. Bulletin. Natural history; Natural history. 593 BATS. CHIROPTERA. SAY'S BAT. Myotis subtilatiis (Say). ?Vcspertilio siihulatus Say, Long's Exped. Rocky Mts., II., 1823, p. 65. This species has a general distribution throughout North America east of the Rocky Mountains. Dental formula: i, Vsj c, Vi! P"^ Vs! w^, Vs- The length of Say's bat is about like that of the little brown bat, in. (80-90 mm.), but the fore arm is usually a trifle shorter—about in. (34-37 mm.). The ears (Fig. 5) are long, reaching beyond the nose when laid forward. The tragus is very slender, and gave t
. Bulletin. Natural history; Natural history. 593 BATS. CHIROPTERA. SAY'S BAT. Myotis subtilatiis (Say). ?Vcspertilio siihulatus Say, Long's Exped. Rocky Mts., II., 1823, p. 65. This species has a general distribution throughout North America east of the Rocky Mountains. Dental formula: i, Vsj c, Vi! P"^ Vs! w^, Vs- The length of Say's bat is about like that of the little brown bat, in. (80-90 mm.), but the fore arm is usually a trifle shorter—about in. (34-37 mm.). The ears (Fig. 5) are long, reaching beyond the nose when laid forward. The tragus is very slender, and gave the bat its specific name, subulatus meaning awl-shaped. The color resembles that of the little brown bat, both species varying considerably in depth of color. I have never taken this bat wdthin the state, but in many localities it can not be uncommon. There is one specimen without data in our collec- ^at. tions, and one from East Cairo, Ky. It is apparently very unevenly distributed. By some reliable observers it is reported as being uncommon, while others in similar environment report it as very abundant. It hibernates, and has been found in winter in hollow trees in immense numbers. The young are produced in June. Twenty pregnant females examined by Dr. Burt G. Wilder, each contained two young, as did also each of ten examined by Dr. A. K. Fisher*. More than this have been reported in a litter, but two is the usual Ear of Say's (Miller.) *Merriam's "Mammals of the Adirondack Region," p. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division
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