77 



This species, wliich is rather larger than Mus musculus, was pre- 

 sented to the Zoological Society by E. W. A. Drummond Hay, Esq., 

 Corr. Mem., after whom I have taken the liberty of naming it. 



Mirs Alleni. Mus uuribus parvulis, cavdd corpore cum capite, 

 longiore, corpore suprd nigrescenti-fusco, subtiis cinereo ; pedibus 

 obscuris. 



unc. lin. 

 Longitudo ab apice rostri ad caudse basin. ... 1 9j 



caudiE 1 11 



ab apice rostri ad basin auris .... 07 



tarsi digitorumque O 7į 



auris „ . O 3 



Hab. Fernando Po. 



This species is less than the harvest mouse {Mus niessorius), and 

 of a deeper colour than the common mouse (Mus musculus), being 

 in fact almost black. The ears are smaller in proportion, and more 

 distinctly clothed -vvith hairs. The tail is very sparingly fumished 

 with minute hairs. The tarsi are covered ■with blackish hairs above; 

 the toes are dirty ^vhite. 



I have named the species after Lieut. W. AUen, R.N., Corr. Mera. 

 by whom it was discovered and presented to the Zoological Societj'. 



Mus Abbottii. Mus auribus mediocribus, caudd corpore cum 

 capite longiore : corpore suprd intense fusco, subtus canesce7ite ; 

 pedibus obscuris. 



unc. lin. 

 Longitudo ab apice rostri ad caudse basin. ... 1 6 



caudcs 1 11 



ab apice rostri ad basin auris .... O 6į 



■ tarsi digitorumque O 1^ 



auris O 4 



Hah. Trebizond. 



This species is less than the harvest mouse {Mus messorius), and 

 of a deeper colour than the Mus musculus, in which respects it agrees 

 •vvith Mus Alleni ; from this, however, it may be distinguished by the 

 tail being longer in proportion, the ears larger, and the tarsi more 

 slender. It -vvas presented to the Zoological Society by Keith E. 

 Abbott, Esq., Corr. Mem., after ^vhom it has been named. 



Mr. Gould then continued the exhibition of Mr. Darwin's Birds, 

 a series of Tvhich ■vvere upon the table. One only among them was 

 considered new, a species belonging to the genus Pyrgita from the 

 island of St. lago. Mr. Gould characterized it under the name of 



Pyrgita Iagoensis, Pyr. summo capite, et maculd parvd gulari 

 intense nigrescenti-fuscis, strigd superciliari, colio, humeris dor- 

 sogue intensė castaneis, liujus plumis strigd fuscd cetitrali nota- 

 tis į alis cauddąue brunneis, tectrieibus alarum minoribus albis, 



