392 EMBALLONUEID.E. 



Upper incisors slender, very acutely pointed, with a second 

 external and much shorter cusp, the tooth on each side directed 

 forwards and inwards ; lower incisors trifid, placed across the 

 direction of the jaws, the two central incisors separated by a slight 

 interval. Pirst upper premolar minute, acutely pointed, in the 

 centre of the rather wide space between the canine and second pre- 

 molar ; iirst lower premolar about three fourths the size of the 

 second premolar. 



(For measurements see below.) 



Hah. Central and South America. 



According to the Prince of Neuwied, the type of this species was 

 found between the large leaves of the Cocoanut Palm {Cocos nuci- 

 fera) near the estuary of the Kio Pardo in Brazil. 



a. 



ad. sk. South America. Sir E. Belcher [0.]. 



b. $ ad., al. M. Lidth de Jeude [C.]. 



2. Diclidnnis scutatus. 



Diclidurus scutatus, Peters, MB. Akad. Berl. 1869, p. 400. 



When examining the collection in the Paris Museum, I unfortu- 

 nately overlooked the type of this species, which is described by Dr. 

 Peters as much smaller, but with a longer tibia and caloaneum, and 

 with a quite differently formed pouch in the interfemoral membrane. 

 The colour of the fur is similar, and, with the above-named ex- 

 ceptions, the measurements exhibit the same proportion. The 

 species must therefore be very closely allied. 



The following are the measurements of this species and of D. 

 alhus respectively : — 



B. scutatus. D. albus. 



Length, head and body 2-2 25 



„ tail 0-8 0-9 



„ head 0-8 



„ ear 0'7 



„ tragus 0"22 



„ forearm 20 2-4 



„ thumb 0-2 0-22 



„ third finger, metacarpal 1 '95 2'3 



1st phalanx 0-35 04 



„ 2nd „ 0-93 M 



„ fourth finger, metacarpal 1'5 1'8 



„ Istphalanx 04 0'55 



„ 2nd „ 0-35 0-4 



„ fifth finger, metacarpal 1'2 1'4 



Istphalanx 06 07 



„ 2nd „ 0-23 0-3 



„ tibia 0-9 0-75 



„ calcaneum 0'8 0'65 



„ foot 0-35 0-4 



Hah. South America. Type in the Paris Museum. 



