Neonesidea edentulata 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 : 464-465

Neonesidea edentulata Maddocks, 2013

( Figure 1 G–L)

2013 Neonesidea edentulata Maddocks : 502, Figs. 2 , 35–37.

Material. Four specimens, including one male (3958M) and three juveniles.

Dimensions. Male specimen 3958M, L 0.690 mm, H 0.373 mm.

Supplemental description. The plate is wedge-shaped with nearly straight, rapidly converging edges. The posterior margin is smooth, except for a narrow but deep medial gap and very broad, deeply incised lateral gaps. There are no teeth, only two broad, low, smooth central ledges. The corners are asymmetrical horn-shaped flaps. The plate is thin, providing a clear view of the ventral setules. The ventral bracket is a simple V-shaped wall.

Remarks. Superficially, the carapace somewhat resembles N. holdeni , with its exaggerated pilosity, but it lacks the plumose caudal setae and terminal spine. The plate strongly resembles those of N. bacata 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 2. Neonesidea caraionae n. sp. A–K, holotype male specimen 1028M; L–T, paratype male specimen 1029M. A–B, RV and LV exteriors in TL; C–D, hemipenes; E, setulose terminal lobe of hemipenis; F, bifurcate tip of copulatory tube; G, A2 claw; H, VV of plate and bracket; I, posteroventral flange and sensilla of RV; J, posteroventral denticles and terminal spine of LV; K–L, RV and LV exteriors in RL; M, posteroventral marginal denticles and sensilla of LV; N–O, RV and LV exteriors in TL; P, AMS and NPC of LV; Q–T, EV and plate at high and low focus, and details of marginal teeth. Scale bar = 50 µm.