Euphysa flammea : The Race Rocks Taxonomy

1. The Bell is anywhere up to 12mm tall with 4 radial canals
2. Usually have 4 rounded tentacle bulbs with 1-4 tentacles (may be different lengths); without occelli
3. Tubular manubrium
4. Gonad completely encircles manubrium.
Bell transparent
manubrium, tentacle bulbs and tentacles often have a scarlet pigment, but may be white, yellow, or orangeish.
Natural History:
Seen nearly any month of the year, but it is uncommon in many localities such as Race Rocks. There are several present along the west coast, in both shallow and deep water. The first sighting of this species was made by student divers from Pearson College in June 2002. This has been the only sighting and it remains uncommon in the vicinity of Race Rocks. it was sighted in the summer along the sea floor in relatively shallow water. Although an immediate identification was not made, but identified later on by Dr. Anita Brinckman Voss.
Range: California to the Bering Sea, sighted at Race Rocks


Domain Eukarya
Kingdom Animalia
Phylum Cnidaria
Class Hydrozoa
Subclass Hydromedusae
Order Anthomedusae
Family Euphsidae
Genus Euphysa
Species Euphysa flammea
Common Name: none

References: “Pacific Coast Pelagic Invertebrates” by David Wrobel and Claudia Mills

This file is provided as part of a collaborative effort by the students, faculty,staff and volunteers  of Lester B. Pearson College Dec. 2002 Adrian Thorogood (PC yr29)