The deltoid is wasted, and the acromion unduly prominent.
"Manual of Surgery" by Alexis Thomson and Alexander Miles
In man there runs from the acromion to the manubrium of the sternum a bone, the collar-bone or clavicle.
"Text Book of Biology, Part 1: Vertebrata" by H. G. Wells
The tip of the acromion is usually employed as a fixed point in measuring the length of the upper arm.
"Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition." by Alexander Miles
The acromion and coracoid processes of the scapula are rudimentary.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7" by Various
The acromion is prominent, and projects a little beyond the glenoid cavity.
"Artistic Anatomy of Animals" by Édouard Cuyer
As in other American Edentates, the acromion joins the coracoid.
"The Cambridge Natural History, Vol X., Mammalia" by Frank Evers Beddard