"The large , ventrally disposed mouth, coupled with the highly distensible enteric sac, enables the animal to ingest others almost as large as itself. When in such a gastronomic dilemma, the animal lies quietly, while the large irregular bulk of food is reduced to a convenient size by enzymic action."
From Ferguson, 1939. A monograph of the genus Macrostomum O. Schmidt 1848. Part I, p14
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