54 Rev. L. Jenyns on the Distinctive Characters 



species during a long space of time that it remained by me 

 preserved in spirits. It was not till very lately, when I was 

 induced to give the matter a more close examination, that I 

 discovered a well-marked difference between them, and such as, 

 in my opinion, could hardly be looked upon as the result of 

 immaturity alone. This difference, which resides for the most 

 part in the colour and in the relative no less than in the absolute 

 dimensions of the several parts, I shall now endeavour to point 

 out ; affixing, in the first instance, such characters to each spe- 

 cies respectively, as may best serve to discriminate it from the 

 other. Reserving the established name of auritus for the larger 

 and more common sort, I propose to distinguish the new species 

 by that of brevimanus, in respect of one of its leading peculiari- 

 ties, to be hereafter noticed. 



Plecotus. Geoff., Desm. 



1. P. auritus. Greater or Common Long-eared Bat. 



P. vellere fusco-griseo, subtils aliquant^ pallidiori ; 

 auriculis oblongis, capite plus dupkS longiori- 

 bus ; trago ovato-lanceolato ; caud^ elongate, 

 antibrachium longitudine superanti, apice ob- 

 tusiusculo. 



Tab. I. Fig. 1. 

 Vespertilio auritus. Geoff. Ann. Mus. d'Hist. Nat. 

 torn. viii. p. 197. sp. 7- Desm. Nouv. Diction. 

 d'Hist. Nat. 2de edit. torn. xxxv. p. 478. Mam- 

 mal. {Encycl. Method.) p. 144. sp. 223. 



Dimensions. 



