Genotype: Galeodes maoriana Suter. Bortonian

The generic name Mauia Marwick, 1926 (p. 271) is preoccupied by Blackburn, 1885 (p. 194) in Coleoptera. Consequently the name Mauira is proposed as a substitute.

Mauidrillia browni n.sp. Plate 27, fig. 34.

Shell small, fusiform. Protoconch smooth, paucispiral, globose, of about 1 ½ whorls with large nucleus. Whorls angled about middle, with concave shoulder and periphery wider than lower suture on later whorls; base contracted at first slowly then quickly to fairly long neck. Sculpture at first of 10, later increasing to 12 or more strong axials extending from suture to suture but not down base; these are drawn to strong tubercles on shoulder angle and to small tubercles just below suture. Whole surface with weak, close, spiral cords, more plainly marked on base, about 5 on shoulder and 20 on body, those on neck finer, Apertural sinus broad, strongly defined by growth lines. Anterior canal without notch. Columella with a gentle twist that produces a prominent bourrelet on the neck.

Height, 7 mm.; diameter, 3 mm.

Localities: G.S. 2110 (type), G.S. 2222. Siltstone, Allday Bay (Awamoan).

This species is closely related to unilirata Powell, but it differs in having fewer and stronger tubercles, and a rather longer twisted neck.

This species is named in honour of Sub-Lieut. David A. Brown.

References.

Blackburn, 1885. Trans. Roy. Soc. Dublin (n.s.), vol. 3.

Chavan, A, 1937. Essai critique d. class d. Lucines, pts 1, 2, 3. Journ. d. Conch., vol. 81.

Chavan, A. 1938. Essai crit. d. class d. Lucines, pts. 4, 5, 6. Journ. d. conch., vol. 82.

Cossmann, M., 1895. Ess. Paléoconch Comp., livr 1. Paris.

—, 1901. Ess Pal. Comp., livr. 4.

—, 1903. Ess. Pal. Comp., livr. 5.

—, 1912. Ess. Pal. Comp. livr. 9.

—, 1918. Ess. Pal. Comp., livr. 11.

Dall, W. H. 1892. Tert. Moll. Florida, Trans. Wag. Free Inst., vol. 3, pt. 2.

Finlay, H. J. 1926. A Further Commentary on N.Z. Moll. Syst. Trans. N.Z. Inst., vol. 57.

Hedley, C., 1916. Moll. West Australia. Journ. Roy. Soc. West. Aust., vol. 1.

Park, J., 1918. Geol. Oamaru Hist. N.Z. Geol. Surv. Bull., No. 20 (n.e.).

Suter, H. 1908. Descript. New Species N.Z. Moll. Trans. N.Z. Inst., vol. 40.

— 1915. Revision of Tert. Moll. N.Z. Geol. Surv. Pal. Bull., No. 3.