76 Zoological Society : — 



concave outlines. Whorls, A, moderately convex, with a lightly im- 

 pressed suture ; last whorl wholly detached from the penult, extend- 

 ing about one-third the widest breadth of the shell beyond it, and an- 

 gularly and pointedly produced above. Apertiwe, slightly constricted 

 about the point of attachment to the penult whorl, then bulging or 

 swelling out and becoming slightly constricted at the labrum ; semi- 

 elliptic, but modified by the below-mentioned depression of the 

 labrum, and production of the last whorl, and also, in a correspond- 

 ing degree, on the lower side. Labrum, produced above to an extra- 

 ordinarv degree at the second carina, and there very much depressed 

 or bent inwards, thickened and reflected ; very slightly scolloped by 

 the spiral carinse. Labium, much detaclied from the penult whorl ; 

 upon a ])lane with the lower part of the labrum, but much below it 

 above ; slightly sinuate above, and very much so to the right at its 

 junction with the labrum below. UmbilicKS, moderately deep, only 

 partially concealed by the labial lamella, which is narrow and shortly 

 incurved towards the umbilicus. Operculum, ■ ? 



Height 0-024, greatest breadth 0059, least breadth 0-042. 



Named in compliment to my friend Sir William Jardine, Bart., of 

 Applegarth. 



WiLKINSON.EA GrEENWOODI ANA, Chitty. 



ILab. ? Hanover. 



Form, subdiscoidal. Colour, pale horn. Sculpture, lines of growth 

 visible ; three fine s()iral carinse and one strong, and so on vmtil the 

 fifth strong carina, below which, round the umbilicus, are six fine 

 carinse ; on the upper whorls one strong in the centre of six fine 

 carinas. Spire, depressed with convex outlines. TJlinrls, 3^, slightly 

 convex, with lightly impressed suture. Aperture, separated from 

 penult whorl in an elegant curved line, more than semicircular, 

 rather flattened above and very slightly expanded. Labrum, spread- 

 ing not very prominently above, white and smooth, slightly reflected 

 and expanded about its centre, pectinated very slightly by four of the 

 stronger carinse. Labium, slightly detached from penult whorl ; 

 sinuous, thin, and slightly reflected ; on the plane of the labrum 

 below, much below it above. Umbilicus, moderately deep and nar- 

 row, well circumscribed by the labial lamella, which is sharply and 

 slightly produced. Operculum, 1 



Height 0032, greatest breadth 0-0r)4, least breadth 0-044. 



Named in compliment to Major Greenwood, whose collection of 

 shells from New Zealand was sent by him to the British Museum. 



Wtlkinson.ea Laidlawiana, Chitty. 



Hub. Pool's Rock, Hanover. 



Form, subdiscoidal. Colour, very pale green. Sculpture, 1st, 

 2nd and 3rd spiral carinse, strong ; 4th strongest ; .5th, Gth and 7th 

 strong ; 8th strongest ; 9th, 10th and 1 1 th strong ; 1 2th strongest ; 

 13th, 1 4th and l.")th strong; 16th strongest; 17th, 18th and 1 9th 

 strong; 20th strongest; 2 1st and 22nd stronger; 23rd, 24th, 2.5th 

 and 2Gth, round umbilicus, fine ; the strong lines are all obsolete 

 behind the aperture ; on the upper whorls are o strong, 1 strongest, 



