Neonesidea bacata Maddocks, 2013

Maddocks, Rosalie F., 2021, Taxonomic applications of the esophageal flapper valve in the Genus Neonesidea (Bairdioidea, Podocopida, Ostracoda), including descriptions of new and poorly known species from the Caribbean and Gulf of Mexico, Zootaxa 4903 (4), pp. 451-492 : 455-456

Neonesidea bacata Maddocks, 2013

( Figure 1 A–F)

2013 Neonesidea bacata sp nov: 496, Figs. 28–34.

2018 Neonesidea baccata Maddocks—Maddocks , Figs. 8H , 10B .

Material. One male specimen (3912M).

Dimensions. Male specimen 3912M, L 0.605 mm, H 0.285 mm.

Supplemental Description: The plate is broad, wedge-shaped, with nearly straight, rapidly converging lateral edges. The posterior perimeter is curved, with a narrow gap and two broad, smooth-edged, crescentic ledges, but no separate teeth. The lateral gaps are deep, and the corners are broad lobes. The ventral bracket is a V-shaped wall, from which tapering horns project posterolaterally.

Remarks. The plate of the flapper valve closely resembles those of N. edentulata and N. florea .

Distribution. French Frigate Shoals, the Hawaiian Islands.

Figures

FIGURE 1. A–F, Neonesidea bacata Maddocks, specimen 3912M; G–L, Neonesidea edentulata Maddocks, 3958M; M–R, Neonesidea holdeni Maddocks, specimen 3908M. A–B, RV and LV exteriors in TL; C, A2 claw; D, DV of both hemipenes; E–F, DV of EV with ring, plate, bracket and braces; G–H, right and left exteriors of whole animal before dissection; I, A2 claw; J, DV of both hemipenes; K–L, VV of plate; M, both hemipenes; N–O, RV and LV exteriors in TL; P, A2 claw; Q–R, VV of EV with ring, bracket, plate and marginal teeth. Scale bar = 50 µm.

FIGURE 8. A–L, Neonesidea florea n. sp. A–F, specimen 975M; G, specimen 1174LV; H–L, specimen 974M; all from West Flower Garden. M–R, Neonesidea gerda (Benson and Coleman); M, specimen 1252RV; N–O, specimen 1253LV; both from West Flower Garden; P, specimen 2847RV; Q–R, specimen 2848LV; both from the Bay of Campeche. A–B, E–F, P–R, in TL; C–D, in RL; G–O, by SEM. A–B, exteriors of RV and LV; C–D, DV of RV and LV; E–F, AMS and NPC of RV and LV; G, interior of LV; H–I, exteriors of RV and LV; J–L, NPC and sensilla; M–N, exteriors of RV and LV; O, NPC of LV; P, R, exteriors of RV and LV; Q, AMS of LV. Scale bar = 50 µm.

FIGURE 10. A–J, Neonesidea gerda (Benson and Coleman); A–E, specimen 4054M; F–G, specimen 4056M; H–J, specimen 4055W; all subfossil specimens from Stetson Bank. K–N, Neonesidea omnivaga Maddocks, specimen 609F. A–B, right and left hemipenes; C–D, distal details of hemipenis, with aesthetasc; E–G, DV of plate; H, right-diagonal view of tilted plate; I–J, braces, at high and low focus; K, braces; L, genital lobe, M–N, DV of EV with ring, plate and bracket. Scale bar = 50 µm.