Cepheidae may refer to:
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Cepheidae (jellyfish)
Cepheidae is a family of jellyfish
Jellyfish and sea jellies are the informal common names given to the medusa-phase of certain gelatinous members of the subphylum Medusozoa, a major part of the phylum Cnidaria. Jellyfish are mainly free- ...
, a family of jellyfish in the order Rhizostomeae
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Cepheidae (mite), a family of mites in the order
Sarcoptiformes
The Sarcoptiformes are an order of Acari comprising over 15,000 described species in around 230 families. Previously it was divided into two suborders, Oribatida and Astigmatina, but Oribatida has been promoted to an order, and Astigmatina is n ...
{{taxonomy disambiguation