Kolbin K.G., Kulikova V.A. 2006. [Reproduction and development of the prosobranch gastropod mollusks of Caecidae family in Peter the Great Bay (Sea of Japan)] // Invertebrate Zoology. Vol.2 (for 2005). No.2: 217–223 [in Russian, with English summary].

Institute of Marine Biology, Far-Eastern Branch of the Russian Academy of Sciences, Palchevskogo St., 17, 690041, Vladivostok, Russia.

doi: 10.15298/invertzool.02.2.05

ABSTRACT: Reproduction and development of the prosobranch gastropod molluscs of Caecidae family, Brochina derjugini Golikov (Golikov et Scarlato, 1967) and Fartulum bucerius Golikov (Golikov et Scarlato, 1967) have been investigated in vitro for the first time. In Vostok Bay (Peter the Great Bay) these species breed in July at 17–20°C water temperature. Both species have internal fertilization, and ontogenesis includes formation of egg masses, from which larvae come out to plankton in the stage of veliger. These two species have similar spawning time, rate of development, morphology of larvae and sculpture of proto- and teleoconch, which indicates their close relationship and allows us to include them to Caecum genus as two subgenera.

KEY WORDS: Caecidae, larvae, egg mass, ontogenesis, protoconch, teleoconch.

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