The wing muscles of the American coot (Fulica americana Gmelin)

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Abstract
The gross anatomy of all wing muscles of the American coot (F. americana Gmelin) is described. A number of myological features distinguish the rallids from the other gruiforms studied to date: the presence of M [musculus] subcoracoideus caput dorsale, the insertion of M. flexor digitorum superficialis on Phalanx promimalis digiti majoris, the presence of a deep belly of M. expansor secundariorum, and the origin of M. expansor secundariorum tendo proximalis from a small craniomedial tubercle on the scapula. Unique to F. americana, within the gruiforms studied, M. biceps brachii pars propatagialis attaches to both Tendo longa and Tendo brevis of M. tensor propatagialis.

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