. Bulletin of the British Museum (Natural History). Zoology . ii4 J. R. HAYNES Family TURRILINIDAE Cushman, 1927 Genus BULIMINELLA Cushman, 1911 Buliminella borealis Haynes n. sp. (Text-fig. 22, nos 1-3) Bulimina elegantissima Williamson, 1858 : 64, pi. 5, figs 134, 135 (not d'Orbigny). Buliminella elegantissima Cushman, 1911 : 88; Hoglund, 1947 : 215, pi. 18, fig. 1; text-figs 196, 197; Cushman, 1944 : 27, pi. 3, figs 43, 44; 1949 : 3°> P1- 4> figs 4. 5> Parker, 1952a : 416, pi, 5, figs 27, 28; Voorthuysen, i960 : 250, pi. 11, fig. 10; Haake, 1962 : 34, pi. 2, figs 1, 2.
. Bulletin of the British Museum (Natural History). Zoology . ii4 J. R. HAYNES Family TURRILINIDAE Cushman, 1927 Genus BULIMINELLA Cushman, 1911 Buliminella borealis Haynes n. sp. (Text-fig. 22, nos 1-3) Bulimina elegantissima Williamson, 1858 : 64, pi. 5, figs 134, 135 (not d'Orbigny). Buliminella elegantissima Cushman, 1911 : 88; Hoglund, 1947 : 215, pi. 18, fig. 1; text-figs 196, 197; Cushman, 1944 : 27, pi. 3, figs 43, 44; 1949 : 3°> P1- 4> figs 4. 5> Parker, 1952a : 416, pi, 5, figs 27, 28; Voorthuysen, i960 : 250, pi. 11, fig. 10; Haake, 1962 : 34, pi. 2, figs 1, 2. Diagnosis. An elongate-ovate species of Buliminella in which the last whorl makes up most of the test and in which the apertural face of the last chamber is about two-thirds the total length. Description. (Holotype. Text-fig. no. 1.) Test elongate-ovate, more than twice as long as broad, greatest width just below midpoint, base and apex rounded, spiral suture marked and slightly impressed; about 18 chambers arranged in a drawn out, sinistral, helicoid spiral with about 11 in the last whorl which makes up most of the test; sutures distinct, flush and sinuous, approaching vertical in the last part; wall radial, minutely perforate; aperture within an excavation at the distal end of the flattened, imperforate apertural face which makes a distinct angle to the rest of the test and extends for more than two-thirds its length. Dimensions. Length 0-25 mm, maximum width o-io mm. Material. More than 25 specimens. Variation. Most of the specimens recovered were small (Text-fig. nos 1-3) but some specimens occurred over 0-30 mm in length. As shown by our figures there is variation from an elongate-ovate shape to specimens with more pointed ends,. Fig. 22, 1-3. Buliminella borealis. 1, holotype, side and apertural view; 2, paratype, apertural view; 3, paratype, apertural Please note that these images are extracted from scanned page images that may have been digitally enhanced for r
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