Contents

Russian Journal of Marine Biology

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Vol. 49, No. 1, 2023

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The 50th Anniversary of the Laboratory of Embryology

p. S1  abstract

Review

On the Origin of Tentacles and Limbs in Deuterostomia

V. V. Malakhov and O. V. Ezhova p. S2  abstract

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Original Papers

Molecular Identity of Laonice cirrata (Sars, 1851) (Annelida, Spionidae) and Description of a New Laonice species from the Northwest Pacific

V. I. Radashevsky, A. V. Sikorski, V. V. Pankova, Jin-Woo Choi, T. V. Neretina, A. A. Prudkovsky, L. V. Pavlova and A. B. Tzetlin p. S29  abstract

Fine Structure of the Gametes in Rhynchospio glandulosa (Annelida: Spionidae), a Hermaphrodite Brooding Larvae on the Parent’s Dorsum

V. I. Radashevsky and O. V. Yurchenko p. S47  abstract

Scyra bidentata (A. Milne-Edwards, 1873) (Brachyura: Epialtidae)—A New Host of the Rhizocephalan Parasacculina pilosella (Van Kampen & Boschma, 1925) (Rhizocephala: Polyascidae)

D. D. Golubinskaya, O. M. Korn and S. N. Sharina p. S61  abstract

Description of the Morphology of Pilidium incurvatum from Vietnam with Discussion of the Origin of Pilidia of the recurvatum Group (Nemertea, Pilidiophora)

A. V. Chernyshev p. S69  abstract

Ultrastructural Features of the Alimentary Canal in Hermaphroditic Appendicularians Oikopleura gracilis (Tunicata, Oikopleuridae)

A. V. Savelieva p. S76  abstract

Variability of Sea Urchin Larvae: The Jar Effect

A. Kalachev and A. Tankovich p. S90  abstract

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