Invertebrates > Hydrozoans
AT A GLANCECommon Name: Imperial Giant HydroidScientific Name: Branchiocerianthus imperatorCategory: InvertebratesSubcategory: HydrozoansSize: Stem height: 5.0–7.5 ft (1.5–2.3 m); tentacle crown diameter: 10–14 in (25–35 cm)Weight: Total biomass: 10–25 oz (280–700...
Invertebrates > Hydrozoans
AT A GLANCECommon Name: Dinner Plate JellyfishScientific Name: Solmissus incisaCategory: InvertebratesSubcategory: HydrozoansSize: Bell diameter: 4–8 in (10–20 cm); tentacles reach up to 10 in (25 cm)Weight: Fragile watery mass: 2–6 oz (60–180 g)Lifespan: Estimated...
Invertebrates > Hydrozoans
AT A GLANCECommon Name: Psychedelic Deep-sea JellyfishScientific Name: Crossota millsaeCategory: InvertebratesSubcategory: HydrozoansSize: Bell diameter: 0.8–1.2 in (2.0–3.0 cm); Tentacle length: 2.0–3.5 in (5.0–9.0 cm)Weight: 0.15–0.35 oz (4–10 g)Lifespan: Estimated...
Invertebrates > Hydrozoans
AT A GLANCECommon Name: Rocket SiphonophoreScientific Name: Diphyes disparCategory: InvertebratesSubcategory: HydrozoansSize: Anterior nectophore: 1.0–2.5 in (2.5–6.5 cm); Stem length: 6–20 in (15–50 cm)Weight: Colonial biomass: 0.1–0.5 oz (3–15 g)Lifespan: Ephemeral...
Invertebrates > Hydrozoans
AT A GLANCECommon Name: Firework JellyfishScientific Name: Halitrephes maasiCategory: InvertebratesSubcategory: HydrozoansSize: Bell diameter: 3.0–5.5 in (8–14 cm); Tentacles: 12–20 in (30–50 cm)Weight: 1.0–3.0 oz (30–85 g)Lifespan: Estimated several months to a year...
Invertebrates > Hydrozoans
AT A GLANCECommon Name: Blue ButtonScientific Name: Porpita porpitaCategory: InvertebratesSubcategory: HydrozoansSize: Central disc diameter: 1.0–1.5 in (2.5–3.8 cm); Total diameter with tentacles: 2.5–4.0 in (6–10 cm)Weight: 0.1–0.4 oz (3–11 g)Lifespan: Estimated...
Invertebrates > Hydrozoans
Overview AT A GLANCE Common Name: By-the-wind Sailor Scientific Name: Velella velella Category: Invertebrates Subcategory: Hydrozoans Size: Float length: 5-8 cm (2-3.1 in); Sail height: 2-4 cm (0.8-1.6 in) Weight: 3-10 g (0.1-0.35 oz) Lifespan: Several months to 1...
