Complex sentence: The body was round and well ribbed up, back short broad and muscular but not roached, chest very deep and wide, the tail was set low and devoid of fringe, rather drooping and never rising above the back.
Split into simpler sentences: The body was round and well ribbed up, its back short, broad, and muscular but not roached, and its chest deep and wide. The tail was set low and devoid of fringe, rather drooping and never rising above the back.