Short films produced as part of this research, such as A Small Hydromedusan: Polyorchis
Haplus (1970), which tracks the movement of a bell-shaped jellyfish, and a three-channel slide show, Tanks, ca.
Structure and function of the locomotory system of Polyorchis
montereyensis (Cnidaria, Hydrozoa).
(2005) conducted on Pleorchis polyorchis (Stossich, 1889) and Pleorchis uku Yamaguti, 1970 reveals that a clade, comprised of Zalophotrema hepaticum
polyorchis (Stossich, 1889) Stiles, 1896###Corvina nigra (Cuvier) (Sciaenidae), at Triest.###
This pattern is similar to extracellular recordings from the lens eyes of the jellyfish Polyorchis
penicillatus (16) and Tripedalia cystophora (17).
The shadow response of a hydromedusan (Polyorchis
penieillatus): behavioral mechanisms controlling diel and ontogenic vertical migration.
The unidirectional synapses observed in the pit, slit, and lensed eyes are similar to the synapses found in the ocelli region of the hydrozoan Polyorchis
penicillatus (Singla and Weber, 1982a).
Using a spectrophotometer, Chapman (1976) measured the transparency of several medusae (Polyorchis
, Chrysaora, Aurelia) as a function of wavelength (from 200 to 800 nm).
The funct ion of the shadow response has been examined in some detail in ascidian tadpole larvae (Woodbridge, 1924; Grave, 1944; Young and Chia, 1985; Svane and Young, 1989) where it appears to influence the settlement patterns of larvae, and in the hydrozoan medusa Polyorchis
penicillatus where it is involved in vertical diurnal migration (Spencer and Arkett, 1984; Arkett, 1985).
Gap and septate junctions in the excitable endoderm of Polyorchis
penicillatus (Hydrozoa, Anthomedusae).
On the potassium conductance increase activated by dopamine in the jellyfish Polyorchis
The demersal hydrozoan Polyorchis
penicillatus and the epipelagic hydrozoan Leukartiara octona were maintained in a planktonkreiset with an abundant supply of crustaceans, primarily Holmesimysis costata, as food for up to 48 h after capture.