Kornicker, Louis S., and Thomas M. Diffe. New Ostracoda (Halocyprida: Thaumatocyprididae and Halocypridididae) from Anchialine Caves in the Bahamas, Palau, and Mexico. Smithsonian Contributions to Zoology, number 470,47 pages, 22 figures, 8 tables, 1989.—Four new ostracode taxa are described from anchialine environments. Danielopolina bahamensis, a thaumatocyprid, is described from Eleuthera, the Bahamas, based on 13 specimens. Danielopolina mexicana is described from two specimens from the the Yucatan Peninsula, Mexico. This brings the number of known Danielopolina species to five; a revised key to the genus is included The description of D. bahamensis includes the first for a male of the genus. Two new halocyprids are also described: Deeveya jillae, based on three specimens from Eleuthera, the Bahamas (bringing the number of known species of Deeveya to three); and a new subspecies, Euconchoecia bifurcata pax, based on 77 specimens from Koror Island, Palau. Ontogeny is described for those taxa with sufficient specimens: Danielopolina bahamensis and E. bifurcata pax. D. bahamensis probably has five growth stages. E. bifurcata pax has seven. The first instar of each of these two species has five pairs of appendages (first and second antennae, mandible, maxilla, and fifth limb) in addition to a furca. OFFICIAL PUBLICATION DATE is handstamped in a limited number of initial copies and is recorded in the Institution's annual report, Smithsonian Year. SERIES COVER DESIGN: The coral Montastrea cavernosa (Linnaeus). Library of Congress Cataloging-in-Publication Data Komicker, Louis S., 1919Ncw Ostracoda (Halocyprida, Thaumatocyprididac and Halocyprididac) from anchialine caves in the Bahamas, Palau, and Mexico. (Smithsonian contributions to zoology ; no. 470) Bibliography: p. 1. Thaumatocyprididae—Bahamas—Classification. 2. Thaumatocyprididac—Mexico—Classification. 3. Halocyprididae—Bahamas—Classification. 4. Halocyprididac—Palau—Classification. 5. Thaumatocyprididae— Bahamas—Development. 6. Thaumatocyprididae—Mexico—Development. 7. Halocyprididae—Bahamas— Development. 8. Halocyprididae—Palau—Development. 9. Crustacea—Classification 10. Crustacea— Development. I. Iliffe, Thomas M. II. Title. III. Series. QL1.S54 no.470 591s 88-600237 [QL444.08] [595.3'30972]