short, the hard tube in which itlives in the sand being many times the length of the ani-mal. Projecting from the tube may be seen a fan-like ap-pendage most beautifully tinted with bands of red and white.This fan is the serpulas gills, and aid it in procuring itsfood. If viewed with a magnifying… … A MARINE AftUARIUH, ) 1876 SCIENTIFIC AMERICAN, INC. 136 Sftitntttlt %mnian. [August 26, 1876. that brings in a multitude of minute animals upon whichthe worm feeds. The serpula is furnished with an arrange-ment for stopping its tube when it wishes to retire ; this isa conical appendage developed…
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