si·pho·no·stoma·tous | \¦sīfənō¦stōmətəs, -täm-\

Definition of siphonostomatous 

1 : having the front edge of the aperture of the shell prolonged in the shape of a channel for the protection of the siphon used of various marine snails

2 : having a tubular mouth

3 [ New Latin Siphonostomata + English -ous ] : of or relating to the Siphonostomata

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History and Etymology for siphonostomatous

siphon- + -stomatous

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