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Pocketed free-tailed bat
The pocketed free-tailed bat (''Nyctinomops femorosaccus'') is a species of bat in the family Molossidae found in Mexico and in Arizona, California, New Mexico, and Texas in the United States. They resemble the Brazilian free-tailed bat ("Tadarida brasiliensis") but differ morphologically. They are classified within the order Chiroptera. They are recognized as "un-threatened" by the IUCN and as "apparently secure" by Natureserve categories.
==Characteristics==
The pocketed free-tailed bat shares similar features with the Brazilian free-tailed bat ("Tadarida brasiliensis") but is larger in size. The name is derived from a skin fold stretching from the medial side of the femur to the middle of the tibia. This fold produces a shallow pocket on the underside of the interfemoral membrane in the vicinity of the knee. Some defining characteristics include: Ears joined at the midline; second phalanx of the 4th digit is less than 5mm; anterior part of hard palate narrowly excised; upper incisors placed close together with longitudinal axes nearly parallel.〔Pocketed Free-tailed Bat. Pocketed Free-tailed Bat. Texas Parks and Wildlife, 01 Jan. 2012. Web. 21 Mar. 2015.〕
The pocketed free-tailed bat also has a large broad head with grooved lips. The face has many stiff hairs with spoonlike tips. The ears are thick and leathery with the presence of a dominant tragus. Body dimensions: body length~112mm; feet~10mm; tail~46mm; ears~23mm; forearms~46mm. Body mass range is 10-14 g (.35-.49 oz).〔Lancaster, Eric. "Nyctinomops Femorosaccus Pocketed Free-tailed Bat." Nyctinomops Femorosaccus Pocketed Free-tailed Bat. University of Michigan, 17 Feb. 2000. Web. 21 Mar. 2015.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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