A MONOGRAPH OF THE ]5AT8 OF NORTH AMERICA. 



101 



suhulatus. I now believe tbeiu to be members of tbe same groui) with 

 the next variety {q. v.) of T'. nitidus. 



Var. (b). Vespertilio nitidiis ciliolabruni (Meiriaiiij. (Plate xii.) 



VespertUiocilioluhnun Merriaui, I'roc Hiol. 8oc. A\'asliiiigtt»ii, \\., 1886-'88, 1. 



The following is an abridgment of tlie original descrii^tioii of V. 

 ciliolahrum: 



Ear as long as the head; calcar occupies one-half the free margin of 

 the interfemoral membrane; post calcar lobe large; apici-calcaral lobe 

 developed; Internal basal lobe slightly rounded; outer margin auricle 

 sharply emarginated (concave) for about one-third of its entire length; 

 first scallop at first abruptly convex, then straight ; external basal lobe 

 (reflexed lobe) distinct. Tragus as in all western forms. Thumb very 

 small, considerably shorter than foot. Foot small. Half of last ver- 

 tebrae free. 



Fur long and soft; basal portion dusky, apical portion varying from 

 whitish or yellowish white to isabella-brown (tawny-isabella intheNew 

 Mexico specimens), which in some individuals is nearly as dark as in V. 

 subulatHs; the colored apical portion varies in extent from less than 

 one-third to more than one-half the length of the hairs. 



Dr. Merriam believes T^. cilUolabrum to be allied to V. nitidus. The 

 ear is larger and in other proportions, and in color it is distinct. 



Htthitat. — Trego County, Kans., and subsequently collected in Grant 

 County, southwest corner of New Mexico. Mr, A. B. Baker the dis- 

 coverer states that it was found in bluffs or canyons near the town of 

 Banner and well hidden away in clefts in the chalk rocks. Others oc- 

 cupied abandoned swallows' nests which were inaccessible; but they 

 were easily dislodged by means of stones. Mr. Baker has informed 

 me that the locality for this subspecies no longer exists. 



' Type. 



In specimen No. 27061, Death Valley, California, tlic thumb is 3'"'" 

 post-calcaral well developed, no apici-calcaral lobe; the tail is as lon| 



