Nature By NameSign inCreate an account

Other animals › Rock Crabs

Jonah Crab

Cancer borealis

Learn Jonah Crab freeHow it works
Wildlife study photograph from iNaturalist.
(c) brownjay, some rights reserved (CC BY-NC)

28 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.

See all photosAdd a photo

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

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 Maine.January 226, February 183, March 222, April 436, May 1,079, June 805, July 644, August 536, September 514, October 406, November 205, December 192.
Canada9,530
United States7,033
Maine1,532
Quebec958
Massachusetts796
Nova Scotia677
New Brunswick367
New Hampshire239
New York123
New Jersey100

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

Traits

Physical

  • ExoskeletonHas a hard external skeletonFrom its classification

Classification

KingdomAnimals · Animalia
PhylumArthropods · Arthropoda
ClassMalacostracans · Malacostraca
OrderDecapods · Decapoda
FamilyRock Crabs · Cancridae
GenusEdible Crabs · Cancer

Sources

Remember the name next time.

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

Create a free accountHow it works