title: Evidence for ultradian rhythmicity in an intertidal crab.
authors.affiliation: Department of Zoology, University of Maine, Orono 04469.
authors.forename: H B
authors.initials: HB
authors.lastname: Dowse
authors.forename: J D
authors.initials: JD
authors.lastname: Palmer
mesh_terms: D000204:Activity Cycles / Q000502:physiology*; D000818:Animals; D003386:Brachyura / Q000502:physiology*; D008386:Marine Biology; D009043:Motor Activity / Q000502:physiology