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.