nWCEEDJXC.S OF THE XATIOX.iL MlsElM. 



Til 



1895. 



order, while iu Desmodus the iiietaciirpal is nearly as long as the 

 ])halanges aud furnished with a tactile pad at base; a similar but 

 smaller pad is seen on the toot. The teeth in Dipliylla are more numer- 

 ous than in Desmodus, but are less powerful. The projection of the 

 lower jaw beyond the u])i)cr is less marhed in Diphi/Ua. The claws, on 

 the other hand, are more curved and prehensile than in that oenns. 

 It is correct to assume that in Diphylla the thumb and foot are emi)l<.yed 

 in a manner like the rest of the order, but that iu Desmodus the use to 

 which the jnirts are put is distinctive; and further, that Diphylla, while 

 known to take blood from animals, can make but a weak attack as com- 

 pared to Desmodus. This is due not only to the smaller teeth, but to 

 the lower jaw being less protruding and the animal not being able to 

 breathe therefore so freely when feeding as is the case with Desmodus. 



In the phyllum of the (^hiroptera, Diphylla and Desmodus are on a 

 branch of the Stenodermata, Diphylla being near the base of the branch, 

 while Desmodus arises from near the free end. 



While these pages were going through the press, I wrote to Dr. Paul 

 Matschie of the Konigliche Museum fiir Naturkunde, Berlin, request- 

 ing that he examine the specimen of Diphylla in that institution, espe- 

 cially as to the number of the upper incisors. He courtecmsly responded, 

 and I am glad to reaftirm the accura(!y of the description and enumera- 

 tion as given by Dobson. Under all the circumstances Diphylla is 

 correctly described by ^^pix (with the exception of the number of the 

 molars), and therefore the Berlin form is either anomalous as to the 

 number of the upper incisons or is a type of a separate genus. It is 

 most likely the former. I have in my possession a specimen of Chilo- 

 nycteris madcayl which has but two incisors in the upper jaw. If, 

 however, comparisons should not sustain this reference, the name 

 Hwmatouyeferis may be assigned the form described by Dobson. 



DimeiDiions of two specimens of Diphylla ecaudata. 



MeaRiirenients. 



Cat. No. 

 U.S.N.M. 

 i 6990. 



Leustb of liead ■ • •■ - ;■ '; "V ' 



Head and body (from crown of head to bast' ot tail) . 



Length of forearm 



First difiit: 



Length of first metacarpal bone 



Length of phalanges 



Second digit: 



Lengtii of second metacarpal l)ono .. 



Length of tirst plialanx 



Third digit: 



Length of third metacarpal bone 



Lengtii of first phalanx 



Lengtii of siiond plialanx 



Length of third phalanx 



Fourth digit: 



Length of fouith metacarpal liono 



Length of first phalanx 



Length of .second phalanx 



Fifth digit: 



Length of fifth metacarpal bone 



Length of first ])halanx 



Length of second i)lialaiix 



Heiglit of ear 



Height of tragus 



Lengtii of tliigh -. 



Length of tibia 



Length of foot 



Cat. No. 



TT.S.N.M. 



9440. 



4 

 9 



45 



7 



51 

 11 

 29 



15 



51 

 10 



