Larson & Fautin, 1989, top;
M. gwilliami Larson & Fautin, 1989, bottom : Stalked Jellies|
Phylum Cnidaria / Class Scyphozoa / Order Stauromedusae / Suborder Cleistocarpida / Family Depastridae
Manania handi (top photo) has a calyx shaped like a goblet and may be up to 4 cm total length. Eight paired arms, each with 15 to 25 tentacles, alternate with 8 small tentacles. Keeping with this pattern, there are 8 paired gonads. Calyx color may be green or red, with 4 light-colored interradial strips. It feeds on amphipods and benthic copepods. This species grows on eelgrass and seaweeds in quiet subtidal habitats, and is found in the southern Vancouver Island to Puget Sound region. Manania gwilliami (bottom photo) is another West Coast species, preferring exposed habitats. It typically has a dark red color with distinct white subumbrellar nematocyst vesicles. When attached to coralline algae, the cryptic coloration makes it quite difficult to find.
Haliclystus spp. (not pictured) includes another group of stauromedusae. They have a funnel-shaped calyx, which may by up to 3 cm wide, and a stalk nearly the same length as the calyx. Each of the 8 calyx arms has 30 to 100 knobby tentacles that are arranged like a "pom-pom". Along the length of each arm is a gonad. Color may vary from green, brown, yellow, orange, pink, red or purple. Often cryptically colored and potentially fairly abundant, they inhabit a wide variety of subtidal and intertidal habitats. Small crustaceans that associate with benthic habitats are the preferred prey. Various Haliclystus inhabit areas in the North and South Atlantic, and North Pacific (California to Alaska; northern Japan and Russia).
All photographs © David Wrobel and may not be used or copied without permission!