Tilesheet information:

Tile size                 •  16px × 16px
Space between tiles       •  1px × 1px
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Total tiles (horizontal)  •  10 tiles
Total tiles (vertical)    •  18 tiles
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Total tiles in sheet      •  180 tiles


Note: I've set these creatures to all face right (except where symmetrical).
You may choose to horizonally-flip these sprites when creatures are facing left.