42 DUBLIN NATURAL HISTORY SOCIETY. 



Professor John R. Kinahan, F. L. S., read the following paper — 



ADDENDUM TO MAMMALOGIA HIBERNICA CHEIROPTERA. 



I TAKE this opportunity of presenting to your Society a specimen of the 

 hairj-armedhat {Scotophihis Zeisleri), captured some twelve years since 

 at Belvoir Pai"k, near Belfast, and also of completing my former paper 

 on the Irish Bats, by giving a detailed description of this species, which 

 was then omitted, and the first record of which occurs in a paper of mine 

 contributed this month to the Belfast Natural Historj'' and Philosophical 

 Society, through the Idndness of some of whose members I first became 

 aware of the occurrence of the species in Ireland. 



ILairy -armed Bat {Scotophilus Leisleri) ; Geof. 



Dentition: |, f, -*^; total, ||. 



Ears two-thirds length of head, deeply notched at base; tragus, 

 apex expanded, rounded, blunt, sides slightly excavate, nearly one-half 

 the length of ear ; fore- arm with a broad, hairy band beneath ; fur, dark, 

 duskyish-red above, lighter beneath. 



Dimensions. 



Inches. 

 Length of head and body, .... 2*9 nearly. 



,, head, 0-9 nearly. 



taU, 1-75 



,, ear, 0-5 



,, tragus, 0-2 



,, fore arm, 1'75 



,, spread of wings, . . . .11-75 



Tragus narrow at base, inner edge excavate, outer edge slightly ex- 

 cavate. Ears rouaded externally, deeply notched at base, next notch a 

 lobe, a small separate lobe at junction with mouth, base of ear continued 

 towards and nearly attaining angle of mouth, internally rounded, lobed. 

 Fur very long, soft, and silky ; on back, dark-bluish at base, duskyish 

 red at tips ; belly, hairs dark reddish-brown at base, grayish-white at 

 tips ; membranes dark ; beneath a band of long, grayish-yeUowish hair, 

 0-4 inch in breadth, extending from flanks over second finger, and to 

 margin of third; interfemoral, hairy above and below; interfemoi'al 

 bands distinctly marked, few in number (9-9) ; nose broad and flattened, 

 eyes hid in fur. t 



Additional measurements : Length of exserted portion of tail, 1-75 

 inch; breadth of ears, 0*37 inch; humerus, 0-75 inch; cubitus, 1-75 

 inch; poUex, 0-25 inch; second finger, 1-9 inch; third finger, 2-5 

 inches; fourth finger, 3 inches; fifth finger, 2*9 inches; femur, 0-5 

 inch; leg, 0*7 inch nearly; toes, to end of nail, 0*375 inch; hallux, 

 0-6 inch. 



Habitat unknown. 



Localities : Belvoir Park, county of Down ; Belfast, county of An- 

 trim, July, 1858. 



1 



