26 



[Jan. 3, 



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



mm. mm. mm. mm. mm. 



Sturaira 3 21 31 38 10 



Chilonycteris 1£ 15 17 40 12 



Carollia 5 20 32 26 9-12 



Vaiupyrus 16 41 53 105 12 



Lonchoglossa 3 19 32 S3 12 



Monophyllus 3 17 34 32 14 



Artibeus 4 21 39 51 18 



Brachyphylla 3 25 43 64 18 



Morinoops 3 16 35 50 19 



Phyllostoina 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 : 



Rhynchonycteris 5 16 25 40 9 



Cynopterusmarginatus 10 18 27 58 9 



Vespertilio murinus 2 11 31 59 10 



Epomophorus franqueti .... 13 21 39 83 11 



Rhinopoma 3 13 30 64 17 



Atalapha % 9 2G 37 15 



Molossus rufus % 5 35 46 30 



Noctilio 2 13 58 83 45 



Pceropus edwardsii 18 17 69 145 52 



Stated Meeting, January 3, 1890. 



Present, 10 members. 



President, Mr. Fraley, 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. Eev. John J. Keane and Hon. 



