, for 1839 (1840), p. 77 [vertebras]. 



L. Lias, Weston, near Bath. 

 Thecodontosaurus antiquus, J. Morris. Cat. Brit. Foss. 1st ed. p. 211, 2nd ed. p. 354; 



R. Owen, Palaeontology, 2nd ed. p. 275 ; R. Lydekker, Cat. Foss. Rept. B.M. 



pt. i. p. 175 ; Thecodontosaurus, sp., H. Riley and S. Stutchbury, Trans. Geol. 



Soc. ser. ii. vol. v. p. 349, pi. xxix. fs. 1-3; T. H. Huxley, Q J. G.S. vol. xxvi. 



p. 43, pi. iii. fs. 1, 2 [left ramus of mandible with teeth]. U. Trias (dolom. 



conglom.), Redland, Bristol. 



Note. — The types of the genera Thecodontosaurus and Paloeosaurus 

 in this Museum were founded on teeth, but associated with these teeth 

 are numerous bones — vertebra\ ribs, pelvic, and limb-bones — many 

 of which were described and figured by Riley and Stutchbury, and 

 a few by Huxley. In two cases in the Bristol Museum, with 

 many other undescribed bones, most if not all of these will be 

 found; I have identified the following; Riley and Stutch., op. cit., 



