title: Sperm motility in the horseshoe crab, Limulus polyphemus L. II. Partial characterization of a motility initiating factor from eggs and the effects of inorganic cations on motility initiation.
mesh_terms: D000818:Animals; D002413:Cations, Divalent / Q000494:pharmacology; D005260:Female; D006737:Horseshoe Crabs / Q000502:physiology*; D006358:Hot Temperature; D008297:Male; D008970:Molecular Weight; D010063:Ovum / Q000502:physiology*; D013081:Sperm Motility / Q000187:drug effects
chemical_list: D002413:Cations, Divalent