Taxonomic applications of the esophageal flapper valve in Bairdoppilata and Glyptobairdia (Bairdiidae, Ostracoda), with comments on anatomy, ontogeny, and geography Author Maddocks, Rosalie F. text Zootaxa 2022 2022-08-17 5175 3 301 342 journal article 124035 10.11646/zootaxa.5175.3.1 509d2bb8-bdff-4757-b45a-5d0cbccc31b4 1175-5326 7003585 44FB9C3D-3188-4BFB-BDB8-C1324729A396 Bairdoppilata sp. 4 [of Maddocks 2015 , Hawaii ] ( Figure 16E ) 2015 Bairdoppilata sp. 4 : Maddocks, p. 305, figs. 17G–P. 2018 Bairdoppilata sp. 4 , Maddocks.—Maddocks, figs. 5C–D; 8E–F, J–K; 10H–J; 12A–J; 16D–H. Material Examined: One female (specimen 3963F) from KB Station 5, Kane’ohe Bay, the Hawaiian Islands. Dimensions: Adult female 3963F, carapace L 1.084 mm , H 0.732 mm . Esophageal Valve: Plate flat, wedge-shaped, with curved posterior edge bordered by about 10 closely spaced, conical to subtriangular teeth, without a median gap, of which the 2 middle teeth and the 2 end teeth are slightly narrower than the 4 teeth between ( Fig. 16E ). At the corners, slightly wider, multilobate corner teeth are visible, together with setules from the underlying brush.