A MONOGRAPH OF THE BATS OF NORTH AMERICA. 



131 



Meas nrenun is — C on t i 1 1 u o d . 

 Third digit : Millimeters. 



Length of third metacarpal boiu^ 26^ 



Length of tirst phahiux 6 



Length of second phalanx 9 



Fourth digit: 



Length of fourth metacarpal hone 25 



Length of lirst phalanx 7 



Length of second phalanx 6 



Fifth digit: 



Length of fifth meta carpal bone 25 



Length of first phalanx 5 



Length of second phalanx 4 



Length of head 13 



Height of ear 10 



Height of tragus 



Length of thigh 11^ 



Length of tibia 10 



Length of foot ih 



Length of tail 28" 



Measurement-s from first edition of Monograph. 



Current 

 niunber. 



5406 

 6015 

 5510 



From tip 

 of nose 

 to tail. 



Inches. 

 1.4 

 1.4 

 1.9 



Length Length of 

 of tail, forearm 



Inches. 

 1.0 



Inches. 

 1.1 

 1.1 

 1.4 



Length 

 of tibia. 



Inches. 

 0.5 

 0.5 

 0.4 



Length of 

 longest 

 finger. 



Inches. 

 1.8 

 1.6 

 2.0 



Length of I Height 

 thumb. of ear. 



Inches. 

 0.1 

 0. U 

 O.li 



Inches. 

 0.3 

 0.5i 

 0.4 



Height of Expanse, 

 tragus. -^^i'""'"=- 



Inches. 

 0. U 

 0. U 

 0. l" 



Inches. 

 7.0 



List of specimens. 



Genu.s NYCTICEJUS Rafiuesque. 



Xyeticejus Rafinesque, Journal de Physi(iue, xxxviii, 1819, 417. 

 Atdhipha Cones and Yarrow, Wheeler's Expcd., Zool., 1875-'87. 



DuKjnosis, — Bats with small tragus having a uniform convex outer 

 border. Large head fold to auricle, scallops not revolute. Chin plate 

 and upper lip at muzzle well detined, the former not triangular. Tip of 

 coracoid i^rocess broader than base and deflected toward the vertebral 

 border of the scapula. A single conical upper incisor on each side not 

 tonehiug canine. Face naked. The manal formula is as follows: 



3 111 



Dental formula. — Molars „, premolars .^, canines ,, incisors ., X 2^30. 



NycHcejus has the dental formula of Dasyptents. It is distinguished 

 from this genus by the fact of the axis of the paracone of the upper 

 premolar, if produced, intersecting the protocone near its anterior 

 border, and by the upper incisor being separated by an interval from 

 the canine. 



Milinietres. 



Second interspace 1^ 



Tiiird int('rsi)ace 8-94- 



Fourth intcr.spacc 2()-27i^ 



Forearm 18-20 



