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Other animals › Campanulariidae

Knotted Thread Hydroid

Obelia geniculata

457 observations in the source records

Wildlife study photograph from iNaturalist.
(c) raffaela_art, some rights reserved (CC BY-NC)

27 photos

Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.

Photos you add are credited to you, and you keep the copyright.

What the records say

Easily confused with

Study checks a spoken answer against these, and tells you which one you named.

Where it is recorded

Records by month in Alaska.January 294, February 217, March 340, April 534, May 770, June 840, July 899, August 773, September 568, October 424, November 232, December 181.
United States6,254
Alaska6,071
Canada519
New Brunswick213
Quebec122
Maine110
Nova Scotia78
Nunavut48
Manitoba41
Massachusetts40

Counts show where people looked, not only where it lives.

Classification

KingdomAnimals · Animalia
PhylumCnidarians · Cnidaria
ClassHydrozoans · Hydrozoa
OrderThecate Hydroids · Leptothecata
FamilyCampanulariidae
GenusWine-glass Hydroids · Obelia

Sources

Remember the name next time.

Practise Knotted Thread Hydroid with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.