V 
PREFACE. 
The list of Reptiles has been chiefly derived from Prof. Owen^s 
Reports to the British Association, the illustrations of which are 
nearly ready for publication. 
In the class Crustacea* a great deficiency will be evident in con- 
sequence of no descriptions having appeared of the new species, 
although between twenty and thirty from the London Clay are 
known in the cabinet of Mr. Bowerbank, and many others from 
the Chalk and Oolite in other collections. 
Only a few British fossil species of Insecta have been noticed : 
the recent researches of the Rev. W. Brodie and Mr. Strickland in 
the Wealden and Lias have materially increased our knowledge of 
these interesting fossils, but the specific characters have not yet 
been determined. 
In the present Catalogue a tabular form has been adopted for 
the facility it affords of general reference ; the genera and species 
being arranged in alphabetical order, and according to the zoologi- 
cal divisions to which they are properly to be referred ; and refer- 
ence is made as well to those works, whether British or foreign, in 
which the several species have been figured or described, as to the 
authorities upon which the Author has relied in assigning to them 
the places which they occupy in the Catalogue ; the range or posi- 
tion of each species, and one or more of the localities in which it 
has been met with, are also stated. 
The Author cannot conclude this short Preface without offering 
his sincere acknowledgments to the President (R. I. Murchison, 
Esq.) and Council of the Geological Society of London, who, by 
the award of the proceeds of the Wollaston FundL have sanctioned 
the utility of a work of this nature, which the Author has endea- 
voured to render as complete as possible ; and not the least are his 
thanks also due to numerous scientific friends for many valuable 
suggestions during its progress through the press, more especially 
to Mr. R. C. Austen, Mr. D. Sharpe, Mr. S. V. Wood, Mr. 
G. B. Sowerby, and Mr. J. W. Flower, who have enriched this 
Catalogue by some useful corrections, as well as by the addition of 
many important facts. 
London, July 1843. 
* In the highly interesting and elaborate memoir of Mr. J. Prestwich on the 
Coal-field of Coalbrook Dale (Geol. Trans, vol. v.), a few singular forms belonging 
to this family have been described, as well as some new species of Testacea. 
t Anniversary Address by R. I. Murchison, Esq., F.R.S., Pres. Geol. Soc., 
Feb. 1842. (Geol. Proc. hi. p. 635.) 
