hydrozoan

Portuguese man-of-war

A hydrozoan is any of a class of mostly marine invertebrates related to jellyfish and corals.

The group includes the Portuguese man-of-war and many small colonial organisms that form feathery or branching structures.

Most hydrozoans alternate between polyp and medusa life stages, though some species have lost one form or the other.

biology

cnidarian

Stinging aquatic invertebrate

life cycle · budding · regeneration · larva · asexual reproduction · sexual reproduction · polymorphism · metamorphosis · germination · gastrula

anatomy

polyp

Fleshy membrane projection

  • medusaFree-swimming cnidarian form
  • tentacleFlexible grasping appendage
  • bellHollow resonating instrument

umbrella-shaped · manubrium · stolon · velum · ocellus

traits

gelatinous

Viscous and semisolid

pulsate · float · drift · delicate · microscopic · luminescent · iridescent · fragile · translucent · ethereal

habitat

marine

Relating to the sea

benthic · tidal pool · substrate · fouling · floating · drifting · colony · aquarium · tropical · temperate

stinging

venom

Injected animal poison

  • toxinBiological-origin harm agent
  • dischargeRelease of substance outward
  • barbBackward-pointing spike

thread · harpoon · penetrate · defense · predation · capsule · trigger · envenomation

taxa

fire coral

Venomous colonial marine animal

Opposites
cnidarian taxonomy

hydrozoancoral

Marine skeletal formation

sea anemone · box jellyfish

jellyfish authenticity

hydrozoanmoon jelly

Translucent pulsing sea invertebrate

Aurelia

Family

dehydrate, hydrate, hydra, hydration, hydrogen, hydraulic, hydropower, anhydrous, hydrophobic

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Concrete · Rated G