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Title Date of sighting reporter Image Lat / Lng Description Type of organism Other type
Stung by unknown… Jellywatcher 41.280 / -70.100

About 4-6” in diameter. Did not get clear view.

Jellyfish Not certain
Blue string.... no! Jellywatcher 28.190 / -83.640

I saw a wiry blue string sitting in the ocean i’m totally

Man o war Blue bottle
Jellyfish- possibly lion… Jellywatcher 44.030 / -68.800

Jellyfish found drifting into shore in Brookline, ME.

Sea Nettles Jellywatcher 37.240 / -76.510

12+ Sea Nettles of various size swimming 20 yards off the

Jellyfish Sea Nettle
Jellyfish at Laguna… Jellywatcher 36.980 / -122.160

Single jellyfish that washed up on shore momentarily for

Moon Jellies in BC Jellywatcher 49.470 / -123.750

Blooms of Moon Jellies sighted at 10 am in Lamb Bay, Sech

Lots of jellyfish Jellywatcher 36.650 / -76.280

Lots of brownish red jelly fish just floating around in N

Lion Mane Jellyfish Jellywatcher 40.970 / -72.140

Napeague Beach Amagansett, NY

Clean sea in St. Peter… Jellywatcher 54.300 / 8.650 Clean sea
Unknown jellyfish Jellywatcher 37.030 / -76.350

Sighted in the Chesapeake Bay at Grandview Nature Preserv

Julia Jellywatcher 51.610 / -9.700

Hundreds of By-the-wind sailors.

All the bay nettles Jellywatcher 36.380 / -75.830

Too many jellyfish to swim

Possible Lions Mane… Jellywatcher 57.870 / -6.670

Seen in the small harbour below the lighthouse, Eilean Gl

Other Mr.
Box jellyfish Jellywatcher 36.880 / -121.860


Broad Haven Velella… Jellywatcher 51.780 / -5.100

Thousands of Velella Velella on Broad Haven beach today,

Lion’s Mane in Mendocino… Jellywatcher 39.310 / -123.800

Went kayaking out of Russian Gulch SP in Mendocino, CA an

Small organisms washed… Jellywatcher 38.690 / -75.070

2 cm long sperm-like appearance, orange color at large en

Other Unknown
Mnemiopsis everywhere drcolossus 55.610 / 10.610

abundant Mnemiopsis leidyi, found while snorkeling near s

Other Ctenophore
Velella sighting on… Jellywatcher 52.120 / -7.230

velella washed Up on a beach called kilfarassay in waterf

Velella Velella Jellywatcher 52.390 / -6.390

abundance both beached and off shore.

Moon jelly - Ft Stevens… Jellywatcher 46.200 / -123.980

I saw one small moon jelly while wading off the Northern

Cassiopeia sp. Jellywatcher 29.690 / -85.340

3 small (half dollar) sized Cassiopeia on a sandy patch i

Sighting of single… Jellywatcher 36.670 / 24.460

I saw a purple jellyfish, a bit bigger than the palm of a

Multiple species of… Jellywatcher 36.320 / -75.810

Hundreds of jelly’s among the waves, some look to be type

Pink comb jellies Jellywatcher 36.950 / -76.240

Saw several pink comb jellies along the shore at approxim

Other Comb Jellies