SUPPLEMENT (No. II) 



TO THE 



MONOGRAPH 



OF 



THE FOSSIL REPTILIA 



OP THE 



CRETACEOUS FORMATIONS. 



Order— SAUROPTERYGIA, Owen. 



Genus — Plesiosaurus, Conybeare. 



In former Monographs and works are given descriptions of the following species 

 of Plesiosaurus from Cretaceous deposits : 



Plesiosaurus constrictus, Owen. 'Dixon's Geology and Fossils of the Tertiary 



and Cretaceous Formations of Sussex/ 4to, 



1850, p. 398, pi. xxxvii, figs. 6 and 7. 

 From Steyning Chalk-pit, Sussex. 



Plesiosaurus Bernardi, Owen. Op. cit., p. 396, pi. xxxvii, figs. 8, 9. From 



the Upper Chalk, Houghton Pit, near 

 Arundel, Sussex. 



Plesiosaurus pachyomus, Owen. Monograph, Palaeontographical Society, 4to, 



1851, p. 64, tabs, xx, xxi. From the Upper 

 Green-sand at Reach, near Cambridge. 



Plesiosaurus latispinus, Owen. 'Descriptive Catalogue of the Fossil Remains 



of Reptilia and Pisces in the Museum of 

 the Royal College of Surgeons of England,' 

 4to, 1854, p. 63, No. 251. 



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