﻿XXIV INTRODUCTION. 



the Upper Silurian and Old Red Sandstone of Herefordshire, 

 bequeathed to the Trustees, 1874. 



Peach Collection.. — A series of fossil fishes from the Lower Old 

 Red Sandstone, chiefly of Caithness, collected by the late Mr. Charles 

 W. Peach, A.L.S., obtained by purchase, 1870. 



Whincopp Collection. — Fossils from the Pliocene Crags of Suffolk 

 and Norfolk, collected by the late Mr. W. "Whincopp, of Woodbridge, 

 purchased through Mr. E. Charlesworth. 



It may be added that a few of the type specimens of Ichthyo- 

 dorulites from the Carboniferous Limestone, formerly in the Collec- 

 tion of the Earl of Enniskillen, were lost in transit immediately 

 before the acquisition of this Collection by the Museum. These 

 specimens are noted in the Catalogue as " olim Enniskillen Col- 

 lection." 



Supplement. 



On account of the rapid progress of researches in Fossil Ichthyo- 

 logy at the present time, it seems advisable to defer the issue of any 

 Supplement to this Catalogue until its completion. In regard 

 to Part I., we would thus only add that a recent discovery (Proc. 

 Zool. Soc. 1889, p. 450) suggests that the so-called Squatina 

 crassidens is the trunk of SclerorJiynchus atavus ; while an important 

 Permian genus and species, Diclielodus acutus (C. Giebel, Zeitschr. 

 gesammte Naturw. vol. ix. 1857, p. 121, pi. iv.), is unfortunately 

 overlooked, both in this Catalogue and apparently in all the 

 synoptical accounts of the Cochliodontidaa hitherto published. 



