288 PROCEEDINGS OF THE ACADEMY OF [1890- 



Trochomorpha pulcherrima Xnhis. PI. Ill, fig. i;;. 



Shell dextral, thin and sub-pellucid, lenticular, more convex 

 above than beneath. Whorls six, rounded and finely striate, mar- 

 gin acute, suture impressed, with a fillet beneath, inferior surface 

 more polished and very finely striate, umbilical region depressed, 

 umbilicus small and perforate to the apex, aperture simple, lunate,, 

 margin of the last whorl partially occluding the umbilicus. 



Height 5, diam. 12 mm. 



Hab. Aura Island, N. Hebrides. 



E. L. Layard, datum. This is certainly the most beautiful Tro- 

 chomorph from Aura Island which has yielded three new Trocho- 

 morpha and four new Partula. 



