128 JOURNAL OF CONCHOLOGY, VOL. 1$, NO. 4, OCTOBER, I916. 



coalesce on the body whorl, which, including the base, is a uniform 

 dark chestnut with the exception of two or three narrow lighter 

 streaks, marking growth periods. Whorls lo, convex, and separated 

 by a finely crenulate and, on the body whorl, beaded suture, white 

 above and pale brown below. 



Aperture vertical, auriform, angulate above and below, dark blue 

 within, edged on the outer margin with brown ; columella vertical, 

 expanded over the perforation, purple ; outer lip thin, the margins 

 joined by an extremely thin film of callus, showing the colouration 

 of the body whorl through same. 



Length, 59 mm.; diam. 27.5 mm. Aperture, 25 x 13.5 mm. 



Var aurea nov. : — Similar to type, but of a uniform golden yellow. 

 Sculpture a little stronger. 



Locality : Abinsi, Benue River, Northern Nigeria. 



The type specimens are in the collection of G. C. Spence. 



Note on CcBlocentrum gigas von Mts. — There is in my collection the 

 newly hatched, but now unfortunately defunct, shell of C. gigas von Mts. from 

 Livingston, Guatemala. This has a dome-shaped top, parallel sides and square cut 

 base, and consists of four whorls, of which the first one-and-a-half are smooth. 

 Strong riblets then appear below the suture whilst on the fourth whorl rather 

 weaker riblets appear on the lower edge and join, though very weak in the centre 

 tract, with those on the upper edge to form hemispherical riblets. Suture deep, 

 the third and fourth whorls somewhat overhanging and angled. Central column 

 hollow and swollen within each whorl as in the adult, but I cannot detect any 

 vertical ribbing. Colour pale horn, clear and semi-transparent. Height 3 mm. ; 

 diam. 2.75 mm. — G. C. Spence {Read before the Society, May loth, 1916). 



New Records for Pembrokeshire. — I cannot find any mention of Acicida 

 lineata Drap. or of Puncttim pyginceuni Drap. for this county, v. c. 45, and am 

 glad therefore to be able to record that I took both species last September at 

 Saundersfoot, in the beautiful woods of silver oak and birch to the west of the bay. 

 — J. Davy Dean {Read before the Society, May loth, 1916). 



Preservation of Land Shells. — Many land shells that have been badly 

 cleaned, or are too minute to clean properly, get covered with a very objectionable 

 fungoid growth which if allowed to remain destroys the shell completely or gives it a 

 worn appearance. To overcome this I have been using lately a mixture of linseed 

 oil, benzol and thymol in about the following proportions : — 10 per cent, of linseed 

 oil ; 90 per cent, of benzol ; 2 grammes of thymol crystals. This mixture pene- 

 trates the inside of the shells and gels into all small orifices, and all growths 

 disappear. The proportion of linseed oil can be reduced for small spinous shells 

 and increased to give a lustre to big shells, including marine shells. — B. R. Lucas 

 {^Read before the Society, Y€q. 9th, 1916). 



