...Travelling up the south-eastern reach, we passed a triangular insulated rock off the southern bank, and then the "diabolitos" outlying Point Kilu, opposite Banza Vinda on the other side... 
Richard F. Burton 「Two Trips to Gorilla Land and the Cataracts of the Congo Volume 2」
...Upper leaf triangular,emarginate at the tip, reaching above the base of the ears(Jerdon)...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...Temminckii; ears slightlyshorter than the head; internal basal lobe convex, evenly rounded;tip broadly rounded off; tragus moderately long and rounded at thetip; a prominent triangular lobe at base...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...The molars are in fact composed of alternating triangular prisms,with the outer folds of enamel forming deep and acute angles...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...The undersurface of both pairs of wings is much lighter and thicklymottled all over with light cream-colored spots of a largesize and more or less triangular shape...
Clarence M. Weed 「Butterflies Worth Knowing」
...A long oval stone is the best, but a triangular or square stone can be securely wired...
A. R. (Arthur Robert) Harding 「Wolf and Coyote Trapping」
...Wings entire; anterior greenish, with a central triangular band and black spot; posterior bluish black in the middle, the margin fulvous; sides of the body with five snowy spots...
William Swainson 「Zoological Illustrations, Volume II」
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