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(invertebrate zoology)
An ostracod-like, free-swimming larval stage in the development of Cirripedia.



the final larval stage of development of cirripede crustaceans (barnacles). The cypris has a bivalve shell that covers the entire body; the shell resembles that of representatives of the subclass Ostracoda, particularly species of the genus Cypris. It has a median eye, two pairs of antennae, one pair of mandibles, two pairs of maxillae, and six pairs of thoracic legs. The abdomen is reduced. The cypris swims in the water and then descends to the bottom, attaching itself by the first pair of antennae to the substrate, where it is transformed into an adult. The antennae become reduced, and the shell fold is converted to a mantle, in which the skeletal plates characteristic of adult cirripedes are formed. In parasitic cirripedes the cypris undergoes regressive metamorphosis.

References in periodicals archive ?
In our multivariate analysis of cypris antennular morphology, all balanoidean species from coastal hard-bottom communities formed a single cluster, clearly separated from a cluster formed by the balanoidean Balanus spongicola and the non-balanomorphan Verruca stroemia.
The cypris enters a crab's gill chambers, attaches to a gill, drills a hole through the cuticle, and sends a small mass of cells into the crab.
Influence of substratum heterogeneity and settled barnacle density on the settlement of cypris larvae.
On the morphology of antennular sensory and attachment organs in cypris larvae of the deep-sea vent/seep barnacles, Ashinkailepas and Neoverruca.
1998) X Antirrhaea philoctetes lindigii (Felder, 1862) X Anthirrhaea undulata (Hering & Hopp, 1925) X Caerois gerdrudtus (Fabricius, 1793) X Morpho cypris chrysonicus Fruhstorfer, 1913 X X Morpho amathonte ecuadorensis LM.
A temple to Cypris is set up beside Pallas' rock" an analog of how Aphrodite embodies Ouranos.
Visualization of cement exocytosis in the cypris cement gland of the barnacle Megabalanus rosa.
When Meleager describes Deianeira as khloraukhen and "as yet unknowing of golden Cypris," these two descriptions likewise cooperate.
Induction of cypris major protein in barnacle larvae by exposure to 4-n-nonylphenol and 17[beta]-oestradiol.