1902.] NATURAL SCIENCES OF PHILADELPHIA. 409 



Cranial measurements of type: Greatest length, 22.4; basal 

 length, 19.6; basilar length, 17.6; interorbital constriction, 5.6; 

 mastoid breadth, 10.8; mandible, 15; maxillary toothrow (exclu- 

 sive of incisors), 7.4; mandibular toothrow (exclusive of in- 

 cisors), 8. 



Specimens Examined. —Six, all from the type locality. 



Remarks. —Adults are very uniform in coloration, the five speci- 

 mens showing no variations worthy of note. A half -grown young 

 is dark sooty brown above, dull slaty below. The tricolored pat- 

 tern of the "hairs of the back is nearly as distinct as in the adults, 

 and much more so than in Hemidenn-L perspicillatmi. 



Brachyphylla nana sp. nov. 



2'ype.__Skull 1^0. 103,828, United States National Museum. 

 Collected at El Guama, Cuba, March 10, 1900, by William Palmer 

 and J. H. Riley. Original number, 108. 



C/iamc^ers.— External characters not known. Skull much smaller 

 than that of any other described member of the genus, its basal 

 length only 22 mm. 



Skull— In general form the skull closely resembles that of true 

 Brachyphylla caveriiarum from the island of St. Vincent, but the 

 interorbital region is less rounded and the interpterygoid fossa 

 extends forward to within 1 mm. of posterior outline of palate. 



yee«A.— The; only teeth preserved are the anterior maxillary 

 molars. These differ very conspicuously from the corresponding 

 teeth of B. caveriiarum in their much smaller size and in the rela- 

 tively greater breadth of the palatal side of the crown. 



3feasurements.— Basal length, 22 (28);^^ basilar length, 21.6 

 (25); median palatal length, 10.4 (14); zygomatic breadth, 14.6 

 (17.4) ; breadth of braiucase above roots of zygomata, 12 (13) ; 

 interorbital constriction, 6 (6.8); lachrymal breadth, 8.4 (9); 

 distance between outer edges of anterior upper molars, 9.8 (11); 

 distance between inner edges of anterior upper molars, 5 (5.6) ; 

 maxillary toothrow (alveoli, exclusive of incisors ), 9 (11); crown 

 of first upper molai, 3 x 2.6 (3.4 x 2.8). 

 Specimen Examined.— One, the type. 



Remarks.— The single skull on which this species is l)aso(l was 

 found in a pellet of the Cuban b arn owl. Th is an d other 

 ■ i« Measurementshi^'pareTiTh^ses areUiose of a topotype of Brachyphylla 

 cavernarum {^, No. 106,085). 



