VESPERTILIO.] MAMMALIA PRIMATES. 27 



arm one inch three lines; of the thumb two lines and a half: extent of 

 wing eight inches six lines. 



DESCRIPT. Head small and flattish; muzzle short ; nose swollen, with 

 a shallow cleft in the middle ; face much more hairy than in the last 

 species, with a few scattered hairs on the nose and chin, longer than the 

 rest, intermixed ; a row of fine, soft, close-set hairs on the upper lip forming 

 a conspicuous moustache; a similar row crossing the forehead: ears 

 shorter than the head, moderately broad, oblong, rounded at the ex- 

 tremities, curving outwards and rather deeply notched on their external 

 margins; tragus half or rather more than half the length of the auricle, 

 lanceolate, perfectly straight, narrowing regularly from the base upwards 

 to the tip which terminates in a sharp point: thumb moderate: hind 

 feet much smaller than in the last species : interfemoral with the spur of 

 about the same length : tail longer than the fore-arm, exserted for about 

 one line. Fur long, thick and woolly; hair dusky, approaching to black, 

 throughout the greater part of its length, the extreme tips being reddish 

 brown on the upper parts and ash-gray beneath : ears, flying and inter- 

 femoral membranes dusky ; this last sometimes transversely marked on 

 its under surface with numerous white ciliated lines. 



This species occurs, though rarely, in houses in Cambridgeshire. I 

 have also received specimens from Milton Park in Northamptonshire. 

 Mr Yarrell has others which were taken at Colchester in the caverns 

 under the castle. Said to frequent the neighbourhood of water, and to 

 retire into hollow trees and houses. 



(2. PLECOTUS, Geoff.) 



36. V. auritus, Linn. (Greater Long-eared Bat) 

 Ears more than double the length of the head ; tragus oval- 

 lanceolate : fur brownish gray on the upper parts ; paler 

 beneath. 



V. auritus, Desm. Mammal, p. 144. Long-eared Bat, Penn. Brit. 

 Zool. vol. i. p. 147. pi. 13. no. 40. Shaw, Gen. Zool. vol. i. 

 p. 123. pi. 40. 



DIMENS. Length of the head and body one inch ten lines; of the 

 head eight lines ; of the tail one inch eight lines ; of the ears one inch 

 five lines ; of the tragus seven lines ; breadth of the ears nine lines ; of 

 the tragus two lines and a half; length of the fore-arm one inch five 

 lines ; of the thumb two lines and three quarters : extent of wing ten 

 inches two lines. 



DESCRIPT. Head and face flattened ; muzzle somewhat swollen about 

 the nose ; nostrils with their anterior and inner edges tumid, elongated 

 posteriorly into a sort of cul de sac : eyes small : ears extremely large, 

 more than twice the length of the head, oblong-oval, thin, and semi- 

 transparent; the inner margin presenting a broad longitudinal fold, 

 which doubles back nearly at right angles to the rest of the auricle and 

 is ciliated with hair along its external and internal edges; near the base 

 of this fold is a small projecting lobe, also ciliated; tragus long, oval-lan- 

 ceolate, with the outer margin somewhat sinuous, the inner one straight : 

 ears united over the head to the height of one line and a half; extending 

 round at the base to the corners of the mouth : flying and interfemoral 

 membranes broad and ample: tail longer than the fore-arm, the tip 

 obtuse, protruding to the extent of three quarters of a line : forehead, and 

 anterior surface of the connecting membrane of the ears, hairy ; posterior 



