ENUMERATION OF ANIMALS. 423 



enumerated in the Bibliography, and to fill up the other details given 

 in the following catalogue, it became necessary for me, in the absence 

 of scientific libraries or books in a provincial town and in a country 

 residence, every now and again to have recourse to the assistance 

 of zoological specialists in different parts of the three kingdoms. 

 To all of these gentlemen I am under obligations for the readiness 

 with which they consulted works of reference on my behalf. But 

 my acknowledgments are specially due to Prof. Alfred Newton, 

 of Cambridge ; Prof. Macalister, of Dublin ; and Dr. Buchanan 

 White, editor of the Scottish Naturalist, for the pains they took 

 in supplying me with as full information as was under the circum- 

 stances procurable. 



Among other advantages of such catalogues as the following is 

 this that they exhibit the number of animals whose specific 

 designations have been based wholly or partly on their mental 

 qualities. Illustrations are to be found in 



Canis sagax. A. agricola. 



C. latrans. Arvicola economica. 



Passer stultus. Formica indefessa. 



Megalopterus stolidus. Termes bellicosus. 



Lepus timidus. Eciton predator. 



Galeodes intrepida. Pheidole plagiaria. 



Macropodus, Machetes, and Birgus latro. 



Semipodius pugnax. Bufo obstetricans. 



Ursus ferox. Mimus polyglottus. 



Atta providens. 



Most or all of these specific designations based on psychical 

 peculiarities are at least quite as appropriate and descriptive as 

 the term sapiens applied to the single known representative of 

 the genus Homo. 



It is a pity that a much larger number of animal species have 

 not derived their distinctive appellations rather from marked 

 psychical diameters than from those that are obscure, variable and 

 physical. In other words mental features, powers or endowments, 

 might very appropriately form to a greater degree than at present 

 specific characters in zoological nomenclature and classification ; 

 mind, where it is conspicuously exhibited, might itself become or 

 furnish a zoological character in systematic diagnosis and arrange- 

 ment. 



