220 rROCKEDINGS OF THE MALACOr.OGICAL SOCIETY. 



Scalar id, and most as Ct/elodreina. The first two genera being, 

 generally abandoned, the last proves to be quite as unsuitable. 

 Miss K. Bush, in the Trans. Conn. Acad., vol. x, pp. 97 et seq., 

 1897, published a Revision of the Cyclostrematids and allied genera, 

 and, though she introduced several new genera, these species cannot 

 be accurately placed in any. I therefore propose the genus Brookula, 

 and name as type the following new species, B. stibarochila. 



Bkookula stibarochila, n.sp. 



Shell minute, glohosely turbinate, perforate, glassy, transparent- 

 Whorls four. First whorl and a half unsculptuied, the succeeding! 

 whorls bearing sloping axial laminoe, the interstices crossed with fine 

 regular striae. On the last whorl fifteen lamellae are present, the last: 

 forming the outer edge of the aperture. Aperture circular, continuous. 

 Umbilicus narrow and deep. 



Measurement of type : Height 1-2.5, breadth 1 mm. 



Hab. — Sunday Island, Kerniadec Group. 



To this genus I would refer Ci/clostrema coniciim, Watson 

 (Chall. Reports, Zool., vol. xv, p. 122, pi. viii, figs. 9a-c)\ angeli^ 

 T.-Woods ; corulum, Hutton ; crebrisculptum, Tate; denselaminatum, 

 Verco ; Nepeanfusis, Gatlifl, etc. 



The genus is named after Mr. W. R. Brook Olivei', my collecting 

 companion for many years, and one of the members of the Kermadec 

 Islands Expedition. 



Jeannka, n.gen. 



Shell fusiform, the spire equalling the aperture in length ; aperture 

 oval; columella smootli ; outer lip thick, but not denticled ; canal 

 short, recurved. Protoconch turbinate, two-whorled, unsculptured. 

 Opercuhnn leaf-shaped, nucleus apical. 



Type, J. Iledlei/i, n.sp. 



Jeannea Hedleyi, n.sp. PI. IX, Fig. 14. 



Sliell small, fusiform, solid. Characters as above. Adult whorls 

 five. Colour reddish-fawn with darker markings. Sculpture 

 commences with longitudinal ribs, which are well nuirked on the first 

 two whorls and fade away subse(iuently, not showing at all on the 

 last whorl. Spiral threads commence at the same time, but these 

 persist throughout, the last whorl showing two major ones above the 

 aperture, and seven equally spaced can be counted on the outer lip. 

 Between these are minor threads; on the last whorl three being seen 

 between each nuijor thread. In some shells these are faintly nodulous. 



