. Bulletin of the British Museum (Natural History). Zoology . 2IO J. R. HAYNES tc Protelphidium anglicum and in marine waters has masqueraded under the name of its relative, A7, asterizans, a larger form with angular periphery and higher chambers. Distribution. This species was described from the shore sands of Reculver, East Kent and has been recorded also from the West of Ireland, Clare Island (Heron- Allen & Earland, 1913b) and the Celtic Sea (Le Calvez, 1958). It is recorded by Murray from the Tamar Estuary (1965a), from Christchurch Harbour (1968) and from the Western App
. Bulletin of the British Museum (Natural History). Zoology . 2IO J. R. HAYNES tc Protelphidium anglicum and in marine waters has masqueraded under the name of its relative, A7, asterizans, a larger form with angular periphery and higher chambers. Distribution. This species was described from the shore sands of Reculver, East Kent and has been recorded also from the West of Ireland, Clare Island (Heron- Allen & Earland, 1913b) and the Celtic Sea (Le Calvez, 1958). It is recorded by Murray from the Tamar Estuary (1965a), from Christchurch Harbour (1968) and from the Western Approaches (1970). Nonion (Florilus) pauperatum (Balkwill & Wright) (PL 22, figs 13, 14; PI. 23, fig. 4; Text-fig. 44, nos 4-7) Nonionina pauperata Balkwill & Wright, 1885 : 353, pi. 13, figs 25, 26; Halkyard, 1889 : 71, pi. 2, fig. 13; Heron-Allen & Earland, 1911 : 342, pi. 11, figs 16, 17. Nonion pauper atum (Balkwill & Wright) Cushman, 1930 : 13, pi. 5, figs 4, 5, 7 (after Balkwill & Wright, Halkyard and Heron-Allen & Earland); 1949 : 26, pi. 5, fig. 5; Haake, 1962 : 42, pi. 3, figs 6, 7. Diagnosis. An angular species of Nonion (Florilus) with eight or nine chambers visible and distinct, limbate sutures meeting in a large, flat boss (on each side). Description. (PI. 22, figs 13, 14.) Test compressed, tapering from the umbilici to the angular periphery, semi-lobate; chambers arranged in an involute planispire, slowly increasing in size as added, becoming much higher than long, triangular in apertural view, nine visible at the periphery; sutures distinct, limbate, swept back,. Fig. 44. 1-3. Nonion depressulus. 1, side view of eight chambered specimen, probably megalospheric; 2, apertural view; 3, side view of specimen with 11 chambers visible. 4-7. Nonion pauper atum. 4, apertural view of specimen with eight chambers visible externally; 5, side view; 6, apertural view of specimen with nine chambers visible; 7, side Please note that these
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