Key:  Phylum Hemichordata

Smith, Shannon E., Rob Douglas, Karen Burke da Silva, and Billie J. Swalla, 2003.  Morphological and molecular identification of Saccoglossus species (Hemichordata: Harrimaniidae) in the Pacific Northwest.  Canadian Journal of Zoology 81: pp 133-141

Only two species of Hemichordates, all Enteropneusts in Family Harrimaniidae and genus Saccoglossus, have been described on the Pacific Northwest Coast.
 

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1a	26-53 pairs of gill bars, bright orange proboscis and collar. Trunk orange to yellow.  Deep dorsal groove on proboscis.  Skeleton of proboscis (only visible by special preparation) has two bars which project out at an angle posteriorly and do not turn to project directly posteriorly.  Found mostly on exposed shores, in sand or under rocks.	Saccoglossus pusillus
1b	60-123 pairs of gill bars, proboscis yellowish, beige, tan, or creamy white.  Collar orange, brick red, or reddish-green.  Trunk Pinkish orange, brown, yellowish brown, or yellowish white.  Shallow dorsal groove on proboscis.  Skeleton of proboscis (only visible by special preparation) has two bars which project out at an angle posteriorly, then turn and proceed directly posteriorly.  Found mostly on protected shores in muddy sand.	Saccoglossus bromophenolosus

  Saccoglossus bromophenolosus