A MONOGRAPH OF THE BATS OF NOKTII AMERICA. 191 



I. 



Prince Maximillian von Wied — Veizeich. beobach. Siiugethiere in 

 Nord Amerika, 18()2, 19.* 



FespertiHo brcvirostris. — Description: Head very short; snout broad, and but little 

 produced; ear tolerably hif^li, rather elliptical, the anterior border somewhat 

 rounded, the outer nearly straii^ht, under the tip slij^htly eniarginated ; trapjns rather 

 small, nearly lancet-shaped; the fur about the head -very plentiful, so that tin; eyes 

 are entirely hidden. 



Dentition. — The specimen of this bat is lost, so I can not therefore furnish the dcm- 

 tition. 



The expansion of the wings rather small. Thumbs long and small, with greatly 

 curved nails. Tail somewhat long, eight or nine joints lying on the outer half of 

 the fur of the interfemoral membrane, the tip, however, is one and a half to two 

 lines long, with the free points exserted; the five hind toes are long, the nails weak, 

 and sharply curved; calcaneum rather long; fur tliick about the belly, mouse-like, 

 that of the back longer; wing membranes near the body are somewhat furred, 



Coloration. — Expansion of wing membranes and ears are dark brown; upper por 

 tion of the body dark yellowish-brown, the hair on the outer half fallow yellowish- 

 brown, dark gray at the roots; under portion whitish yellow-gray. 



Measurements. — Entire length, 3 inches; expanse of wing membrane, 9 inches 4 

 lines; height of ears on the upper side 5.V lines; length of the exposed portion of the 

 tragus, 1^ lines ; the tail is free from the fur about 1 inch 5 lines ; length of calca- 

 neum, 5 lines. 



I obtained this bat at Freiburg, Pa., about the latter part of July. It flies about 

 rather early in the morning. We have observed that this bat resembles the other 

 species closely, but it is readily distinguished by the shortness of the head, as the 

 name given to it implies. 



J. 



Etienne Geoffroy St. Hilaire. Annales du Museum D'Histoire 

 Naturelle, Paris, viii, 1806, p. 204. 



Vespertilio albescens. — Le vespertillon poudre a I'oreille haute do 14 millimetres et de 

 meme forme que celle du V. tres vein ; son oreillon est de memo subule, et son pelage 

 noiratreen dessus et brun-obscur en dessous: il paroit commo poudre do blanc sous 

 le ventre, parce que les pointes de'chaque poll sont de cette couleur. La teinte blanche 

 gagne de plus en plus en arriere. Ce vespertilion est la chauve-souris douzieimo ou 

 la chauve-souris brune-obscurede M. d'Azzara. II eu rapporte ainsi les dimensions: 

 longuer totale 80 millimetres; de la ([ueue, 33, de I'envergure, 235. 



[No locality is given but the statement is made that the specimen was procured by 

 M. d'Azzara and an inference can be drawn from this fact that the type of V. albes- 

 cens in South America.] 



K. 



DoBSON.— Annals and Magazine of Natural History (188G) xviii, 124. 



Vesperugo Merriami. — The following is an abstract of Mr. Dobson's original ar- 

 ticle. V. merriami Dobsou (Ann. and Mag., N. H., 1886, xviii, 124), outer margin of 

 earless deeply emarginate than in V. pipistrellus, projecting part of the lower half 

 outer margin folded backward; tragus broad, outer side upper half oven convex 

 even to broad tip. Internal margin concave, at base of outer margin a longitudi- 

 nally directed lappet is seen; post calcaneal lobule shallow, extreme tip of tail 

 alone exsert. Color, pale yellowish brown on both surfaces, paler lieneath, basal half 

 or more of the hairs dusky. 



* Translation in "Monograph of Bats of North America," Allen, 1864. 



