Long-Tailed Pocket Mouse
Chaetodipus formosus
The Long-Tailed Pocket Mouse is very difficult to distinguish from the Desert Pocket Mouse. There is a subtle difference to ear shape that is one factor. Penis shape is another factor, but few of us want to get that intimate with a rodent. The Long-Tailed Pocket Mouse is one of the most common rodents in the American desert southwest. In San Diego County it is restricted to the Anza-Borrego Desert.
4 Photos
Long-Tailed Pocket Mouse(Chaetodipus formosus) |
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Description: This mouse is very similar to the Desert Pocket Mouse. Subtle ear shape and size are one of the keys to distinquishing the two species. Near Cottonwood Spring in southern Joshua Tree National Park. Riverside County California. |
Date Taken: 2016:09:26 7:57 |
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Location:
Cottonwood Spring |
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Camera Information: NIKON D7200, 70 mm, f/8.0, 1/160 |
File Name: LongTailedPocketMouse_D724985-JackDaynes-Web |
| © 2016 Jack Daynes, shadeTreeImaging.com |
Long-Tailed Pocket Mouse(Chaetodipus formosus) |
|
Description: This mouse is very similar to the Desert Pocket Mouse. Subtle ear shape and size are one of the keys to distinquishing the two species. Near Cottonwood Spring in southern Joshua Tree National Park. Riverside County California. |
Date Taken: 2016:09:27 8:43 |
|
Location:
Cottonwood Spring |
|
Camera Information: NIKON D7200, 52 mm, f/8.0, 1/1600 |
File Name: LongTailedPocketMouse_D726804-JackDaynes-Web |
| © 2016 Jack Daynes, shadeTree Imaging |
Probable Long-Tailed Pocket Mouse(Chaetodipus formosus) |
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Description: Distinguishing the Long-Tailed Pocket Mouse (formosus) from the Desert Pocket Mouse (penicillatus) is very difficult. Ear shape and length are key, but there are intermediate shapes and lengths in either species, creating uncertainty in the identity. m Near Cottonwood Spring in southern Joshua Tree National Park. Riverside County California. |
Date Taken: 2016:09:27 8:56 |
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Location:
Cottonwood Spring |
|
Camera Information: NIKON D7200, 50 mm, f/8.0, 1/1600 |
File Name: LongTailedPocketMouse_D726874-JackDaynes-Web |
| © 2016 Jack Daynes, shadeTreeImaging.com |
Long-Tailed Pocket Mouse(Chaetodipus formosus) |
|
Description: This mouse is very similar to the Desert Pocket Mouse. Subtle ear shape and size are one of the keys to distinquishing the two species. Near Cottonwood Spring in southern Joshua Tree National Park. Riverside County California. |
Date Taken: 2016:09:26 8:12 |
|
Location:
Cottonwood Spring |
|
Camera Information: NIKON D7200, 50 mm, f/8.0, 1/400 |
File Name: LongTailedPocketMouse_D725063-JackDaynes-Web |
| © 2016 Jack Daynes, shadeTreeImaging.com |
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