84 BULLETIN 43, UNITED STATES NATIONAL MUSEUM. 



third the length of the first eiidoturbinal phite. As seen from above, 

 the ectoturbinal is lodged in a concavity in the lateral surface of the 

 preceding plate. The first endoturbinal is produced as far as the first 

 premolar. The plate is of a pyriibrm figure as seen from above, and 

 presents a truncate apex. The portion in advance of the transverse 

 lamina is deeply concave beloM^ and overlies the maxilloturbinal. The 

 second endoturbinal is of a triangular figure with a rounded apex. It 

 appears to be lodged, when the parts are viewed superficially, on the 

 median surface of the endotiu-biual series. The third endoturbinal is 

 the smallest of the three, and is contiuous with the upper portion of the 

 first endoturbinal. 



Notes on the sl-eleton. — Atlas Avith two depressions in front. Scapula. 

 Superior vertebral angle on level with base of the coracoid, the end of 

 which is simi)le, not tapering. Humerus with trochlea axial, epicon- 

 dyle small, nodular, and i)laced in front of a deep fossa. Radius much 

 compressed laterally. The central articular groove at proximal end 

 narrow but deep, the median flange semicircular and Avithout facet in 

 front. Proximal rudiment of ulna filiform, free ;* distal rudiment a per- 

 forate quadrate plate. Of the proximal ends of the metacarpal bones, 

 the fonrth has the least motion and presents a deeply excavated i)roxi- 

 mal surface; the fifth has most motion and presents a flat proximal 

 surface. The third is slightly deflected toward the center of the manus. 

 The third, fourth, and filth metacarpal bones diminish slightly in length 

 in the order of the bones named. Occasionally the fourth is slightly 

 shorter than the fifth. 



Habitat. — V. gryphus appears to be an abundant sjiecies in the north- 

 ern and northeastern range of the United States and in the Missis- 

 sippi Valley as far west as the ninety-eighth degree of longitude, but 

 less abundant in the 31iddle and South Atlantic States. I have never 

 collected it near Philadelphia. According to J. B. Tyrrell it is found 

 in Canada east of the Rocky Mountains. The vespertilionine bats 

 from northwestern British America and Alaska are of this species, 

 modified, possibly, by breeding with northern forms of F.a/6c'.sce/*,9. At 

 least I can not otherwise determine them. See in this connection re- 

 marks, p. . Pedomorphic A'arieties straggle as far north as Hud- 

 son Bay. It appears to be a strictly pastoral species,! and is found 

 aggregated in large numbers in caves iu association with Adelonyc- 

 teris fuscus, N. humeralis, and V. earolhiensis. It is frequently mis- 

 taken for the species last named. Sometimes it is found clinging 

 together in clumps under the bark of decayed tree trunks. 



*The study of the proximal end of the ulna must he made by dissection. The 

 hones as usually prepared show none of the characters. The ulna cuds "free"; that 

 is to say, lies as a filament among the muscles of the forearm. 



tThe word "pastoral" is here used in contrast to "urbal." It is not collected in 

 bovisee either iu town or country, but iu trees £iud in cav^s, 



