The differences mentioned above are of the magnitude of those that ordinarily separate subspecies of a single species rather than two species. Miller (1902:392-393), in the original description of _floridanus_, noted that the differences between it and _intermedius_ were slight and remarked (p. 393): "Indeed, it is probable that it intergrades with the Texas animal." Lowery (1936:17) also has suggested that intergradation might occur between _intermedius_ and _floridanus_ "in southwestern Louisiana or eastern Texas"; later (1943:223-224) he pointed out that specimens from Baton Rouge, Louisiana, averaged larger in cranial dimensions than typical _floridanus_ and again mentioned the possibility of intergradation between the two kinds. Sanborn (1954:25-26) touched obliquely on the problem when he wrote: "In Florida, _Dasypterus intermedius_ is referred to as a Florida yellow bat (_Dasypterus floridanus_)." Handley (1960:478) wrote that certain morphological similarities suggested "gene flow" between the two kinds. Specimens examined from Louisiana resemble _floridanus_ from Georgia and Florida to the eastward in external dimensions. Some of those specimens resemble _floridanus_ in size of skull, but two skulls from Louisiana are inseparable from those of topotypes of _intermedius_. The upper parts of specimens from Louisiana are generally like those of animals to the east but average somewhat paler (less brownish). The specimens seen from Louisiana seem to be intergrades between _intermedius_ and _floridanus_ but clearly are assignable to the latter. [Illustration: FIG. 1. Condylocanine length plotted against length of forearm for specimens of the species _Lasiurus intermedius_.]