...—Fur coarse as in the genus, profusely intermixed withlong piles, more numerous on the lumbar and sacral regions, whichproject a long way beyond the ordinary pelage... 
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...There are two sacral condyles...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...The rock-pigeon has twelve sacral vertebræ; but these vary in number, relative size, and distinctness in the different breeds...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...In tumblers there are either eleven, twelve, or thirteen sacral vertebræ...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...With the varying shape of the body, the breadth and number of the ribs, the presence of processes, the number of the sacral vertebræ, and the length of the sternum, all vary...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...The Aylesbury duck has fifteen cervical and ten dorsal vertebræ furnished with ribs, but the same number of lumbar, sacral, and caudal vertebræ, as far as could be traced, as in the wild duck...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...127, says the zebu has four, and the common ox five, sacral vertebræ...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...The sacral bone...
Robert Jennings 「Sheep, Swine, and Poultry」
...The various permutations of the X-shaped scapular markand dark sacral marks differ proportionately in different samples...
William E. Duellman 「Middle American Frogs of the Hyla microcephala Group」
...Approximately equal numbers ofspecimens have a transverse bar, chevron, or broken lines in the sacral region,whereas about eight per cent of the specimens lack markings in the sacralregion...
William E. Duellman 「Middle American Frogs of the Hyla microcephala Group」
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