26 



[Jan. 3, 



ii in iv Forearm. Difter'e bet. in & iv 



wim, tnvn, mm. TUTU. uim. 



Sturnira 3 21 31 38 10 



Chilonycteris 1 15 17 40 12 



Carollia 5 20 32 26 9-12 



Vampyrus 16 41 53 105 12 



Lonchoglossa 3 19 32 33 12 



Monophyllus 3 17 34 32 14 



Artibeus 4 21 39 51 18 



Brachyphylla 3 25 43 64 18 



Mormoops 3 16 35 50 19 



Phyllostoma 4 29 62 81 45 



The study of measurements has given valuable results in the study ot 

 the human cranium and has enabled anatomists to come to definite con- 

 clusions respecting the validity of characters even when derived from 

 scanty and imperfect material. 



No reason can be urged why similar methods may not prove acceptable 

 in describing a new species of mammal. 



Extended observations on a number of examples of allied species 

 enhance the value of those upon which it is proposed to announce a new 

 one. 



The following table includes the formulae in families other than the Phyllostomidse : 



9 

 9 



10 

 11 

 17 

 15 

 30 

 45 

 52 



Stated Meeting, January 3, 1890. 



Present, 10 members. 

 President, Mr. FKALEY, in the Chair. 



Correspondence was submitted as follows : 



Letters acknowledging election to membership from Mr. A, 

 Sydney Biddle and Dr. George Friebis, Philadelphia ; Dr. C. 

 C. Abbott, Trenton, N". J. ; Kt. Rev. John J. Keane and Hon, 



