REPTILIA. 175 
[Imperfect skeleton, wanting head.] Presented by T. Haw- 
kins, Esq. 
Plesiosaurus euryspondylus, H. G. Seeley, Index to Aves, ete., 
Woodw. Mus. (1869), pp. xviii, 41. Cambridge Greensand ; 
Cambridge. [Vertebrae. | 
P. ichthyospondylus, v. Cimoliosaurus bernard. 
P. macropterus, v. Kretmosaurus macropterus. 
P. megadeirus, vy. Cimoliosaurus trochanterius. 
P. microdeirus, H. G. Seeley, Index to Aves, etc., Woodw. Mus. 
(1869), pp. xviii, 44. Cambridge Greensand; Cambridge. 
[Portions of skeleton.] 
P. pachyomus, v. Cimoliosaurus bernardi, and G; planus. 
P. philarchus, v. Peloneustes philarchus. 
P. planus, v. Cimoliosaurus planus. 
P. platydeirus, H. G. Seeley, Index to Aves, ete., Woodw. Mus. 
(1869), pp. xvii, 41. Cambridge Greensand ; Cambridge. 
[ Vertebre. ] 
P. pecilospondylus, H. G. Seeley, Index to Aves, etc. Woodw. Mus. 
(1869), pp. xvii, 48. Cambridge Greensand ; Cambridge. 
[ Vertebree. | 
P. sterrodeirus, v. Peloneustes eequalis. 
P. winspitensis, vy. Cimoliosaurus portlandicus. 
P. sp., W. Keeping, Foss. Upware and Brickhill (1883), pl. 1, 
f.3.a,b, p. 78. Lower Greensand ; Brickhill. [Vertebra.] 
P. sp. (? neoccmiensis, Campiche), W. Keeping, Foss. Upware and 
Brickhill (1883), pl. i, f. 2 a, b, p. 78. Lower Greensand ; 
Upware. [Vertebra.] 
Pleurosternon oweni, H. G. Seeley, Index to Aves, etc., Woodw. 
Mus. (1869), pp. xix, 87. Purbeck Beds; Swanage. [Carapace.] 
P. sedgwicki, H. G. Seeley, Index to Aves, etc., Woodw. Mus. 
(1869), pp. xix, 86. Purbeck Beds ; Swanage. [Carapace.] 
P. typocardium, H. G. Seeley, Index to Aves, etc., Woodw. Mus. 
(1869), pp. xix, 87. Purbeck Beds; Swanage. [Carapace.] 
P. vansittarti, H. G. Seeley, Index to Aves, etc. Woodw. Mus. 
(1869), pp. xix, 86. Purbeck Beds ; Swanage. [Carapace. | 
