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Free Content Brood Protection in an Epipelagic Thecosomatous Pteropod, Spiratella (“Limacina”) Inflata (D'Orbigny)

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Brood protection is described for the first time in Spiratella inflata, an epipelagic thecosomatous pteropod common in tropical and subtropical waters. Adults larger than 1.1 mm in shell diameter brood embryos and early veligers in their mantle cavities, where the young are attached to the mantle lining. Veligers are released into the sea when they measure 0.066 to 0.068 mm in shell diameter, and they attain a size of approximately 0.40 mm before metamorphosis to the adult form is completed. This type of development is compared with that of other thecosomes and with the general developmental patterns of opisthobranchs.

Document Type: Research Article

Publication date: December 1, 1973

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