Neonesidea tenera ( Brady, 1886 )

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 : 485

Neonesidea tenera ( Brady, 1886)

( Figure 13 J–M)

1886 Bairdia tenera Brady : 304, Pl. 39, figs. 13–15.

1890 Bairdia tenera Brady—Brady , 495, Pl. 1, figs. 11–12.

1902 Bairdia tenera Brady—Chapman , p. 422.

1905 Bairdia inornata A. Scott : 372, Pl. 1, figs. 11–12 [subjective synonym].

1969 Neonesidea tenera (Brady) —Maddocks, p. 33, Pl. 2, fig. 4.

? 1983 Neonesidea n. sp. 1—Bonaduce et al.: 478, Fig. 4 , figs. 6–9.

? 1983 Neonesidea ? tenera (Brady) —Bonaduce et al., p. 481.

? 1995 Neonesidea tenera (Brady) —Whatley & Roberts, Fig. 1–1 .

1999 Neonesidea tenera (Brady) —Whatley & Jones,, Pl. 1, fig. 10.

2000 Neonesidea tenera (Brady) —Whatley, Table 1.

2000 Neonesidea tenera (Brady) —Whatley, Jones & Wouters, 85, Pl. 2, figs. 1, 2, 4 (not fig. 3).

? 2002 Neonesidea gr. tenera (Brady) —Hoibian et al., p. 183.

2012 Neonesidea tenera (Brady) —Munef, p. 154, Pl. 1, figs. 10–11.

2013 Neonesidea tenera (Brady) —Maddocks, p. 477, Figs. 5 A–D, 6A–L, 7A–I, 8A–J, 9A–H, 10A–L, 11A–H, 12A–H, 13A–D, 14A–E, 15–17.

2018 Neonesidea tenera (Brady) — Maddocks (2018), Figs. 3 A–C; 5A–B, G, I; 6D; 7A–C; 10A, C.

non 1894 Bairdia inornata T. Scott : 136, Pl. 14, figs. 40–41 [= senior homonym of B. inornata A. Scott ].

non 2012 Neonesidea tenera? (Brady) —Antonietto et al., p. 35, Fig. 4 , figs. 16–22.

Material: 38 living specimens in 5 samples from French Frigate Shoals, the Hawaiian Islands (see Maddocks 2013).

Dimensions: Maddocks (2013, p. 478, Fig. 15 ) reported the following dimensions: Female specimen 3892F, L 0.833 mm, H 0.506 mm; Female specimen 3905F, L 0.824 mm, H 0.473 mm.; Male specimen 3906M, L 0.797 mm, H 0.453 mm.

Supplemental Description: The plate is broad and slightly scoop-shaped with bowed edges and beveled scroll. The posterior margin carries an even row of six broad teeth with crescentic to low-conical terminations, symmetrically arrayed on either side of a narrow medial gap, with wider gaps near the distal corners, and multilobate corner teeth.

Remarks: See Maddocks (2013, 2018) for a description of the Hawaiian population.

Distribution: Gulf of Mannar, Ceylon; coast of Socotra Island, Yemen; Gulf of Aqaba (?); Hanéohe Bay, O’ahu, and French Frigate Shoals, the Hawaiian Islands. See Maddocks (2013) for further evaluation.

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 3. Neonesidea credibilis n. sp.; A–H, holotype specimen 500M from Anton Bruun station 412C; I–N, subfossil specimens from Nosy Be: I, 4064RV, J, N, 4062LV; K–M, 4063LV. Neonesidea schulzi (Hartmann), O–Q, specimen 458F from Admirante Island.A, RV exterior in TL; B, DV of EV with ring, plate and bracket; C, DV of plate; D, A2 claw; E, right hemipenis; F, both hemipenes and fragmentary furcae; G–H, AMS and NPC of RV at high and low focus; I–L, RV and LV exteriors in TL; M–N, AMS and NPC of RV and LV; O, DV of EV with ring, plate and bracket; P, plumose sensilla of posterior margin of LV; Q, LV exterior in TL. Scale bar = 50 µm.

FIGURE 4. A–G, Neonesidea decipiens (M̹ller), specimen 170F; H–N, Neonesidea mediterranea (M̹ller), specimen 171F. A–B, RV and LV exteriors in TL; C–D, RV and LV exteriors in RL; E, AMS and NPC of RV; F, VV of EV with ring, plate, bracket and both braces; G, marginal teeth of plate; H, A2 claw; I, posteroventral denticles of LV; J, posteroventral frill of RV; K–L, DV of EV with plate, bracket and braces; M–N, RV and LV exteriors in TL. Scale bar = 50 µm.

FIGURE 5. A–U, Neonesidea dinochelata (Kornicker). A, C, specimen 4071RV; B, D, specimen 4070LV; E–F, specimen 4047W; G–H, specimen 4048RV; I, J, specimen 4068RV; J, L, specimen 4067LV; all from the Bahamas. M, specimen 4949RV; N–O, specimen 4050LV; both from Belize. P–T, specimen 4065W from Grand Cayman Island. U, specimen 4069RV from Florida Keys. V–Z, Neonesidea sp. aff. N. dinochelata (Kornicker). V, specimen 4052RV from Belize; W–Z, specimen 4072W from Guantanamo Bay, Cuba. A, E, G, I, M, P, U–V, W, all RV exteriors in TL; B, F, J, N, Q, X, all LV exteriors in TL; C, H, K, R, Y, all AMS of RV; D, L, O, S, Z, all AMS of LV; T, DV of RV and LV in TL. Scale bar = 50 µm.

FIGURE 13. A–F, Neonesidea manningi Maddocks; A, specimen 895M; B–C, specimen 903F; D–E, specimen 900M; F, specimen 906J; all from Ascension Island. G–I, Neonesidea plumulosa Maddocks, holotype specimen 3960M, from French Frigate Shoal, the Hawaiian Islands. J–M, Neonesidea tenera (Brady); J, specimen 3906M; K, specimen 3892F; L, specimen 3905F; M, specimen 3957J; all from French Frigate Shoal, the Hawaiian Islands. A–B, antennal claws; C–G, I, L, EV with ring, plate, bracket, braces, and details of posterior teeth of plate; H, right lateral view of carapace in RL; M, left lateral view of soft body within decalcified RV. Scale bar = 50 µm.

FIGURE 15. Neonesidea omnivaga Maddocks. A–E, specimen 2444F; F–L, specimen 2447W. A–B, RV and LV exteriors in TL; C, AMS of LV; D, A2 claw; E, genital lobe; F–G, AMS of RV and LV; H–I, RV and LV exteriors in TL with food ball (f) and unidentifiable fragments of appendages.