34 



BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY. 



femoral membrane, and very small second lower premolar, as compared with 

 M. megalotis, with which it is found associated in Brazil. A specimen in alcohol, 

 No. 4153, 9> fr' om Lagoa Sauta, Brazil, measures as follows: head and body, 

 47; tail, 9.3; ear, 19.6; forearm, 34.4; thumb, 7.6 ; 3d digit, metacarpal, 27 ; 

 1st phalanx, 10.5 ; 2d phalanx, 12 ; 3d phalanx, 9.8 ; 4th digit, metacarpal, 28 ; 

 1st phalanx, 8; 2d phalanx, 10; 5th digit, metacarpal, 28.5; 1st phalanx, 8.5; 

 2d phalanx, 7.7; tibia, 13; foot, 8.5; calcar, 7.5. Skull: greatest length, 18 ; 

 basal length, 14 ; interorbital constriction, 4 ; zygomatic breadth, 8 ; mastoid 

 breadth, 8.6; mandible, 11 ; maxillary tooth row (exclusive of incisors), 6; man- 

 dibular tooth row (exclusive of incisors), 7. A young female, No. 4944, from 

 Pernambuco, Brazil, still retains both upper and lower milk canines and the upper 

 milk incisors, in addition to the permanent teeth. 



Phyllostomus hastatus (Pallas). 



The geographic variation of this species in the matter of size has led to the 

 recognition of at least two races in northern South America and Panama. I 

 therefore append the measurements of three Brazilian specimens, No. 3983 from 

 Rio Janeiro, Nos. 4080, 4085, from Rio das Velhas, as an aid to the further 

 definition of the precise range of the typical subspecies. 



MEASUREMENTS OF PHYLLOSTOMUS HASTATUS. 



The skull of No. 3983 measures : greatest length, 39.4 ; basal length, 31 ; 

 intero'bital constriction, 7-3 ; zygomatic breadth, 21.5 ; mastoid breadth, 21 ; 

 mandible, 26 ; maxillary tooth row (exclusive of incisors), 18.6 ; mandibular 

 tooth row (exclusive of incisors), 15.4. 



Phyllostomus hastatus panamensis J. A. Allen. 



I have referred to this race five well-made skins with skulls from Boruca, Costa 

 Rica. Their measurements correspond fairly well with those given by Dr. J. A. 

 Allen for the type, from Chiriqui, Panama. 



