Summary description from Wikipedia:

Heptacarpus in languages:

Japanese

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Parent Taxon

• Thoridae

Sibling Taxa

• Birulia
• Eualus
• Heptacarpus
• Lebbeus
• Paralebbeus
• Spirontocaris
• Thinora
• Thor

Child Taxa

• Heptacarpus brachydactylus
• Heptacarpus brevirostris
• Heptacarpus camtschaticus
• Heptacarpus carinatus
• Heptacarpus decorus
• Heptacarpus flexus
• Heptacarpus franciscanus
• Heptacarpus futilirostris
• Heptacarpus geniculatus
• Heptacarpus herdmani
• Heptacarpus kincaidi
• Heptacarpus moseri
• Heptacarpus palpator
• Heptacarpus paludicola
• Heptacarpus pandaloides
• Heptacarpus pugettensis
• Heptacarpus sitchensis
• Heptacarpus stimpsoni
• Heptacarpus stylus
• Heptacarpus taylori
• Heptacarpus tenuissimus
• Heptacarpus tridens

Top Observation Places

• Encinitas
• Victoria