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| cold-blooded aquatic vertebrates with gills, often have fins and elongated body covered with scales |
| phylum of radially symmetrical coelomate marine invertabrates |
| spermatheca (spûr'mə-thē'kə) Pronunciation Key
Plural spermathecae (spûr'mə-thē'sē) A receptacle in the reproductive tracts of certain female invertebrates, especially insects, in which spermatozoa are received and stored until needed to fertilize the ova. |