Dutoitella lesleyae Dingle 2003

Dutoitella lesleyae Dingle, 2003

(Figure 15.C–E, Table 1)

1880 in part Cythere suhmi Brady: 106–107, pl. 26,?figs. 3.a–h. 2002 Dutoitella sp. 4194 Dingle: Tab. 1.

2003 Dutoitella lesleyae Dingle: 146, pl. 4, figs. 14–18.

Material. Paralectotypes of Dutoitella suhmi (Brady, 1880): 7 valves. NHM 1961.12.4.24.A (SNB added the “A” after the collection number): three coated, Subrecent valves on a white, paper micropalaeontological slide labelled “173, Cythere suhmi Brady, 92, “Challenger”, D. 50–150, off Pr. Edwd. Is., 1961.12.4.24” (locality 5 in fig. 2 and tab. 1).

NHM 1961.12.4.24.C (SNB added the “C” after the collection number): Four Subrecent valves (+12 valves of “ Cythere polytrema B.”) on a brown, paper micropalaeontological slide labelled “1 Cythere polytrema, B., n.sp., 2 Cythere suhmi n. sp., 1961.12.4.24, 1., 2., “CHALLENGER” No., Depth 50–150 faths., off Pr. Edwd. I., 173, G. S. Brady 26/12/74 ”.

Remarks. After studying the paralectotypes of D. suhmi from the Southern Ocean (Prince Edward Island), we assign these last specimens to D. lesleyae and provide SEM photos from them (Fig. 15.C–E).

Type locality (Brady, 1880: 25). Subrecent. Northwestern Pacific. Challenger Expedition 1873–1876, station 241, 35°41'N, 157°42'E, tow net, 23.06.1875, 2300 fathoms (4206m). Dutoitella suhmi (Brady, 1880): A–B, lectotype, left valve (NHM 80.38.119.A): A, entire valve; B, anterior region of lateral surface.

Subrecent. Southwestern Atlantic, Challenger Expedition 1873–1876, station 323, sounding 473, 35°39'S, 50°47'W, 3475m. Dutoitella lesleyae Dingle, 2003: C–D, Paralectotypes of Dutoitella suhmi (Brady, 1880) (NHM 1961.12.4.24.A); C, E, right valve; D, left valve.

Not types, material re-sorted from Challenger Expedition sediment sample, station off Prince Edward’s island (sediment sample M-169 from the NHM collection). Cytheroidea sp.: F, left valve (NHM 1961.12.4.24.B). [Probably a juvenile of Cativella].

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