Appearance
It is known as the gray-sac winged bat first because of the sacs located between the wrist and the neck on the membrane of the wing, which is far more prominent and developed in males than in females. This sac is a defining feature: in this bat, the sac is in the center of the antebrachial membrane, while in others it is not centrally located. There have been reports that the inside of this sac is white, but others have stated that it varies in color and texture depending on the age of the bat and the season. Whichever the case, the sac has a proximal opening. The second reason this bat is known as the gray sac- winged bat is because of its coloring, which can range from the gray color it is known for to a rich brown; despite the differences, all varieties have white trim. It has darker colored fur on its back (dorsal) and lighter covered fur on its front (ventral).
The common feature among the Emballonuridae family is the sheath tail, meaning that there is a membrane that stretches from one of the bat’s ankles to its other, and the majority of the tail is covered by the membrane, with only the tip protruding. Its wing attaches to its ankle and its tail protrudes approximately 6mm away from its body. The average weight of a male is 6.1 g, and for the non-pregnant female the average weight is 7.1 g; their average body length is 66.6 mm. Unlike in many other bat species, there is no dorsal furrow between the nares, and the rostrum has been described as “inflated.” The ears are rounded and the thumb is about 5 mm long (considered long) and thin.
Read more about this topic: Gray Sac-winged Bat
Famous quotes containing the word appearance:
“When appearance and reality coincide, philosophy and literary criticism find themselves with nothing to say.”
—Mason Cooley (b. 1927)
“The aim of science is to apprehend this purely intelligible world as a thing in itself, an object which is what it is independently of all thinking, and thus antithetical to the sensible world.... The world of thought is the universal, the timeless and spaceless, the absolutely necessary, whereas the world of sense is the contingent, the changing and moving appearance which somehow indicates or symbolizes it.”
—R.G. (Robin George)
“Most lovers ... picture to themselves, in their mistresses, a secret reality, beyond and different from what they see every day. They are in love with somebody elsetheir own invention. And sometimes there is a secret reality; and sometimes reality and appearance are the same. The discovery, in either case, is likely to cause a shock.”
—Aldous Huxley (18941963)