Glossobalanus sarniensis is an acorn worm, belonging to a group of hemichordates called Enteropneusta.

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Glossobalanus sarniensis is an acorn worm, belonging to a group of hemichordates called Enteropneusta. They are considered to be intermediary between invertebrates and vertebrates. They have soft, fragile and worm-like bodies and live buried in sand. They are filter-feeders, have an acorn-like proboscis and they breathe by means of gills.

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Keywords: acorn, background, black, bottom, close, close-, cut, cut-, cutout, glossobalanus, hemichordate, hemichordates, marine, sand, sarniensis, sea, seashore, sediment, worm, worms