178 BULLETIN 43, UNITED STATES NATIONAL MUSEUM. 



nasal aperature with stout blunt process. The infraorbital canal back 

 of til e second premolar; the distance from the canal to the anterior 

 nasal aperture equals the width of the base of the canine tooth. The 

 hard palate does not extend beyond the last molar. The lower jaw with 

 semilunar notch equally the distance from the angle to the condyle; 

 the angle exceeds in length the mesohiteral diameter of the condyle. 



Measurements of skitll. 



P.perotie j^ „,^„^^ 



Greatest length 



Lensith ofbniin case 



Width of liraiii case (bimastoid) 



Width of bniin case (bizygoniatic) 



Widtli of brain case (bipruneephalio). 

 Length of face 



The ectoturbinal is compressed from side to side and is one-half the 

 length of the first eudoturbiual. The first eudoturbinal is acuminate, 

 as it is seen from the median surface, the portion projecting in advance 

 of the third endoturbinnl being slightly convex inferiorly. The third 

 eudoturbinal is received in a depression on the lateral surface of the 

 first, the second being absent. It in turn receives the fourth. Both 

 these turbinals, as seen in situ, are longer than wide. 



Maxillary teeth. — Intdsor almost touches canine, yet reaches middle 

 line and is contigious with its fellow at the base. The simple, cone-like 

 crown is thence deflected outward, causing the crowns of the two teeth 

 to slightly diverge from one another. Canine simple without groove; 

 the cingulum slightly produced backward. The small first premolar 

 lies directly on the outer face of the interval between the canine and 

 the second premolar. The second premolar with prominent paracone 

 and large heel-like projection. The molars quite as in Nyctinomus, 

 other than that the rudiment of the second Y of the third molar is a 

 mere tubercle. 



Mandihnlar teeth. — The incisors are compressed and bilobed. The 

 premolars are slightly crowded. The commissure at the lingual base 

 of the heel is deeply emarginate in the middle. The heel of the third 

 molar is somewhat compressed from without inward, the lingual 

 bordcT" being much the higher. 



Notes on the skeleton. — Axis with long transverse process, which bears 

 a foramen to the outside of the foramen for the vertebral artery. Keel 

 on the ventral surface of the centrum ending in a tubercle. Atlas with 

 tubercle on anterior arc; large spine on anterior border of wide trans- 

 verse process. Scapula coracoid defle cted posteriorly, narrowed at end. 



Humerus. — The height of the outer tuberosity correlates with the 

 depth of the fossa in front of the head. The depression on the humerus, 

 inner side, near elbow, equals one-half diameter of shaft. Trochlear 

 surfaces at elbow deep, well defined. 



Radius. — The depression on the radius less than that on the humerus. 



